首页> 外文会议>2008世界草地与草原大会论文集 >The challenge of managing key supporting ecosystem services in complex land tenure/land use systems-the C cycle in Mexican semiarid grasslands
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The challenge of managing key supporting ecosystem services in complex land tenure/land use systems-the C cycle in Mexican semiarid grasslands

机译:在复杂的土地使用权/土地利用系统中管理关键的支持生态系统服务的挑战-墨西哥半干旱草原的C循环

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@@Introduction The grassland biome covers 20% of the arid/semiarid region in Northern Mexico.Bouteloua gracilis is a keystone species with respect to providing key ecosystem services of these grasslands.Most grassland occurs on communal land,which lacks sustainable livestock management causing severe plant cover reduction and soil erosion,in turn jeopardizes the cycling of nutrients and water,i.e.critical supporting ecosystem services responsible for the functioning of the natural and human systems of this region.Seventy percent of primary productivity is allocated belowground,thus grassland soils represent significant carbon (C) stores.The C storage is important both in the local context for the functioning of the production systems of subsistence small houshold communities and in the global context for regulating the global climate system.
机译:@@简介草地生物群系覆盖了墨西哥北部干旱/半干旱地区的20%。Boutelouagracilis是为这些草地提供关键生态系统服务的重要物种。大多数草地发生在公共土地上,缺乏可持续的牲畜管理,造成严重的植物的覆盖减少和土壤侵蚀,反过来危害营养物质和水的循环,即对该区域的自然和人类系统起作用的至关重要的支持性生态系统服务。百分之七十的初级生产力分配在地下,因此草原土壤占重要地位。碳储存在当地对于维持生计的小型家庭社区的生产系统的功能以及在全球调节全球气候系统方面都非常重要。

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