{"id":9775,"date":"2025-09-02T08:57:35","date_gmt":"2025-09-02T08:57:35","guid":{"rendered":"https:\/\/knoopbv.nl\/?p=9775"},"modified":"2026-02-24T15:54:52","modified_gmt":"2026-02-24T15:54:52","slug":"interview-ecologist-peter-paul","status":"publish","type":"post","link":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/","title":{"rendered":"Interview: Ecologist Peter Paul"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"9775\" class=\"elementor elementor-9775 elementor-9543\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-12bb528f e-flex e-con-boxed e-con e-parent\" data-id=\"12bb528f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-666d5fce elementor-widget elementor-widget-spacer\" data-id=\"666d5fce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ad174a8 elementor-widget elementor-widget-heading\" data-id=\"6ad174a8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Interview with aquatic ecologist Peter Paul Schollema about Drentsche Aa<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-66efbd77 e-flex e-con-boxed e-con e-parent\" data-id=\"66efbd77\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-02b3c03 elementor-widget elementor-widget-spacer\" data-id=\"02b3c03\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-56a1d188 elementor-widget elementor-widget-text-editor\" data-id=\"56a1d188\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\"><strong>A few years ago, Knoop BV realized a stream bottom increase in the Drentsche Aa area. Together with aquatic ecologist Peter Paul Schollema of water board the Hunze and Aa, we look back at how the project went then and how it is now. <\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7c35d755 e-flex e-con-boxed e-con e-parent\" data-id=\"7c35d755\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-24dfc686 e-con-full e-flex e-con e-child\" data-id=\"24dfc686\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5a081770 elementor-widget elementor-widget-heading\" data-id=\"5a081770\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Reflection five years after brook bottom elevation in the Drentsche Aa-area<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-621909de elementor-widget elementor-widget-text-editor\" data-id=\"621909de\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Under our feet is the soft murmur of running water. The Gasterensche Diepje meanders under the wooden bridge and here and there a leaf swirls from the trees. It is quiet, except for a few birds. \u201c<i>It&#8217;s beautiful here, isn&#8217;t it <\/i>\u201d say two hikers who pass by with their dog.  <\/p><p>Here, in the middle of the stream valley, we are standing at a special moment together with aquatic ecologist Peter Paul Schollema. Literally and figuratively. <\/p><p>In 2020 and 2021, <span class=\"s2\"><b>Knoop BV<\/b><\/span> carried out three ecological pilots in this unique Natura 2000 area, aimed at increasing the brook bottom. Now, almost five years later, we look back with the aquatic ecologist of Hunze and Aa&#8217;s Waterschap. What did the procedure yield? What is alive again, what is left behind? And how did nature itself respond to this careful but drastic operation? \u201c<i>You have to imagine,<\/i> \u201d says Peter Paul, \u201c<i>that such a stream will almost work as a drainage ditch in the summer. This is disastrous for nature reserves. <\/i>\u201d    <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5690356b e-con-full e-flex e-con e-child\" data-id=\"5690356b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b5fe26 elementor-widget elementor-widget-ucaddon_uc_carousel_image\" data-id=\"7b5fe26\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"ucaddon_uc_carousel_image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n<!-- start Carousel Gallery -->\n\t\t<link id='unitegallery-css' href='https:\/\/knoopbv.nl\/wp-content\/plugins\/unlimited-elements-for-elementor-premium\/assets_libraries\/unitegallery\/css\/unite-gallery.css' type='text\/css' rel='stylesheet' >\n\n\n<div id=\"uc_uc_carousel_image_elementor_7b5fe26\" style=\"display:none;\" class=\"uc-items-wrapper\" data-custom-sethtml=\"true\" >\n\n\n<img decoding=\"async\" alt=\"10\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/10-768x960.png\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/10-819x1024.png\"\n    data-title=\"10\">\n\n<img decoding=\"async\" alt=\"11\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/11-768x960.png\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/11-819x1024.png\"\n    data-title=\"11\">\n\n<img decoding=\"async\" alt=\"12\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/12-1-768x960.png\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/12-1-819x1024.png\"\n    data-title=\"12\">\n\n<img decoding=\"async\" alt=\"13\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/13-768x960.png\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/13-819x1024.png\"\n    data-title=\"13\">\n\n  \n<\/div>\n<!-- end Carousel Gallery -->\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6dffd36 e-flex e-con-boxed e-con e-parent\" data-id=\"6dffd36\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a075d97 elementor-blockquote--skin-quotation elementor-blockquote--align-center elementor-widget__width-initial elementor-blockquote--button-color-official elementor-widget elementor-widget-blockquote\" data-id=\"a075d97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"blockquote.