{"id":1265,"date":"2013-02-18T13:58:38","date_gmt":"2013-02-18T12:58:38","guid":{"rendered":"https:\/\/naturvernforbundet.no\/rogaland\/plantelivet-i-madlabekken-rensepark\/"},"modified":"2013-02-18T13:58:38","modified_gmt":"2013-02-18T12:58:38","slug":"plantelivet-i-madlabekken-rensepark","status":"publish","type":"post","link":"https:\/\/naturvernforbundet.no\/rogaland\/plantelivet-i-madlabekken-rensepark\/","title":{"rendered":"Plantelivet i Madlabekken rensepark"},"content":{"rendered":"\t<div class=\"template-post alignfull wp-block-naturvern-hero\">\n\t\t<div class=\"hero__inner\">\n\t\t\t<div class=\"hero__inner_blocks\">\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t<h1 class=\"wp-block-post-title\">Plantelivet i Madlabekken rensepark<\/h1>\n\n\t\t\t\t\t<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\"> <\/p><\/div>\n\n\t\t\t\t\t<figure class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"653\" height=\"435\" src=\"https:\/\/naturvernforbundet.no\/content\/uploads\/sites\/16\/2013\/02\/5A20Gul20sverdlilje.jpg2028articledisplay29.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" style=\"object-fit:cover;\" srcset=\"https:\/\/naturvernforbundet.no\/content\/uploads\/sites\/16\/2013\/02\/5A20Gul20sverdlilje.jpg2028articledisplay29.jpg 653w, https:\/\/naturvernforbundet.no\/content\/uploads\/sites\/16\/2013\/02\/5A20Gul20sverdlilje.jpg2028articledisplay29-300x200.jpg 300w\" sizes=\"auto, (max-width: 653px) 100vw, 653px\" \/><\/figure>\n\n\t\t\t\t\t<div class=\"wp-block-naturvern-byline\">\n\t\t\t<div class=\"authors\">By <span class=\"t2-byline__author-link\">Erik Thoring<\/span><\/div>\n\t\t\t<small class=\"entry-date\">18.02.2013 13:58<\/small>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\n<p>\n\tAv Gaute Slaattebrekk, NBF, Rogaland.<\/p>\n\n\n\n<p>\n\t21.juni.1994: Kveldstur til Mosvatnet rensepark i Stavanger. Rune Bakke forklarte hvordan renseparken er konstruert, hvordan den fungerer, og om fremtidige planer. Renseparken ble bygd i 1990\/91 og var da et pilotprosjekt for 6 skaffe erfaring med plantebasert rensing av sigevann fra urbane omr\u00e5der.<\/p>\n\n\n\n<p>\n\tMadlabekken, en sterkt forurenset bekk med utl\u00f8p til Mosvatnet, ble n\u00e5 ledet ved naturlig fall inn i en bioreaktor. Fra bunnen av reaktoren pumpes slamvann opp i en hoyereliggende kum. Herfra renner vannet via en mindre dam giennom et slyngformet plantebevokst dam&amp;kanalsystem f\u00f8r det mer eller mindre diffust renner giennom en krattskog og ut i Mosvatnet.<\/p>\n\n\n\n<p>\n\tPlantene til renseparken ble hentet fra Mosvatnet ved etableringen av parken. De ble plassert i god avstand fra hverandre. P\u00e5 den m\u00e5ten kunne en lett kartlegge veksten til de ulike arter under etableringen, med variert n\u00e6ringstilgang og til ulike tider av \u00e5ret. I den f\u00f8rste dammen hadde store bestander av bred <strong>dun<\/strong><strong>kjevle<\/strong> &#8211; <em>Typha <\/em><em>latifolia<\/em>, <strong>takr\u00f8r <\/strong>&#8211; <em>Phragmites <\/em><em>aust<\/em><em>ralis<\/em>, <strong>flaskestarr<\/strong> &#8211; Carex rostrata, mannas\u00f8tgras &#8211; <em>Glyceria <\/em><em>fluitans<\/em> &#8211; og <strong>strandr\u00f8r<\/strong> &#8211; Phalaris arundinacea &#8211; etablert seg, med mindre i\u00f8ynefallende bestander av <strong>knereverumpe<\/strong> &#8211; Alopecurus geniculatus &#8211; og <strong>krypkvein<\/strong> &#8211; Agrostis stolonifera.<\/p>\n\n\n\n<p>\n\tVed stor n\u00e6ringstilgang var <strong>sj\u00f8sivaks<\/strong> &#8211; <em>Schoenoplectus <\/em><em>lacustris<\/em>, <strong>ryllsiv<\/strong> &#8211; Juncus articulatus, <strong>gul <\/strong><strong>n\u00f8kkerose <\/strong>&#8211; <em>Nuphar <\/em><em>lutea<\/em> &#8211; og <strong>dikevass<\/strong><strong>h\u00e5r <\/strong>&#8211; <em>Callitriche stagnalis<\/em> &#8211; taperne i konkurransen.<\/p>\n\n\n\n<p>\n\tI dam-\/ kanalsystemets umiddelbare n\u00e6rhet vokste det store og kraftige bestander av <strong>knappsiv<\/strong> &#8211; Juncus conglomeratus &#8211; og <strong>lyssiv<\/strong> &#8211; J. effusus. <strong>Sverdlilje<\/strong> &#8211; Iris pseudacorus &#8211; spredte seg veldig langsomt utover, selv om hver enkelt plante var kraftig, isolert sett. I den nedre del av rensesl\u00f8yfen, hvor n\u00e6ringstilgangen var mindre, fant vi store bestander av <strong>ryllsiv<\/strong>, <strong>krypsiv<\/strong> &#8211; <em>Juncus <\/em><em>supinus<\/em> &#8211; og <strong>strandr\u00f8r<\/strong>.<\/p>\n\n\n\n<p>\n\tDet vannet som ikke pumpes opp i rensesl\u00f8yfen fra bioreaktoren, f\u00e5r f\u00f8rst et opphold i en dam f\u00f8r det ledes tilbake i Madlabekkens gamle utl\u00f8p til Mosvatnet. I denne dammen vokser det <strong>bred dunkjevle<\/strong> og <strong>kalmusrot<\/strong> -Acorus calarnus &#8211; side om side. Bred dunkjevle sprer seg imidlertid raskere enn kalmusrot. Greiner av pil som opprinnelig var benyttet for \u00e5 hindre at kalmusrot og bred dunkjevle l\u00f8snet fra bunnen ved stor vannf\u00f8ring, satte ogs\u00e5 nye skudd i det n\u00e6ringsrike vannet.<\/p>\n\n\n\n<p>\n\t(Fra Blyttia nr 2-1995)<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":76,"featured_media":731,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","hide_logo":false,"footnotes":""},"categories":[13],"tags":[],"local":[],"class_list":["post-1265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bakgunnsartikler2"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - 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