绿洲空间结构多目标决策的密切值分析研究

STUDY ON SPATIAL STRUCTURE OF OASES WITH CLOSE VALUE METHOD OF MULTI——OBJECTIVE DECISION

本文以黑河中游绿洲为例,采用多目标决策方案优选的密切值法,从若干个参与优化的绿洲空间结构备选方案中,求解出了空间结构优化的最满意方案。

The spatial structure of oases is the main content for the study on the ecological economy of oases. It is an attempt to carry out the analyses of optimization on spatial structure of oases with the close value method of multi—objective decision. Taking the oases in the middle reaches of Heihe River in Gansu Province as an example, an optimal programme of spatial structure of oases was obtained from many participated programmes with the method. Then, the water resource structure. water use structure. labour structure. and the gross output vaiue of industry and agriculture corresponding with them were evaluated from the optimal programme. It provides an important basis for overall plan of ecological economy in the oases along the Heihe River.Certainly. the optimal spatial structure is a moving point with many complicated related factors, and changes with the development of society. All of the related factors can not be considered at the same time with the close value model. For instance. the variation of grain yield. shift of labour in rural area. raw material for heavy industrial production, etc. do not be considered, which is the limitation in this study.