Liu Xuelu, Ren Jizhou
Department of Resource and Environment, Gansu Agricultural University, Lanzhou 730070.
Ying Yong Sheng Tai Xue Bao. 2002 Aug;13(8):979-84.
The fundament of system coupling is heterogeneity, and the basic prerequisite is that there are connective corridors in the same type between ecosystems. The landscape ecological mechanism of system coupling is the spatial difference of non-biotic environment and the heterogeneity caused by disturbances. The force or energy of system coupling is disturbances. From in the view of landscape ecology, system coupling is the merging process of different landscape elements between different landscape ecosystems followed by the process of character changing of landscape elements with scale changing. Based on the essence of disturbances, system coupling can be divided into two types as natural system coupling and artificial system coupling. Natural system coupling is the base of artificial system coupling, and hence, the enhance of eco-productivity of coupling system is based on the optimization of artificial system coupling.
系统耦合的基础是异质性，其基本前提是生态系统之间存在同类连接廊道。系统耦合的景观生态机制是非生物环境的空间差异以及干扰导致的异质性。系统耦合的动力或能量是干扰。从景观生态学角度看，系统耦合是不同景观生态系统间不同景观要素的融合过程，随后是景观要素特征随尺度变化的过程。基于干扰的本质，系统耦合可分为自然系统耦合和人工系统耦合两类。自然系统耦合是人工系统耦合的基础，因此，耦合系统生态生产力的提高基于人工系统耦合的优化。