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<blockquote class=\"elementor-blockquote\">\n\t\t\t<p class=\"elementor-blockquote__content\">\n\t\t\t\tThe stream literally began to empty nature\t\t\t<\/p>\n\t\t\t\t\t\t\t<div class=\"e-q-footer\">\n\t\t\t\t\t\t\t\t\t\t\t<cite class=\"elementor-blockquote__author\">Peter Paul Schollema<\/cite>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/blockquote>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-babeaec elementor-widget elementor-widget-spacer\" data-id=\"babeaec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8f6068a e-flex e-con-boxed e-con e-parent\" data-id=\"8f6068a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6c527a31 e-con-full e-flex e-con e-child\" data-id=\"6c527a31\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-35dfe878 elementor-widget elementor-widget-image\" data-id=\"35dfe878\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"451\" src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1969-1024x577.jpg\" class=\"attachment-large size-large wp-image-9874\" alt=\"Drentsche Aa gebied, 5 jaar na bezoek, vol in groei en groen; zicht op een close-up foto van de vorming van het zand op de beek. Een deel is door de zon extra uitgelicht met eromheen afgevallen bladeren, grassprieten en verdwaalde takjes (foto landscape genomen)\" srcset=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1969-1024x577.jpg 1024w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1969-300x169.jpg 300w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1969-768x433.jpg 768w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1969-1536x866.jpg 1536w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1969.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-034fc2e elementor-widget elementor-widget-spacer\" data-id=\"034fc2e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6a3eb578 e-con-full e-flex e-con e-child\" data-id=\"6a3eb578\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5071cf62 elementor-widget elementor-widget-heading\" data-id=\"5071cf62\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The vulnerability of a bastion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f72de32 elementor-widget elementor-widget-text-editor\" data-id=\"6f72de32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"font-weight: 400;\">The Drentsche Aa area is one of the last virtually untouched brook valley landscapes in the Netherlands. In many other areas, streams have been channeled, straightened or heavily influenced by agriculture and infrastructure. But here the original pattern was preserved and with results: fish species such as the serpeling and river prick are still swimming, plants such as meadowsweet and water mint bloom along the banks.  <\/p><p style=\"font-weight: 400;\"> <\/p><p style=\"font-weight: 400;\">However, desiccation was also felt here. \u201c<em>We saw that the streams became deeper and deeper in the landscape,<\/em> \u201d says Peter Paul. \u201c<em>And that means: sinking water levels in the summer, drying banks, decrease in sponsorship. The stream literally began to empty nature.<\/em> \u201d<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-297f427 e-flex e-con-boxed e-con e-parent\" data-id=\"297f427\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-bdcfe5c e-con-full e-flex e-con e-child\" data-id=\"bdcfe5c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c7b70ac elementor-widget elementor-widget-heading\" data-id=\"c7b70ac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Technology with policy<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ded3a3 elementor-widget elementor-widget-text-editor\" data-id=\"3ded3a3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"font-weight: 400;\">Knoop BV worked on an innovative solution together with the water board. Not through heavy equipment that would damage vulnerable banks, but through a sophisticated system: sand was mixed with water and brought into the stream via a press line. \u201c<em>Fair is fair,<\/em> \u201d Peter Paul laughs, \u201c<em>at first I was skeptical. But it turned out to be brilliant. You avoid driving damage, work carefully, and can steer very precisely. <\/em>\u201d <\/p><p style=\"font-weight: 400;\">Geotextiles, amphibious machines, temporary ramps and winter versions made it possible to work with minimal disturbance, even in the wettest, worst accessible parts of the stream valley. The performance in the Zeegscherloopje, Anlo\u00ebrdiep and Taarlosche Diep went smoothly. But then it starts.