中国农林业的结构与模式

文章概述了中国农林业发展的基本模式、结构及其建立应遵循的原则，并从物种结构、空间结构、时间结构和食物链结的４个方面对中国农林业的结构问题进行了分析。作者根据中国的气候特点和传统和种植习惯，将中国的农林业划分成５种系统类型，同时根据中国农林业的结构特点和气候带类型，分别给出了适宜热带、亚热带、暖温带等多种典型模式及配置。

The Structure and Pattern of Agroforestry in China

Agroforestry is a new branch of science of a highly practical and comprehensivenature developed in the past decade in the world.Structure and pattern are the crititcalpoints in its development,and are discussed in this paper.First the paper outlines the principles on which the structure and pattern of agroforestry in China are based.Then an analysisis made of the structure in four aspects:species composition,space structure,time structureand food chain.According to the particular climate in China and the traditional farmingpractice,agroforestry in China is classified into five systems:farm crop and forest tree interplanting system(agrisilviculture);forest and animal husbandry management system(silvo-pastoral);forming,forest and fishery management system(agrosilvopastoral);farming,forest and animal husbandry management system(agua-silviculture) and multi-purposeforest management system(multi-use-woodland).At the same time,according to thestructural traits of agroforestry in China and the types of climatic zones,a variety of typicpatterns and dispositions are given,which are adapted to tropical,subtropical and warmtemperate zones.These patterns fully reveal the traits of aproforestry in China and the development direction and are in conformity with the traditional farming practice and forestationby farmers and will surely be popularized.