北京市生态涵养区生态系统服务供给与流动的能值分析
马程, 王晓玥, 张雅昕, 李双成

Emergy analysis of ecosystem services supply and flow in Beijing ecological conservation area
Cheng MA, Xiaoyue WANG, Yaxin ZHANG, Shuangcheng LI
表2 系统组分互相影响矩阵示意
Tab. 2 Impact matrix showing interaction between components and indices that measure systemic components
能量方向 组分1 组分2 组分3 组分4··· 主动加和(AS)
组分1
组分2
组分3
组分4
···
被动加和(PS)
总和(AS+PS)
比值Q(AS/PS)