ANALYSIS ON HIE GRADIENT OF SPACIAL DISTRIBUTION OF AGROECOSYSTEM

On the taste of the field investigation and relative information from 107 town-villages in Shenyang municipality, this paper deals With the gradient of special distribution of the agroecasystcm. Principal components is applied in the analysis. The results show that a ringlikc pattern of distribution is shaped around urban districts of Shenyang under the comprehensive influence of natural and social-economic conditions, and is divided into four types of agroccosystcm, i. e. city, surburbs, outer surburbs and rural respectively. Moreover, according to gradient laws, the problems about the strategics for agroccosystcm development are discussed. The study can be used to provide a reference for the agricultural research between tiAvn and countryside.