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-daac1d5 elementor-widget elementor-widget-spacer\" data-id=\"daac1d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-df71a0e e-con-full e-flex e-con e-child\" data-id=\"df71a0e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-02f41a9 elementor-widget elementor-widget-spacer\" data-id=\"02f41a9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e918e2f elementor-widget elementor-widget-image\" data-id=\"e918e2f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"451\" src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1988-1024x577.jpg\" class=\"attachment-large size-large wp-image-9910\" alt=\"Drentsche Aa gebied, 5 jaar na bezoek, vol in groei en groen; zicht op de bloemen die zijn wedergekeerd na het project van de beekbodemverhoging\" srcset=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1988-1024x577.jpg 1024w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1988-300x169.jpg 300w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1988-768x433.jpg 768w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1988-1536x866.jpg 1536w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1988.jpg 2048w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-00f5ea2 e-flex e-con-boxed e-con e-parent\" data-id=\"00f5ea2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-9dbc0b1 e-con-full e-flex e-con e-child\" data-id=\"9dbc0b1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-30e940f elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"30e940f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e6534a2 e-flex e-con-boxed e-con e-parent\" data-id=\"e6534a2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-91d7d91 e-con-full e-flex e-con e-child\" data-id=\"91d7d91\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-11b7fe4 elementor-widget elementor-widget-heading\" data-id=\"11b7fe4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Patient nature<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f284c1 elementor-widget elementor-widget-text-editor\" data-id=\"3f284c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"font-weight: 400;\">The direct effects were visible: the water level in the streams increased, the groundwater in the riparian countries recovered. But five years is short for flora and fauna. \u201cPlants react slo<em>wly,<\/em> \u201d says Peter Paul, &#8220;<em>The recovery of macrofauna was more visible: aquatic animals and insects returned remarkably quickly, and fish also found their way back to the renewed stream bed. \u201d<\/em> <\/p><p style=\"font-weight: 400;\"> <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f085b0c e-con-full e-flex e-con e-child\" data-id=\"f085b0c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c1cf3d0 elementor-widget elementor-widget-spacer\" data-id=\"c1cf3d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d504eed elementor-widget elementor-widget-text-editor\" data-id=\"d504eed\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"font-weight: 400;\">Crucial was the maintenance of variation. \u201c<em>A stream is not a straight box,<\/em> \u201d he explains. \u201c<em>You need deep pits for drought periods, coarse sand in outer bends, fine sludge in inner bends. And yes, there is still. The sand is there, even after the extremely wet winter of 2023 \u2013 2024. <\/em>\u201d<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-437907d e-flex e-con-boxed e-con e-parent\" data-id=\"437907d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ea9b62f elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"ea9b62f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1efe60e e-flex e-con-boxed e-con e-parent\" data-id=\"1efe60e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-2c72f25 e-con-full e-flex e-con e-child\" data-id=\"2c72f25\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-22296e6 elementor-widget elementor-widget-heading\" data-id=\"22296e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A method with potential<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c14435 elementor-widget elementor-widget-text-editor\" data-id=\"7c14435\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"font-weight: 400;\">This method is not suitable for every area. \u201c<em>But where you are dealing with inaccessible peat valleys or vulnerable zones, this is a solution, <\/em>\u201d says Peter Paul. \u201c<em>You avoid large machines, and you can still intervene to scale.<\/em> \u201d Meanwhile, other water boards and nature managers are also watching with interest.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-dc78dde e-con-full e-flex e-con e-child\" data-id=\"dc78dde\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fd32567 elementor-blockquote--skin-quotation elementor-blockquote--align-center elementor-blockquote--button-color-official elementor-widget elementor-widget-blockquote\" data-id=\"fd32567\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"blockquote.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<blockquote class=\"elementor-blockquote\">\n\t\t\t<p class=\"elementor-blockquote__content\">\n\t\t\t\tThe sand is there, even after the extremely wet winter of 2023 - 2024!\t\t\t<\/p>\n\t\t\t\t\t\t\t<div class=\"e-q-footer\">\n\t\t\t\t\t\t\t\t\t\t\t<cite class=\"elementor-blockquote__author\">Peter Paul Schollema<\/cite>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/blockquote>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a98ccec e-flex e-con-boxed e-con e-parent\" data-id=\"a98ccec\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3bafbdb e-con-full e-flex e-con e-child\" data-id=\"3bafbdb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d0576a7 elementor-widget elementor-widget-image\" data-id=\"d0576a7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"2048\" height=\"1154\" src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1941.jpg\" class=\"attachment-full size-full wp-image-9906\" alt=\"Drentsche Aa gebied, 5 jaar na bezoek, vol in groei en groen; zicht op aquatisch ecoloog Peter Paul Schollema midden in de bossen en grassen van het natuurgebied, volledig in bloei.