{"id":453,"date":"2022-09-07T11:28:49","date_gmt":"2022-09-07T11:28:49","guid":{"rendered":"https:\/\/hiilipuu-prod-22.atm.helsinki.fi\/hiilipuu\/?p=453"},"modified":"2022-09-07T11:28:50","modified_gmt":"2022-09-07T11:28:50","slug":"matning-av-marksandning","status":"publish","type":"post","link":"https:\/\/www.hiilipuu.fi\/index.php\/sv\/2022\/09\/07\/matning-av-marksandning\/","title":{"rendered":"M\u00e4tning av marksandning"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Metod f\u00f6r att m\u00e4ta markrespirationen \u00e4r ganska enkel. Vi satt kammaren p\u00e5 market och f\u00f6ljer med hur koldioxidhalten f\u00f6r\u00e4ndras i kammarens luftrum. Om markvegetation binder koldioxid till sig, koldioxidhalten sjunker i kammaren. Koncentrationen stiger d\u00e4remot eftersom v\u00e4xter och marken samtidigt andas ut koldioxid.<\/p>\n\n\n\n<p>D\u00e5 kammaren \u00e4r st\u00e4ngd m\u00e4tas f\u00f6r\u00e4ndringarna i koldioxidhalten och ur uppgifterna r\u00e4knar vi ut koldioxid flux fr\u00e5n marken en viss period. M\u00e4tprincipen \u00e4r i sj\u00e4lva verket mycket enkel och d\u00e4rf\u00f6r anv\u00e4nds allm\u00e4nt i v\u00e4xtfysiologis forskning. Kamrarna st\u00e4ngs och \u00f6ppnas automatiskt s\u00e5 m\u00e4tprincipen \u00e4r ganska oberoende. De m\u00e4tkammarna \u00e4r genomskinliga och ventilerade. De f\u00f6ljer s\u00e5ledes f\u00f6r\u00e4ndringarna i den yttre luftens milj\u00f6faktorer, likasom ljus, temperatur och luftfuktighet under dagen och enligt \u00e5rstiden.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"701\" height=\"466\" src=\"https:\/\/hiilipuu-prod-22.atm.helsinki.fi\/hiilipuu\/wp-content\/uploads\/2022\/09\/Maakammio_JAalto_p-2.jpg\" alt=\"\" class=\"wp-image-454\"\/><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Metod f\u00f6r att m\u00e4ta markrespirationen \u00e4r ganska enkel. Vi satt kammaren p\u00e5 market och f\u00f6ljer med hur koldioxidhalten f\u00f6r\u00e4ndras i kammarens luftrum. Om markvegetation binder koldioxid till sig, koldioxidhalten sjunker i kammaren. Koncentrationen stiger d\u00e4remot eftersom v\u00e4xter och marken samtidigt andas ut koldioxid. D\u00e5 kammaren \u00e4r st\u00e4ngd m\u00e4tas f\u00f6r\u00e4ndringarna i koldioxidhalten och ur uppgifterna r\u00e4knar&hellip;&nbsp;<a href=\"https:\/\/www.hiilipuu.fi\/index.php\/sv\/2022\/09\/07\/matning-av-marksandning\/\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">M\u00e4tning av marksandning<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[27],"tags":[],"class_list":["post-453","post","type-post","status-publish","format-standard","hentry","category-artiklar"],"_links":{"self":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts\/453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/comments?post=453"}],"version-history":[{"count":1,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts\/453\/revisions"}],"predecessor-version":[{"id":455,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts\/453\/revisions\/455"}],"wp:attachment":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/media?parent=453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/categories?post=453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/tags?post=453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}