青海草地农业生态系统内系统耦合性分析

草地生态系统是最大的陆地生态系统，包括草地植物生态系统、动物生态系统和人类社会系统等子系统。如果各子系统间耦合性高，系统则表现为结构合理、系统稳定和子系统间物质流、信息流和能流等功能的作用效率高。青海省草地资源丰富，近年来由于不合理管理下，子系统之间相悖性表现得尤为突出，阻碍了当地草业和畜牧业的发展。利用系统耦合理论，建立系统间的和谐关系，实现草地畜牧业高效、稳定地发展。

The Analysis of the Coupling Capacity of Grassland Agricultural Eco-system in Qinghai

The grassland agricultural ecosystem, including the primary production system, the second production system, social system and so on, is the biggest among the terrestrial ecosystems. If only the coupling capability of ecosystems has good enough, it can facilitate the material current, energy current and information current effectively, and systematically to fabricate its compositions. But under the irrational management of grassland in Qinghai province, the inverse relationship among the sub-ecosystems curb the animal husbandry development further and social harmony. Utilization of the theory of ecosystem coupling in the grassland system construction will help us develop the sustainable and effective grassland agricultural ecosystem.