\" srcset=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1941.jpg 2048w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1941-300x169.jpg 300w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1941-1024x577.jpg 1024w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1941-768x433.jpg 768w, https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1941-1536x866.jpg 1536w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1b3b634 elementor-widget elementor-widget-spacer\" data-id=\"1b3b634\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-90d62a3 elementor-widget elementor-widget-spacer\" data-id=\"90d62a3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1c99bc4 e-con-full e-flex e-con e-child\" data-id=\"1c99bc4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bcb1b86 elementor-widget elementor-widget-spacer\" data-id=\"bcb1b86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4aa958f elementor-widget elementor-widget-heading\" data-id=\"4aa958f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Learning from collaboration<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7e9707 elementor-widget elementor-widget-text-editor\" data-id=\"b7e9707\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"font-weight: 400;\">What this project mainly showed is how technology and ecology can reinforce each other. \u201c<em>If you take each other seriously,<\/em> \u201d says Peter Paul, \u201c<em>and keep talking about risks and solutions, you will come to things that you did not think possible beforehand.<\/em> \u201d From nozzle design to wood insertion, from sand quality to delivery windows, it all came together in a precise dance between man and nature.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-58a50b9 e-flex e-con-boxed e-con e-parent\" data-id=\"58a50b9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-947a4fa e-con-full e-flex e-con e-child\" data-id=\"947a4fa\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a86235d elementor-widget elementor-widget-heading\" data-id=\"a86235d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A permanent impression<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7ed39f elementor-widget elementor-widget-text-editor\" data-id=\"a7ed39f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"font-weight: 400;\">What stayed with him the most? \u201c<em>The complexity, <\/em>\u201d he says without hesitation. \u201c<em>Ecology, archeology, hydrology, chemistry; everything comes together. You think: we bring in some sand. But you are talking about hundreds of decisions, constantly switching, adjusting, monitoring. And we did that together. That&#8217;s the best thing. <\/em>\u201d<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-74e55ed e-con-full e-flex e-con e-child\" data-id=\"74e55ed\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-612b3f7 elementor-blockquote--skin-quotation elementor-blockquote--align-center elementor-blockquote--button-color-official elementor-widget elementor-widget-blockquote\" data-id=\"612b3f7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"blockquote.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<blockquote class=\"elementor-blockquote\">\n\t\t\t<p class=\"elementor-blockquote__content\">\n\t\t\t\tAnd we did that together. That is the most beautiful.  \t\t\t<\/p>\n\t\t\t\t\t\t\t<div class=\"e-q-footer\">\n\t\t\t\t\t\t\t\t\t\t\t<cite class=\"elementor-blockquote__author\">Peter Paul Schollema<\/cite>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/blockquote>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-34e838b0 e-flex e-con-boxed e-con e-parent\" data-id=\"34e838b0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cc748c6 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"cc748c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e0b1da elementor-widget elementor-widget-ucaddon_uc_carousel_image\" data-id=\"5e0b1da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"ucaddon_uc_carousel_image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n<!-- start Carousel Gallery -->\n\n\n<div id=\"uc_uc_carousel_image_elementor_5e0b1da\" style=\"display:none;\" class=\"uc-items-wrapper\" data-custom-sethtml=\"true\" >\n\n\n<img decoding=\"async\" alt=\"DSCF1913\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1913-768x1363.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1913-577x1024.jpg\"\n    data-title=\"DSCF1913\">\n\n<img decoding=\"async\" alt=\"DSCF1920\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1920-768x433.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1920-1024x577.jpg\"\n    data-title=\"DSCF1920\">\n\n<img decoding=\"async\" alt=\"DSCF1969\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1969-768x433.