| 基于空间洛伦茨曲线的县域土地利用结构分析 |
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| 引用本文： | 杨婷,罗红霞,刘光鹏,郑才贵.基于空间洛伦茨曲线的县域土地利用结构分析[J].湖北农业科学,2016(7):1691-1696. |
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| 作者姓名： | 杨婷 罗红霞 刘光鹏 郑才贵 |
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| 作者单位： | 1. 西南大学地理科学学院,重庆,400715;2. 重庆市国土资源和房屋勘测规划院,重庆,400002 |
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| 基金项目： | 国家自然科学基金项目(104220-40102612) |
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| 摘 要： | 利用2011年重庆市忠县土地利用数据,构建9种土地利用现状类型数据体系,基于土地利用信息熵与空间洛伦茨曲线相结合的方法,对忠县28个乡镇的土地利用结构进行基于县域尺度下的空间分析和研究。结果表明,忠县土地利用信息熵呈现出明显的差异性,并且从空间角度将全区分成信息熵高值区、信息熵中值区、信息熵低值区,平均信息熵值为1.24 Nat,信息熵最高值为1.63 Nat,信息熵最低值为0.69 Nat;重庆市忠县耕地、建设用地、林地的分布最为均衡分散,水域、未利用土地分布则相对集中,充分利用各乡镇的优势资源发展特色产业,从而优化全县土地利用结构,推进土地的集约利用。
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| 关 键 词： | 土地利用结构 信息熵 空间洛伦茨曲线 县域尺度 重庆市 |
Analysis on Structure of Land Use on the Basis of Lorenz Curves in County Scale |
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| Abstract: | The data system of nine kinds of land use types were set up using the land use data of Zhong county in 2011. Based on the combine methods of information entropy and Lorenz curve, the land use structure of 28 villages and towns of county scale in Zhong county were analyzed and researched in spatial level. The results showed that, information entropy of the study area presented the obvious differences, and Zhong county could be divided into three districts from the perspective of space, including high information entropy district, middle information entropy district and low information entropy district. The average information entropy was 1.24 Nat, the highest value was 1.63 Nat, and the minimum value was 0.69 Nat. The distribution of cultivated land, construction land, forest land decentralized the most balanced in Zhong county, while the dis-tribution of water area and unused land was relatively concentrated. Making full use of the township of advantage resources and developing characteristic industry to optimize the land use structure of the county and promote the intensive use of land. |
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| Keywords: | land use structure information entropy Lorenz curve county scale Chongqing city |
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