{"version":"1.0","provider_name":"For\u00eat.Nature","provider_url":"https:\/\/foretnature.be\/en","author_name":"foretnature","author_url":"https:\/\/foretnature.be\/en\/author\/foretnature\/","title":"Lumi\u00e8re sur : \u00ab Les for\u00eats anciennes \u00bb ! - For\u00eat.Nature","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"qsXt9nskAh\"><a href=\"https:\/\/foretnature.be\/en\/resume-foret-mail\/lumiere-sur-les-forets-anciennes\/\">Lumi\u00e8re sur : \u00ab Les for\u00eats anciennes \u00bb !<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/foretnature.be\/en\/resume-foret-mail\/lumiere-sur-les-forets-anciennes\/embed\/#?secret=qsXt9nskAh\" width=\"600\" height=\"338\" title=\"&#8220;Lumi\u00e8re sur : \u00ab Les for\u00eats anciennes \u00bb !&#8221; &#8212; For\u00eat.Nature\" data-secret=\"qsXt9nskAh\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\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<\/script>","description":"Carte de Cassini (\u00e9chelle au 1\/86 500). \u00c0\u00a0priori la plus ancienne (1749-1790) des sources d\u2019informations fiables quand \u00e0 la continuit\u00e9 de l&rsquo;\u00e9tat bois\u00e9\u00a0depuis une date de r\u00e9f\u00e9rence. Les for\u00eats fran\u00e7aises ont doubl\u00e9 de surface depuis le d\u00e9but du XIXe si\u00e8cle. Ce qui implique qu\u2019au moins pour la moiti\u00e9 d\u2019entre elles, il s\u2019agit d\u2019anciennes terres cultiv\u00e9es, [&hellip;]"}