甘肃农业科技Issue(5)：33-35,36,4.DOI:10.3969/j.issn.1001-1463.2014.05.012
基于GIS的凉州灌区节水效率分区研究
Study on Demarcation of Water Saving Efficiency of Liangzhou Irrigation Area Based on GIS
王吉彪 1韩梅 1袁政祥 1张正鹏 1王祎1
作者信息
- 1. 甘肃省武威市凉州区农业技术推广中心，甘肃 武威 733000
- 折叠
摘要
Abstract
In this paper,liangzhou district irrigation farmland in gansu province as the object,the application of GIS data processing and spatial analysis function,with the help of county cultivated land resources management information system software, combined with analytic hierarchy process and fuzzy mathematics method and then the suitability evaluation on the water-saving efficiency;according to the cumulative curve method to determine the liangzhou district of water-saving efficiency classification scheme by calculating the evaluation index . The results showed that IFI comprehensive value of high efficiency water saving area were 0.700 036~0.922 291,IFI comprehensive value of potential water-saving area were 0.627 345~0.699 466 . Through calculation of the system the weights of index factor was of influence order of water-saving efficiency,and was in the order as irrigation reliability, slope, irrigation modulus, organic matter, barrier layer thickness, effective phosphorus, slaking layer thickness, thickness of top layer . The efficient water-saving irrigation area is slightly larger than the potential water conservation area,the administrative level in the irrigation area,larger area of efficient water conservation area was Xiying irrigation area,Yongchang irrigation area,Zamu irrigation area,larger regional area,potential of water saving was Huangyang irrigation area . Meawhile, quantitative division opened the efficiency of the different water-saving irrigation area and the suitability zoning maps water-saving efficiency of Liangzhou district irrigation farmland .关键词
地理信息系统/层次模型分析法/节水效率分区/灌区/凉州区Key words
GIS/Hierarchical analysis model/Water-saving efficiency division/Irrigat area/Liangzhou district分类
农业科技引用本文复制引用
王吉彪,韩梅,袁政祥,张正鹏,王祎..基于GIS的凉州灌区节水效率分区研究[J].甘肃农业科技,2014,(5):33-35,36,4.
