洛南县农田生态系统结构、功能分析

Structure and function of Luonan county field agro-ecosystem

陕南山区的粮食生产主要集中于河谷盆地之中，洛南盆地作为一个典型，是秦岭山区的主要粮食产地之一．本文在结构分析的基础上，用力能学的研究方法，讨论了洛南县农田生态系统的功能特点，并对不同类型的系统功能进行了综合评判．

A field agro-ecosystem is a complex system. Energy transformation is it's main function which produces foods people live on. Based on the structural analysis of the system in Luonan county, the function is discussed. Some characters of the energy flow in the field system are described by calculation.