{"id":99,"date":"2021-11-04T14:02:39","date_gmt":"2021-11-04T13:02:39","guid":{"rendered":"https:\/\/www.eovision.at\/esa-schoolatlas\/?page_id=99"},"modified":"2025-03-19T10:44:11","modified_gmt":"2025-03-19T09:44:11","slug":"biosphere","status":"publish","type":"page","link":"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/fr\/biosphere\/","title":{"rendered":"Biosphere"},"content":{"rendered":"

Biosphere<\/h2>\n


\nThe term biosphere (from Greek bios<\/em> for life) comprises all parts of the system Earth in which life exists as well as all living beings – including man and all plants and animals used by them.<\/p>\n

Life on Earth is concentrated mainly on the solid surfaces of Earth and the upper parts of the oceans. However, highly specialized lifeforms have been found in the deepest parts of the oceans and in the Earth crust in depths of 5 kilometers, too. The total mass of life on Earth has been estimated to exceed 1,800 billion tons. With 2,200 million tons a bit more than one thousandth of the total mass is attributed to animals.<\/p>\n

Biodiversity<\/a> is a key aspect of the biosphere, as a stable and preferably high number of different species is important for the stability of ecosystems. Therefore nature protection activities aim at preserving a high biodiversity despite manifold negative impacts of human activities on the system Earth.<\/p>\n

 <\/p>\n

Select your Case Study:<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Biomass<\/a> – distribution of life on Earth<\/strong><\/th>\n<\/tr>\n
\"\"<\/a><\/td>\nGdansk<\/a>, Poland
\nAbundance of nutrients and high water temperatures can lead to increased phytoplankton<\/a> growth and to algal blooms.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nTaihu Lake<\/a>, China
\nHigh nutrient concentrations caused by human landuse can destabilise ecosystems.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nLancaster<\/a>, U.S.A.
\nSuperblooms are a rare natural event, when sufficient water in an otherwise arid<\/a> environment makes a desert bloom.<\/td>\n<\/tr>\n
Agriculture – Irrigation patterns<\/strong><\/th>\n<\/tr>\n
\"\"<\/a><\/td>\nHa’il<\/a>, Saudi Arabia
\nFossile groundwater makes crops in the desert possible.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nNew Valley<\/a>, Egypt
\nAgriculture in the desert is enabled by diverting water from the Nile River.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nEl Ejido<\/a>, Spain
\nLarge area greenhouses produce vegetables for the European markets.<\/td>\n<\/tr>\n
Agriculture – Droughts and desertification<\/strong><\/th>\n<\/tr>\n
\"\"<\/a><\/td>\nLake Oroville<\/a>, U.S.A.
\nAgriculture in California heavily depends on water from storage dams.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nAlmendra Dam<\/a>, Spain
\nIn the arid southwest of Europe,agriculture is challenged by repeated droughts.<\/td>\n<\/tr>\n
Deforestation – conflict with nature protection<\/strong><\/th>\n<\/tr>\n
\"\"<\/a><\/td>\nSanta Lucia<\/a>, Bolivia
\nIn the Amazon Basin, reclamation of agricultural land is often related to deforestation.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nMadre de Dios<\/a>, Peru
\nLoss of forests has many reasons, mining activities are one of them.<\/td>\n<\/tr>\n
Forest fires<\/strong><\/th>\n<\/tr>\n
\"\"<\/a><\/td>\nBritish Columbia<\/a>, Canada
\nForests are more and more threatened by fires.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nSoutheast Australia<\/a>, Australia
\nIn Southeast Australia, extended bushfires are a common threat to life.<\/td>\n<\/tr>\n
Fishery and aquaculture<\/a><\/strong><\/th>\n<\/tr>\n
\"\"<\/a><\/td>\nTianjin<\/a>, China
\nLarge areas along the coasts of China are reshaped to produce fish and other marine products.<\/td>\n<\/tr>\n
Natural heritage – nature protection zones<\/strong><\/th>\n<\/tr>\n
\"\"<\/a><\/td>\nDoñana National Park<\/a>, Spain
\nThe close vicinity of agricultural land and the national park pose challenges to the management of both.<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nBissagos Archipelago<\/a>, Bissago
\nThe Bissago Islands are a valuable natural heritage featuring mangroves, forests, and marine ecosystems.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Biosphere The term biosphere (from Greek bios for life) comprises all parts of the system Earth in which life exists as well as all living beings – including man and all plants and animals used by them. Life on Earth is concentrated mainly on the solid surfaces of Earth and the upper parts of the […]<\/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-99","page","type-page","status-publish","hentry"],"translation":{"provider":"WPGlobus","version":"3.0.0","language":"fr","enabled_languages":["en","es","de","fr","it"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"es":{"title":false,"content":false,"excerpt":false},"de":{"title":false,"content":false,"excerpt":false},"fr":{"title":false,"content":false,"excerpt":false},"it":{"title":false,"content":false,"excerpt":false}}},"yoast_head":"\nBiosphere - ESA Schoolatlas<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/esa-schoolatlas.eu\/esa-schoolatlas\/fr\/biosphere\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Biosphere - 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