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一、前言农户是组成宏观农业生态系统的基本子系统。显然,优化农户生态系统结构、强化其功能是我国生态农业研究、建设的重要内容和立足点。近年来,各种模式的生态农户大量涌现,更有必要定量分析和定量优化农户生态系统结构,并进一步提出农户生态系统定量优化的一般原理,探索其优化的基本方法。为此,笔者
I. Preface Farmers are the basic subsystems that make up the macroscopic agro-ecosystem. Obviously, optimizing the structure of rural ecosystem and strengthening its functions are the important contents and standpoints of the research and construction of ecological agriculture in China. In recent years, a large number of eco-farmers of all kinds have emerged in large numbers. It is even more necessary to quantitatively analyze and quantitatively optimize the structure of farmers ’eco-systems. Furthermore, the general principles of quantitative optimization of peasant households’ ecosystems are put forward and the basic methods for their optimization are explored. To this end, the author