沈阳市农业生态系统空间分布梯度的分析

ANALYSIS ON HIE GRADIENT OF SPACIAL DISTRIBUTION OF AGROECOSYSTEM

  • 摘要: 本文根据沈阳市107个乡镇的资料,采用主分量分析方法对沈阳市农业生态系统空间分布梯度进行了分析。结果表明,在地理生态环境条件和社会经济条件综合作用下,形成了以沈阳市区为中心的环状分布梯度格局,依次分成城市型、近郊型、远郊型和农村型农业生态系统;并结合空间分布梯度规律探讨了不同类型农业生态系统发展战略问题,旨在对城乡结合部农业研究提供参考,同时,为地方政府领导决策服务。

     

    Abstract: 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.

     

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