留民营农业生态工程能量流分析与计算

Analysis and calculation of energy flow on agro-ecological engineering of Liuminying

对北京市大兴县留民营村农业生态工程能量流进行了分析与计算。能量流的分析步骤应包括确定系统边界,分析系统结构,测定系统的能量输入和输出,绘制能流图。能量流分析对提高系统的生产力、保障农业生态工程建设的实施具有重要作用。

Taking Liuminying Village as an example,the energy flow of agro-ecological engineering is analyzed and calculated. Results show that analysis step of energy flow should include deciding system boundary,analyzing system structure,determining input and output of system energy and drewing energy flow scheme. Analyzing energy flow plays an important role on increasing productivity of system and improving the construction of agro-ecological engineering.