Ecosystem A basic unit of ecology defined as a system of living organism interacting with the physical,chemical,biological and sociological environment. A conceptual tool and it has no physical boundary. 英国植物生态学家A.G.Tanslay1935 生物与环境构成一个不可分割的整体 8 8 A basic unit of ecology defined as a A basic unit of ecology defined as a system of living organism interacting system of living organism interacting with the physical, chemical, biological with the physical, chemical, biological and sociological environment. and sociological environment. A conceptual tool and it has no A conceptual tool and it has no physical boundary. physical boundary. •英国植物生态学家A.G. Tanslay 1935 •生物与环境构成一个不可分割的整体 Ecosystem