{"id":1442,"date":"2020-07-30T11:50:16","date_gmt":"2020-07-30T11:50:16","guid":{"rendered":"http:\/\/jenaexperiment.uni-jena.de\/?page_id=1442"},"modified":"2020-08-26T10:11:52","modified_gmt":"2020-08-26T10:11:52","slug":"bef-experiment","status":"publish","type":"page","link":"https:\/\/jenaexperiment.uni-jena.de\/index.php\/bef-experiment\/","title":{"rendered":"\u0394BEF Experiment"},"content":{"rendered":"\n<p class=\"justify\">In 2016, we set up the \u0394BEF Experiment to explore mechanisms underlying the strengthening relationships between biodiversity and ecosystem functioning over time (<a href=\"https:\/\/doi.org\/10.1016\/bs.aecr.2019.06.002\">Vogel <em>et al.<\/em> 2019<\/a>). We therefore reestablished the plant communities of the Main Experiment that had started in 2002 (<a href=\"https:\/\/doi.org\/10.1078\/1439-1791-00216\">Roscher <em>et al. <\/em>2004<\/a>) with new seeds and old or new soil again in 2016. Comparing these treatments with the original communities set up in 2002, we test whether old communities have stronger plant diversity effects on plant productivity than young ones and if this depends on soil- or plant-related processes.<\/p>\n\n\n\n<div class=\"wp-block-image alignright\"><figure class=\"wp-block-image alignright size-large is-resized\"><figure><img loading=\"lazy\" src=\"\/wp-content\/uploads\/image-15.png\" alt=\"\" class=\"wp-image-1527\" width=\"289\" height=\"241\" srcset=\"\/blog\/wp-content\/uploads\/image-15.png 544w, \/blog\/wp-content\/uploads\/image-15-300x251.png 300w\" sizes=\"(max-width: 289px) 100vw, 289px\" \/><\/figure><figcaption>Location of subplots <\/figcaption><\/figure><\/div>\n\n\n\n<p class=\"justify\">In May 2016, we set up 3 subplots of 1.5 x 3 m size on all 80 plots of the Main Experiment (Roscher et al. 2004). The three subplots vary in soil history and in plant community history. In subplots without soil history and without plant history (treatment 1), we excavated the soil and plant layer to a depth of 30 cm, replaced it by soil of an adjacent arable field of the same soil layer, and sowed the same plot-specific plant species mixtures as in 2002 (new seeds). In subplots with soil history and without plant history (treatment 2), we removed the plant sod by using a digger, while keeping the soil of the respective plots, homogenized the upper 30 cm, and sowed the same plot-specific plant species mixtures as in 2002 (new seeds). As the third subplot (treatment 3), we used parts of the existing Main Experiment, which has a grown soil and plant history since 2002. Treatment 3 serves as a long-term control.<\/p>\n\n\n\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\">\n<figure class=\"wp-block-image aligncenter\"><img loading=\"lazy\" class=\"wp-image-1443\" src=\"\/wp-content\/uploads\/image-12.png\" alt=\"\" width=\"300\" height=\"280\"><span style=\"color: #555d66; font-size: 13px;\">Earthwork November 2016<\/span><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column\">\n<figure class=\"wp-block-image aligncenter\"><img loading=\"lazy\" class=\"wp-image-1445\" src=\"\/wp-content\/uploads\/image-14.png\" alt=\"\" width=\"300\" height=\"280\"><span style=\"color: #555d66; font-size: 13px;\">Established plots<\/span><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>In 2016, we set up the \u0394BEF Experiment to explore mechanisms underlying the strengthening relationships between biodiversity and ecosystem functioning over time (Vogel et al. 2019). We therefore reestablished the&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/jenaexperiment.uni-jena.de\/index.php\/wp-json\/wp\/v2\/pages\/1442"}],"collection":[{"href":"https:\/\/jenaexperiment.uni-jena.de\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jenaexperiment.uni-jena.de\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jenaexperiment.uni-jena.de\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/jenaexperiment.uni-jena.de\/index.php\/wp-json\/wp\/v2\/comments?post=1442"}],"version-history":[{"count":48,"href":"https:\/\/jenaexperiment.uni-jena.de\/index.php\/wp-json\/wp\/v2\/pages\/1442\/revisions"}],"predecessor-version":[{"id":1913,"href":"https:\/\/jenaexperiment.uni-jena.de\/index.php\/wp-json\/wp\/v2\/pages\/1442\/revisions\/1913"}],"wp:attachment":[{"href":"https:\/\/jenaexperiment.uni-jena.de\/index.php\/wp-json\/wp\/v2\/media?parent=1442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}