四川大学学报（自然科学版）2018，Vol.55Issue(3)：625-631,7.DOI:10.3969/j.issn.0490-6756.2018.03.035
基于ArcGIS和熵值法的四川省各市州耕地利用集约度时空差异研究
The research of the cities' temp-spatial disparity of arable land use intensity in Sichuan province based on entropy and ArcGIS
摘要
Abstract
Based on the Entropy method and the complicated landform in Sichuan Province ,an evaluation system containing four criteria layers and nine indexes was established in this paper ,the four criteria layers are input intensity ,utilization intensity ,output intensity and sustainability intensity .T he arable land use intensities in the year 2006-2016 has been calculated every five years .T he SDE w as utilized to reveal the spatial disparities among cities and their changes with ArcGIS10 .2 .The research suggested that :(1) T he arable land use intensities are higher in those cities located in the middle and east of Si-chuan Province ,mainly on the Chengdu Plain ,and the centers of the three SDEs are all in the north-western Ziyang City ,and moved 48 km to southeast for most .(2) Between the year 2006 and 2011 ,the values of intensity in northeast-southwestern cities had been higher than those in the other directions , and the disparities had decreased slightly all the way to 2016 .(3) The standard deviations in 2006 ,2011 and 2016 are 3 .286 ,2 .474 and 1 .961 respectively ,w hich suggested a more balanced intensive arable land use betw een regions in Sichuan Province .关键词
耕地利用集约度/熵值法/标准差椭圆/四川省各市州Key words
Arable land use intensity/The entropy method/Standard deviational ellipse/Cities in Si-chuan province分类
生物科学引用本文复制引用
赵曦,陈静..基于ArcGIS和熵值法的四川省各市州耕地利用集约度时空差异研究[J].四川大学学报（自然科学版）,2018,55(3):625-631,7.基金项目
国家自然科学基金(41501444) （41501444）
