绿洲农业生态系统的结构功能及效益分析——以甘肃武威绿洲为例

ANALYSES ON STRUCTURES,FUNCTIONS AND BENEFITS OF THE OASIS AGRO-ECOSYSTEMS ——A Case Study of Wuwei

本文综合分析了武威绿洲农业生态系统的结构、功能和效益，认为：其结构不合理，体现出以商品粮生产为主的偏农综合绿洲的结构特征；其功能低下，产投比为１．６０∶１；效益不佳，经济、社会、生态效益失调。据此提出了促进绿洲农业持续发展的几点建议。

The paper deals with the agro-ecosystem of the Wuwei Oasis:(1)Structures,including landuse structure,water use structure,output value structure etc.(2)Functions,including energy input and output,the structure of input energies etc.;(3)Benefits,including ecologic,economic and social benefits.The paper have put farward a sustainable development strategy and a series of measures for the Wuwei Oasis.