{"id":1124,"date":"2004-12-03T10:09:00","date_gmt":"2004-12-03T09:09:00","guid":{"rendered":"https:\/\/kids.esa.int\/disappearing_forests\/"},"modified":"2026-10-08T00:36:16","modified_gmt":"2026-10-07T22:36:16","slug":"disappearing_forests","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/pt\/disappearing_forests\/","title":{"rendered":"Florestas em extin\u00e7\u00e3o"},"content":{"rendered":"
\n

As florestas cobrem quase um ter\u00e7o da superf\u00edcie terrestre do mundo. Muitas delas s\u00e3o t\u00e3o vastas que a \u00fanica forma de as mapear e estudar \u00e9 a partir do espa\u00e7o.<\/p>\n<\/div>\n

As florestas n\u00e3o s\u00e3o apenas fontes valiosas de madeira e combust\u00edvel, mas tamb\u00e9m abrigam muitos tipos de plantas e animais.<\/p>\n

As \u00e1rvores tamb\u00e9m impedem que o vento e a chuva levem o solo, modificam o clima local e abrandam as altera\u00e7\u00f5es clim\u00e1ticas ao armazenarem carbono.<\/p>\n

Infelizmente, as florestas est\u00e3o a diminuir rapidamente. Todos os anos, enormes \u00e1reas s\u00e3o destru\u00eddas pela atividade humana.<\/p>\n

Ao sobrevoarem a regi\u00e3o, os sat\u00e9lites conseguem obter uma vis\u00e3o detalhada de toda uma floresta numa quest\u00e3o de dias. Constituem a \u00fanica forma r\u00e1pida e f\u00e1cil de cartografar as florestas em constante mudan\u00e7a e de fornecer atualiza\u00e7\u00f5es regulares sobre o seu estado.<\/p>\n

\"Deforestation
Desfloresta\u00e7\u00e3o em Rond\u00f4nia, Brasil<\/figcaption><\/figure>\n

As naves espaciais ERS e Envisat da ESA est\u00e3o equipadas com um radar de imagem capaz de ver atrav\u00e9s das nuvens para revelar altera\u00e7\u00f5es na superf\u00edcie terrestre.<\/p>\n

\u00c9 utilizado um scanner de luz vis\u00edvel e infravermelha para estudar o crescimento das plantas e medir as temperaturas superficiais. Tamb\u00e9m deteta inc\u00eandios utilizados para limpar os campos.<\/p>\n

Os sat\u00e9lites conseguem at\u00e9 distinguir diferentes tipos de \u00e1rvores e indicar o seu estado de sa\u00fade.<\/p>\n

Os mapas baseados em imagens de sat\u00e9lite ajudam os gestores e as autoridades locais a proteger e preservar as florestas, cuja \u00e1rea est\u00e1 a diminuir.<\/p>","protected":false},"excerpt":{"rendered":"

Forests cover almost a third of world’s land surface. Many of them are so vast that the only way to map and study them is from space. Forests are not […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2004\/12\/deforastation_012\/17890539-2-eng-GB\/deforastation_01.jpg","esa_banner_description":"","esa_banner_credit":"AP Photo\/Lynne Slandky","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/12\/deforastation_012","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[42,10,43],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1124","post","type-post","status-publish","format-standard","hentry","category-earth","category-learn","category-protecting-earth","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/1124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/comments?post=1124"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/1124\/revisions"}],"predecessor-version":[{"id":4860,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/1124\/revisions\/4860"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/media?parent=1124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/categories?post=1124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/tags?post=1124"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/panel?post=1124"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/language?post=1124"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/age?post=1124"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/duration?post=1124"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/resource_type?post=1124"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/audience?post=1124"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/wf_post_folders?post=1124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}