Mountain Biodiversity, Its Causes and Function
Mountain Biodiversity, Its Causes and Function
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DOI：
10.1007/0044-7447-33.sp13.11
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发表时间：
2004-11
期刊：
影响因子：
--
通讯作者：
C. Körner
中科院分区：
文献类型：
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作者：
C. Körner
五分之一的人的人身安全和福祉以及几乎一半人的供水直接或间接地取决于山区生态系统的功能完整性，而其关键组成部分是强健的植被。世界山脉的绿色“外衣”是由专门的植物、动物和微生物组成的，它们都栖息在各种各样的微生境中。由于一座山可能在短海拔距离内拥有一系列气候不同的生命区，因此山脉是生物多样性的热点和优先保护区域。植物的根系各不相同，它们将锚固定在斜坡上，防止水土流失。土地使用和大气变化，如二氧化碳浓度升高和气候变暖，都会影响山区生物多样性。持续的集水价值取决于持续的土壤完整性，而土壤完整性又取决于多样化的植被。山区土地使用是否可持续是一个对水量和生物多样性产生影响的问题。鉴于低地人对山区的依赖，他们应该对高地表现出超出其娱乐价值的关注。
The personal safety and well-being of one fifth, and water supply for almost half of all people depend directly or indirectly on the functional integrity of mountain ecosystems, the key component of which is a robust vegetation cover. The green'coat' of the world's mountains is composed of specialized plants, animals and microbes, all nested in a great variety of microhabitats. Because a single mountain may host a series of climatically different life zones over short elevational distances, mountains are hot spots of biodiversity and priority regions for conservation. With their diverse root systems, plants anchor soils on slopes and prevent erosion. Both landuse and atmospheric changes such as elevated CO2and climatic warming affect mountain biodiversity. Sustained catchment value depends on sustained soil integrity, which in turn depends on a diverse plant cover. Whether landuse in mountains is sustainable is a question of its consequences for water yield and biodiversity. Given their dependence on mountains, lowlanders should show concern for the highlands beyond their recreational value.