{"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\/da\/disappearing_forests\/","title":{"rendered":"Skove, der forsvinder"},"content":{"rendered":"
\n

Skove d\u00e6kker n\u00e6sten en tredjedel af verdens landareal. Mange af dem er s\u00e5 store, at den eneste m\u00e5de at kortl\u00e6gge og unders\u00f8ge dem p\u00e5 er fra rummet.<\/p>\n<\/div>\n

Skove er ikke blot v\u00e6rdifulde kilder til tr\u00e6 og br\u00e6ndsel, men de er ogs\u00e5 levested for mange forskellige arter af planter og dyr.<\/p>\n

Tr\u00e6er forhindrer desuden vind og regn i at skylle jord v\u00e6k, de p\u00e5virker det lokale klima og bremser klimaforandringerne ved at lagre kulstof.<\/p>\n

Desv\u00e6rre svinder skovene hurtigt ind. Hvert \u00e5r \u00f8del\u00e6gges enorme omr\u00e5der som f\u00f8lge af menneskelig aktivitet.<\/p>\n

N\u00e5r satellitterne flyver over omr\u00e5det, kan de inden for f\u00e5 dage danne sig et detaljeret billede af en hel skov. De udg\u00f8r den eneste hurtige og nemme m\u00e5de at kortl\u00e6gge de stadigt skiftende skove p\u00e5 og levere regelm\u00e6ssige opdateringer om deres tilstand.<\/p>\n

\"Deforestation
Skovrydning i Rond\u00f4nia, Brasilien<\/figcaption><\/figure>\n

ESA\u2019s rumfart\u00f8jer ERS og Envisat er udstyret med et billedradarsystem, der kan se igennem skyerne og afsl\u00f8re \u00e6ndringer i landoverfladen.<\/p>\n

En scanner, der registrerer lys i det synlige og infrar\u00f8de spektrum, bruges til at unders\u00f8ge plantev\u00e6kst og m\u00e5le overfladetemperaturer. Den registrerer ogs\u00e5 brande, der anvendes til at rydde marker.<\/p>\n

Satellitter kan endda skelne mellem forskellige tr\u00e6arter og vise, hvor sunde de er.<\/p>\n

Kort baseret p\u00e5 satellitbilleder hj\u00e6lper ledere og lokale myndigheder med at beskytte og bevare de skove, der bliver mindre og mindre.<\/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\/da\/wp-json\/wp\/v2\/posts\/1124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=1124"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1124\/revisions"}],"predecessor-version":[{"id":4860,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1124\/revisions\/4860"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=1124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=1124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=1124"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=1124"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=1124"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=1124"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=1124"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=1124"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=1124"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=1124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}