青海湖流域典型生态系统分类体系研究

研究结果表明,青海湖流域生态系统可分为9个一级生态系统、16个二级生态系统、23个三级生态系统.青海湖流域草原、冰川积雪、耕地、荒漠生态系统分布相对集中.冰川积雪生态系统主要集中在天峻县高海拔山顶地区;耕地主要分布在青海湖四周地形相对平坦地区和县城周围;荒漠生态系统集中分布在青海湖东北部及耳海附近.城镇、森林生态系统分布相对分散.

Research on Typical Ecosystem Classification System in Qinghai Lake Area

Remote sensing technology is increasingly used in mapping and monitoring ecosystems as well as providing input datasets for analysis of ecosystem functions or dynamics. Therefore, remote sensor data is used for research of typical ecosystem classification system in QinghaiLake Area. This paper buildsan ecosystem classification system adapted to this area, so that this classification system can set an example for research and construction of landscape ecosystem in China. At the same time, it lays a foundation for further research of landscape ecosystem structure, function, and pattern in QinghaiLake Area. The result show thatthe ecosystem can beclassified into three levels, including nine types in the first level category, sixteen types in the second level category, and twenty three types in the third level category. Grassland ecosystem, glacier-snow ecosystem, cultivated land ecosystem, and desert ecosystem are concentrated distributedrelatively. But urban ecosystem and forest ecosystem are dispersing distributed relatively.