{"id":82,"date":"2020-08-13T10:44:26","date_gmt":"2020-08-13T10:44:26","guid":{"rendered":"https:\/\/site1.ctfc.cat\/?page_id=82"},"modified":"2020-09-22T13:30:06","modified_gmt":"2020-09-22T13:30:06","slug":"les-pastures-i-el-segrest-de-carboni","status":"publish","type":"page","link":"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/les-pastures-i-el-segrest-de-carboni\/","title":{"rendered":"Les pastures i el segrest de carboni"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"916\" height=\"634\" src=\"https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/09\/image-2.png\" alt=\"\" class=\"wp-image-119\" srcset=\"https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/09\/image-2.png 916w, https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/09\/image-2-300x208.png 300w, https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/09\/image-2-768x532.png 768w\" sizes=\"auto, (max-width: 916px) 100vw, 916px\" \/><\/figure>\n\n\n\n<p>Les pastures proveeixen de multitud de bens i serveis. Fan una funci\u00f3 clau en la provisi\u00f3 d\u2019aliments i s\u00f3n un <strong>recurs econ\u00f2mic<\/strong> rellevant a Catalunya, prenent especial rellev\u00e0ncia en el medi rural i els ambients de muntanya. A m\u00e9s, s\u00f3n ecosistemes d&#8217;elevada <strong>biodiversitat<\/strong>, i formen un mosaic paisatg\u00edstic d\u2019<strong>alt valor cultural<\/strong>. A m\u00e9s regulen els <strong>cicles <\/strong>biogeoqu\u00edmics com \u00e9s el <strong>del carboni, el nitrogen i l\u2019aigua<\/strong>.<\/p>\n\n\n\n<p>De fet, en termes de segrest de carboni (C) i mitigaci\u00f3 del canvi clim\u00e0tic, les pastures juguen un paper fonamental en el l\u2019acumulaci\u00f3 de <strong>C org\u00e0nic al s\u00f2l<\/strong>. Representen el 30% de la superf\u00edcie terrestre&nbsp;i gr\u00e0cies una acumulaci\u00f3 important de mat\u00e8ria org\u00e0nica especialment procedent de les arrels, arribant a <strong>emmagatzemar C org\u00e0nic al s\u00f2l en quantitats comparables als boscos<\/strong>.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"378\" height=\"378\" src=\"https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/08\/imatge-2.png\" alt=\"\" class=\"wp-image-85\" srcset=\"https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/08\/imatge-2.png 378w, https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/08\/imatge-2-300x300.png 300w, https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/08\/imatge-2-150x150.png 150w\" sizes=\"auto, (max-width: 378px) 100vw, 378px\" \/><figcaption>Carboni total per ecosistema. Adaptat de White et al. (2002).<\/figcaption><\/figure><\/div>\n\n\n\n<p>Ara b\u00e9, el contingut de C org\u00e0nic al s\u00f2l d&#8217;un prat en concret est\u00e0 condicionat per un <strong>equilibri <\/strong>entre la <strong>productivitat,<\/strong> per part de les plantes, i la <strong>descomposici\u00f3 i\/o extracci\u00f3 de la mat\u00e8ria org\u00e0nica<\/strong>.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/08\/imatge-1.png\" alt=\"\" class=\"wp-image-84\" width=\"586\" height=\"148\"\/><\/figure><\/div>\n\n\n\n<p>I aquestes alhora estan regulades per una s\u00e8rie de variables que interaccionen de forma jer\u00e0rquica. En un primer nivell, estan les variables del tipus <strong>geof\u00edsic<\/strong>, com per exemple el clima o el tipus de s\u00f2l, que influeixen a una escala regional i de paisatge respectivament. En un segon nivell estan les variables <strong>bioqu\u00edmiques<\/strong>, com per exemple els nutrients del s\u00f2l o el farratge i que tenen un abast m\u00e9s local. I finalment, est\u00e0 la <strong>gesti\u00f3<\/strong>, la qual t\u00e9 un <strong>abast transversal<\/strong>, ja que pot incidir sobre el C del s\u00f2l de forma directa o indirecta a trav\u00e9s d\u2019interaccions amb altres variables i a diferents escales, <strong>essent de fet, la \u00fanica variable sobre la qual es pot incidir directament.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"524\" height=\"461\" src=\"https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/08\/imatge.png\" alt=\"\" class=\"wp-image-83\" srcset=\"https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/08\/imatge.png 524w, https:\/\/pastucar.ecofun.ctfc.cat\/wp-content\/uploads\/2020\/08\/imatge-300x264.png 300w\" sizes=\"auto, (max-width: 524px) 100vw, 524px\" \/><figcaption>Variables que incideixen sobre el C org\u00e0nic del s\u00f2l. Adaptat de de Rodr\u00edguez et al., (2020).<\/figcaption><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Les pastures proveeixen de multitud de bens i serveis. Fan una funci\u00f3 clau en la provisi\u00f3 d\u2019aliments i s\u00f3n un recurs econ\u00f2mic rellevant a Catalunya, prenent especial rellev\u00e0ncia en el medi rural i els ambients de muntanya. A m\u00e9s, s\u00f3n ecosistemes d&#8217;elevada biodiversitat, i formen un mosaic paisatg\u00edstic d\u2019alt valor cultural. A m\u00e9s regulen els &#8230; <a title=\"Les pastures i el segrest de carboni\" class=\"read-more\" href=\"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/les-pastures-i-el-segrest-de-carboni\/\">Llegiu m\u00e9s <span class=\"screen-reader-text\">Les pastures i el segrest de carboni<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-82","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/wp-json\/wp\/v2\/pages\/82","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/wp-json\/wp\/v2\/comments?post=82"}],"version-history":[{"count":7,"href":"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/wp-json\/wp\/v2\/pages\/82\/revisions"}],"predecessor-version":[{"id":129,"href":"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/wp-json\/wp\/v2\/pages\/82\/revisions\/129"}],"wp:attachment":[{"href":"https:\/\/pastucar.ecofun.ctfc.cat\/index.php\/wp-json\/wp\/v2\/media?parent=82"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}