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1969-1024x577.jpg\"\n    data-title=\"DSCF1969\">\n\n<img decoding=\"async\" alt=\"DSCF1932\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1932-768x1363.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1932-577x1024.jpg\"\n    data-title=\"DSCF1932\">\n\n<img decoding=\"async\" alt=\"DSCF1908\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1908-768x433.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1908-1024x577.jpg\"\n    data-title=\"DSCF1908\">\n\n<img decoding=\"async\" alt=\"DSCF1935\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1935-768x1363.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1935-577x1024.jpg\"\n    data-title=\"DSCF1935\">\n\n<img decoding=\"async\" alt=\"DSCF1937\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1937-768x1363.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1937-577x1024.jpg\"\n    data-title=\"DSCF1937\">\n\n<img decoding=\"async\" alt=\"DSCF1941\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1941-768x433.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1941-1024x577.jpg\"\n    data-title=\"DSCF1941\">\n\n<img decoding=\"async\" alt=\"DSCF1988\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1988-768x433.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1988-1024x577.jpg\"\n    data-title=\"DSCF1988\">\n\n<img decoding=\"async\" alt=\"DSCF1994\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1994-768x1363.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1994-577x1024.jpg\"\n    data-title=\"DSCF1994\">\n\n<img decoding=\"async\" alt=\"DSCF2009\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2009-768x433.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2009-1024x577.jpg\"\n    data-title=\"DSCF2009\">\n\n<img decoding=\"async\" alt=\"DSCF1922\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1922-768x1363.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1922-577x1024.jpg\"\n    data-title=\"DSCF1922\">\n\n<img decoding=\"async\" alt=\"DSCF1902\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1902-768x1363.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1902-577x1024.jpg\"\n    data-title=\"DSCF1902\">\n\n<img decoding=\"async\" alt=\"DSCF1898\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1898-768x433.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF1898-1024x577.jpg\"\n    data-title=\"DSCF1898\">\n\n<img decoding=\"async\" alt=\"DSCF2001\"\n   src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001-768x433.jpg\"\n    data-image=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001-1024x577.jpg\"\n    data-title=\"DSCF2001\">\n\n  \n<\/div>\n<!-- end Carousel Gallery -->\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e92357e elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6e92357e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4462eb7b elementor-widget elementor-widget-author-box\" data-id=\"4462eb7b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"author-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-author-box\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/www.linkedin.com\/in\/rianne-knoop-6b1ba91a1\/\" class=\"elementor-author-box__avatar\">\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2026\/02\/6D6182B1-CEF6-4ECE-B99E-918F4882B616-200x300.jpg\" alt=\"Picture of Rianne Knoop\" loading=\"lazy\">\n\t\t\t\t<\/a>\n\t\t\t\n\t\t\t<div class=\"elementor-author-box__text\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.linkedin.com\/in\/rianne-knoop-6b1ba91a1\/\">\n\t\t\t\t\t\t<h4 class=\"elementor-author-box__name\">\n\t\t\t\t\t\t\tRianne Knoop\t\t\t\t\t\t<\/h4>\n\t\t\t\t\t<\/a>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-author-box__bio\">\n\t\t\t\t\t\t<p>Part of the organization all her life, but an active part of the (marketing) team for a few years now. Creating value and beautiful content to show why Knoop BV is so valuable for the living environment of people, animals and plants.  <\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<a class=\"elementor-author-box__button elementor-button elementor-size-xs\" href=\"https:\/\/www.linkedin.com\/in\/rianne-knoop-6b1ba91a1\/\">\n\t\t\t\t\t\tLinkedIn\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37d4f61c elementor-widget elementor-widget-spacer\" data-id=\"37d4f61c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9df2e85 elementor-widget elementor-widget-text-editor\" data-id=\"9df2e85\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Curious about the project of the brook bottom elevation? With our <span style=\"text-decoration: underline;\"><span style=\"color: #000000; text-decoration: underline;\"><a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/knoopbv.nl\/en\/nature-restoration-and-inland-dredging\/nature-restoration-hydraulic-engineering-de-drentse-aa\/\">reference page<\/a><\/span><\/span> you will learn how we looked at it and what we have used for the best results.  <\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d9f613 elementor-button-success elementor-widget elementor-widget-button\" data-id=\"6d9f613\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/knoopbv.nl\/en\/nature-restoration-and-inland-dredging\/nature-restoration-hydraulic-engineering-de-drentse-aa\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\" icon_cursor_alt\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Reference project Drentsche AA<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7163088e elementor-widget elementor-widget-spacer\" data-id=\"7163088e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Interview with aquatic ecologist Peter Paul Schollema about Drentsche Aa A few years ago, Knoop BV realized a stream bottom increase in the Drentsche Aa area. Together with aquatic ecologist Peter Paul Schollema of water board the Hunze and Aa, we look back at how the project went then and how it is now. Reflection [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9918,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[51,43,42,48],"tags":[],"class_list":["post-9775","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-info-en","category-innovation","category-news","category-project-updates-en"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v25.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Interview: Drentsche AA Ecologist Peter Paul | Knoop BV<\/title>\n<meta name=\"description\" content=\"Drentsche AA streambed raising five years later: In an interview with ecologist Peter Paul, we look back and ahead.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Interview: Ecologist Peter Paul\" \/>\n<meta property=\"og:description\" content=\"Drentsche AA streambed raising five years later: In an interview with ecologist Peter Paul, we look back and ahead.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/\" \/>\n<meta property=\"og:site_name\" content=\"KnoopBV\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/knoopBV\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-02T08:57:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-24T15:54:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001-1024x577.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"577\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/knoopbv.nl\/en\/#\/schema\/person\/f3f1dfce2a59d70a51069e6343f08995\"},\"headline\":\"Interview: Ecologist Peter Paul\",\"datePublished\":\"2025-09-02T08:57:35+00:00\",\"dateModified\":\"2026-02-24T15:54:52+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/\"},\"wordCount\":820,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/#organization\"},\"image\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001.jpg\",\"articleSection\":[\"Info\",\"Innovation\",\"News\",\"Project updates\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/\",\"url\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/\",\"name\":\"Interview: Drentsche AA Ecologist Peter Paul | Knoop BV\",\"isPartOf\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001.jpg\",\"datePublished\":\"2025-09-02T08:57:35+00:00\",\"dateModified\":\"2026-02-24T15:54:52+00:00\",\"description\":\"Drentsche AA streambed raising five years later: In an interview with ecologist Peter Paul, we look back and ahead.\",\"breadcrumb\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#primaryimage\",\"url\":\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001.jpg\",\"contentUrl\":\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001.jpg\",\"width\":2048,\"height\":1154,\"caption\":\"Drentsche Aa gebied, 5 jaar na bezoek, vol in groei en groen; zicht op aquatisch ecoloog Peter Paul Schollema over de houten brug tussen de bomen en bossen die vol in bloei staan van het natuurgebied\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/knoopbv.nl\/en\/home\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Interview: Ecologist Peter Paul\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/knoopbv.nl\/en\/#website\",\"url\":\"https:\/\/knoopbv.nl\/en\/\",\"name\":\"Knoop BV\",\"description\":\"Ingenious for you\",\"publisher\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/knoopbv.nl\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/knoopbv.nl\/en\/#organization\",\"name\":\"Knoop BV\",\"url\":\"https:\/\/knoopbv.nl\/en\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/knoopbv.nl\/en\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/06\/cropped-knoop-logo-zonder-achtergrond.png\",\"contentUrl\":\"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/06\/cropped-knoop-logo-zonder-achtergrond.png\",\"width\":512,\"height\":512,\"caption\":\"Knoop BV\"},\"image\":{\"@id\":\"https:\/\/knoopbv.nl\/en\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/knoopBV\",\"https:\/\/www.linkedin.com\/company\/knoop-baggerwerken-bv\/\",\"https:\/\/www.youtube.com\/@knoopbv5280\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/knoopbv.nl\/en\/#\/schema\/person\/f3f1dfce2a59d70a51069e6343f08995\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/knoopbv.nl\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/906be865c5f5c94ef5db8f9a464875026e5197df129d1811bfa81dd9b9c0a7ac?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/906be865c5f5c94ef5db8f9a464875026e5197df129d1811bfa81dd9b9c0a7ac?s=96&d=mm&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"https:\/\/knoopbv.nl\"],\"url\":\"https:\/\/knoopbv.nl\/en\/author\/marketing_4v7bhffa\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Interview: Drentsche AA Ecologist Peter Paul | Knoop BV","description":"Drentsche AA streambed raising five years later: In an interview with ecologist Peter Paul, we look back and ahead.