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中国农学通报 ›› 2014, Vol. 30 ›› Issue (36): 198-203.doi: 10.11924/j.issn.1000-6850.2014-1034

所属专题: 农业地理 耕地保护

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

基于信息熵的庄浪县土地利用结构变化及其驱动力分析

吴婷婷,刘学录   

  1. 甘肃农业大学,甘肃农业大学资源与环境学院
  • 收稿日期:2014-04-10 修回日期:2014-11-27 接受日期:2014-10-15 出版日期:2015-03-20 发布日期:2015-03-20
  • 通讯作者: 刘学录

Analysis on Information Entropy of Land Use Structure Change and Its Driving Forces in Zhuanglang County

  • Received:2014-04-10 Revised:2014-11-27 Accepted:2014-10-15 Online:2015-03-20 Published:2015-03-20

摘要: 为研究庄浪县土地利用结构动态变化情况,促进土地资源的合理利用和可持续发展,基于庄浪县1997—2012年土地利用变更数据以及经济社会统计数据,采用信息熵、均衡度和优势度原理,分析庄浪县土地利用结构的动态演变特征,并运用主成分分析方法对影响庄浪县土地利用结构动态演变的驱动力进行分析。结果表明:1997—2012年,庄浪县土地利用结构信息熵总体呈先上升后下降再上升的波浪式趋势变化,表明各区域的土地利用系统仍处于较大程度的开发中。耕地、林地及未利用地面积所占比例的高低,是影响庄浪县土地利用结构信息熵的主要因素。人口经济发展状况、城市化、产业结构是庄浪县土地利用结构变化的主要驱动力。

关键词: 产量, 产量

Abstract: In order to research on the dynamic changes of land use structure and make land use more reasonable and sustainable, this paper supported by the theory of information entropy, equilibrium degree and dominance principle degree, characteristics of land use structure dynamic evolution of Zhuanglang County was analyzed, and driving forces of land use structure change was analyzed by using principal component analysis methods based on the land use change date and economic and social data of Zhuanglang County from 1997 to 2012. The results showed that information entropy of the land use structure in Zhuanglang County had increased first, and then decreased, until eventually and continuously increased during the research period from the year of 1997 to 2012, which indicated that the regional land use system was still in the large degree of development. The percentage of cultivated land, forest land and unused land were the main factors which influenced information entropy changes of land use structure in Zhuanglang. The factors of economic development, population growth, urbanization and industrial structure were the important driving forces of land use structure change in Zhuanglang.