{"version":"1.0","provider_name":"Disturbances and Biogeochemistry for Ecosystem Services","provider_url":"https:\/\/blogs.uef.fi\/disturbances-and-biogeochemistry","title":"ArcticFire - Disturbances and Biogeochemistry for Ecosystem Services","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"G7FaoEpeoP\"><a href=\"https:\/\/blogs.uef.fi\/disturbances-and-biogeochemistry\/arcticfire\/\">ArcticFire<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/blogs.uef.fi\/disturbances-and-biogeochemistry\/arcticfire\/embed\/#?secret=G7FaoEpeoP\" width=\"600\" height=\"338\" title=\"&#8220;ArcticFire&#8221; &#8212; Disturbances and Biogeochemistry for Ecosystem Services\" data-secret=\"G7FaoEpeoP\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/blogs.uef.fi\/disturbances-and-biogeochemistry\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","description":"The project\u00a0\u201cLong term effects of fire on carbon and nitrogen pools and fluxes in the arctic permafrost and subarctic forests\u201d,\u00a0(2015 \u2013 2018) is funded by the\u00a0Academy of Finland\u00a0under the Arctic Research Programme (ARKTIKO).Permafrost melting threatens to release vast amounts of carbon to the atmosphere, but exact interactions between ecosystem disturbances, permafrost melting, soil organic matter (SOM) decomposition and vegetation productivity are not known. The acceleration of biological processes such as decomposition and below ground carbon input and carbon allocation of trees and associated priming effects following forest fires in the arctic region may lead to large changes in CO2, CH4\u00a0and N2O fluxes. These processes evidently alter the C and N turnover rate of the remaining SOM, which may ultimately affect the net primary production (NPP) of the forest ecosystem causing feedback mechanisms to carbon uptake and eventually atmospheric CO2 concentration.AIMSWe will study how the forest fires affect the biologically active layer on top of the permafrost by measuring biogeochemical properties of the soil e.g. soil carbon and nitrogen content, microbial species composition as well as greenhouse gas fluxes.We will also measure the changes in soil surface reflectance and the depth of the permafrost layerFinally, we will combine the measured data for developing and parameterizing process based ecosystem models to predict the effect of forest fires on forest carbon and nitrogen dynamics in the arctic.","thumbnail_url":"https:\/\/blogs.uef.fi\/disturbances-and-biogeochemistry\/wp-content\/uploads\/sites\/178\/2022\/02\/Arcticfire1.jpg"}