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/","og_locale":"en_US","og_type":"article","og_title":"Interview: Ecologist Peter Paul","og_description":"Drentsche AA streambed raising five years later: In an interview with ecologist Peter Paul, we look back and ahead.","og_url":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/","og_site_name":"KnoopBV","article_publisher":"https:\/\/www.facebook.com\/knoopBV","article_published_time":"2025-09-02T08:57:35+00:00","article_modified_time":"2026-02-24T15:54:52+00:00","og_image":[{"width":1024,"height":577,"url":"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001-1024x577.jpg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"admin","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#article","isPartOf":{"@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/"},"author":{"name":"admin","@id":"https:\/\/knoopbv.nl\/en\/#\/schema\/person\/f3f1dfce2a59d70a51069e6343f08995"},"headline":"Interview: Ecologist Peter Paul","datePublished":"2025-09-02T08:57:35+00:00","dateModified":"2026-02-24T15:54:52+00:00","mainEntityOfPage":{"@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/"},"wordCount":820,"commentCount":0,"publisher":{"@id":"https:\/\/knoopbv.nl\/en\/#organization"},"image":{"@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#primaryimage"},"thumbnailUrl":"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001.jpg","articleSection":["Info","Innovation","News","Project updates"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/","url":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/","name":"Interview: Drentsche AA Ecologist Peter Paul | Knoop BV","isPartOf":{"@id":"https:\/\/knoopbv.nl\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#primaryimage"},"image":{"@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#primaryimage"},"thumbnailUrl":"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001.jpg","datePublished":"2025-09-02T08:57:35+00:00","dateModified":"2026-02-24T15:54:52+00:00","description":"Drentsche AA streambed raising five years later: In an interview with ecologist Peter Paul, we look back and ahead.","breadcrumb":{"@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#primaryimage","url":"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001.jpg","contentUrl":"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/09\/DSCF2001.jpg","width":2048,"height":1154,"caption":"Drentsche Aa gebied, 5 jaar na bezoek, vol in groei en groen; zicht op aquatisch ecoloog Peter Paul Schollema over de houten brug tussen de bomen en bossen die vol in bloei staan van het natuurgebied"},{"@type":"BreadcrumbList","@id":"https:\/\/knoopbv.nl\/en\/interview-ecologist-peter-paul\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/knoopbv.nl\/en\/home\/"},{"@type":"ListItem","position":2,"name":"Interview: Ecologist Peter Paul"}]},{"@type":"WebSite","@id":"https:\/\/knoopbv.nl\/en\/#website","url":"https:\/\/knoopbv.nl\/en\/","name":"Knoop BV","description":"Ingenious for you","publisher":{"@id":"https:\/\/knoopbv.nl\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/knoopbv.nl\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/knoopbv.nl\/en\/#organization","name":"Knoop BV","url":"https:\/\/knoopbv.nl\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/knoopbv.nl\/en\/#\/schema\/logo\/image\/","url":"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/06\/cropped-knoop-logo-zonder-achtergrond.png","contentUrl":"https:\/\/knoopbv.nl\/wp-content\/uploads\/2025\/06\/cropped-knoop-logo-zonder-achtergrond.png","width":512,"height":512,"caption":"Knoop BV"},"image":{"@id":"https:\/\/knoopbv.nl\/en\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/knoopBV","https:\/\/www.linkedin.com\/company\/knoop-baggerwerken-bv\/","https:\/\/www.youtube.com\/@knoopbv5280"]},{"@type":"Person","@id":"https:\/\/knoopbv.nl\/en\/#\/schema\/person\/f3f1dfce2a59d70a51069e6343f08995","name":"admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/knoopbv.nl\/en\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/906be865c5f5c94ef5db8f9a464875026e5197df129d1811bfa81dd9b9c0a7ac?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/906be865c5f5c94ef5db8f9a464875026e5197df129d1811bfa81dd9b9c0a7ac?s=96&d=mm&r=g","caption":"admin"},"sameAs":["https:\/\/knoopbv.nl"],"url":"https:\/\/knoopbv.nl\/en\/author\/marketing_4v7bhffa\/"}]}},"_links":{"self":[{"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/posts\/9775","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/comments?post=9775"}],"version-history":[{"count":9,"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/posts\/9775\/revisions"}],"predecessor-version":[{"id":11420,"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/posts\/9775\/revisions\/11420"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/media\/9918"}],"wp:attachment":[{"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/media?parent=9775"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/categories?post=9775"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/knoopbv.nl\/en\/wp-json\/wp\/v2\/tags?post=9775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}