为探讨农田林网化所形成农田生态系统的结构与功能,我们于1979年对河北省深县后屯大队的农田林网进行了较系统的观测研究。从鉴定现有农田林网防护效能入手,对农田林网调节小气候、改变地方气候作用、农田生态系统中诸因素相互影响、相互制约的关系等问题进行了探讨,为建立新的农业经济结构提供理论依据。 In order to explore the structure and function of farmland ecosystem formed by the farmland network, we conducted a systematic observation on the farmland forest network of Houtun Brigade in Shenxian County, Hebei Province in 1979. From the identification of the existing farmland shelterbelt protection effectiveness, this paper discusses the issues such as microclimate adjustment of farmland shelterbelts, change of local climate, interaction of various factors in farmland ecosystem and mutual restraint, and so on, in order to establish a new agricultural economic structure Theoretical basis.