{"id":279,"date":"2022-09-02T06:36:31","date_gmt":"2022-09-02T06:36:31","guid":{"rendered":"https:\/\/hiilipuu-prod-22.atm.helsinki.fi\/hiilipuu\/?p=279"},"modified":"2022-09-02T06:36:32","modified_gmt":"2022-09-02T06:36:32","slug":"modell","status":"publish","type":"post","link":"https:\/\/www.hiilipuu.fi\/index.php\/sv\/2022\/09\/02\/modell\/","title":{"rendered":"Modell"},"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\" style=\"flex-basis:66.66%\">\n<p>Efter flera \u00e5r av m\u00e4tningar f\u00e5r man en hel del av information om v\u00e4xtens andning. Vi vet ungef\u00e4r hur hastighet av v\u00e4xt andningen best\u00e4ms av de f\u00f6r\u00e4ndrade milj\u00f6f\u00f6rh\u00e5llandena. V\u00e4xt andningen f\u00f6r\u00e4ndringar exponentiell n\u00e4r temperatur \u00f6kar. Responsen p\u00e5 temperatur kan falla n\u00e4r marken vattentillg\u00e5ngen (REW) \u00e4r l\u00e5g.<\/p>\n\n\n\n<p>Dessa relationer kan uttryckas som en enkel matematisk ekvation:<\/p>\n\n\n\n<p>R = Max { 0,&nbsp; f(REW) * r<sub>0<\/sub>&nbsp;* q<sub>10<\/sub><sup>(T\/10)<\/sup>&nbsp;\u2013 c<sub>r<\/sub>&nbsp;}<\/p>\n\n\n\n<p>R betyder andningshastigheten (dvs CO<sub>2<\/sub>\u00a0-utsl\u00e4pp fr\u00e5n andning), T \u00e4r\u00a0temperatur\u00a0och\u00a0REW, markens vattenhalt. P\u00e5 v\u00e5r m\u00e4tstation i Hyyti\u00e4l\u00e4, r<sub>0<\/sub>=1.6 \u00b5mol m<sup>\u20132<\/sup>\u00a0s<sup>\u20131<\/sup>, q<sub>10<\/sub>=1.5, c<sub>r<\/sub>=0.8 \u00b5mol m<sup>\u20132<\/sup>\u00a0s<sup>\u20131<\/sup>\u00a0och<\/p>\n\n\n\n<p>f(REW)= Min {1,&nbsp; Max { 0,&nbsp; (REW+d<sub>rew<\/sub>) \/ REW<sub>crit<\/sub>&nbsp;} }<\/p>\n\n\n\n<p>var d<sub>rew<\/sub>=0.05 och rew<sub>crit<\/sub>=0.35.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"688\" height=\"1082\" src=\"https:\/\/hiilipuu-prod-22.atm.helsinki.fi\/hiilipuu\/wp-content\/uploads\/2022\/09\/andning_T_REW.png\" alt=\"\" class=\"wp-image-280\"\/><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Efter flera \u00e5r av m\u00e4tningar f\u00e5r man en hel del av information om v\u00e4xtens andning. Vi vet ungef\u00e4r hur hastighet av v\u00e4xt andningen best\u00e4ms av de f\u00f6r\u00e4ndrade milj\u00f6f\u00f6rh\u00e5llandena. V\u00e4xt andningen f\u00f6r\u00e4ndringar exponentiell n\u00e4r temperatur \u00f6kar. Responsen p\u00e5 temperatur kan falla n\u00e4r marken vattentillg\u00e5ngen (REW) \u00e4r l\u00e5g. Dessa relationer kan uttryckas som en enkel matematisk ekvation:&hellip;&nbsp;<a href=\"https:\/\/www.hiilipuu.fi\/index.php\/sv\/2022\/09\/02\/modell\/\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Modell<\/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-279","post","type-post","status-publish","format-standard","hentry","category-artiklar"],"_links":{"self":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts\/279","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=279"}],"version-history":[{"count":1,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts\/279\/revisions"}],"predecessor-version":[{"id":281,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/posts\/279\/revisions\/281"}],"wp:attachment":[{"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/media?parent=279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/categories?post=279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hiilipuu.fi\/index.php\/wp-json\/wp\/v2\/tags?post=279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}