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区域土地利用动态变化分析的新方法研究——以北京市为例

发表时间:2009-08-31  浏览量:1785  下载量:865
全部作者: 蒙莉娜,郑新奇
作者单位: 中国地质大学(北京)土地科学技术学院
摘 要: 基于2000年至2007年北京市土地利用数据,运用单一土地利用损失度、土地利用信息熵、土地利用综合指数及土地利用区位熵4个指标,定量分析北京市土地利用的动态变化。研究结果表明:1) 引入的单一土地利用损失度及土地利用区位熵指标,可以有效反映区域土地利用动态变化;2) 北京市土地利用变化程度的排序为耕地>居民点及工矿用地>林地>水域用地>未利用地>园地>交通用地>牧草地;3) 在时间变量非线性的前提下,单一土地利用损失度能较好地反映土地利用变化速率;4) 土地利用信息熵趋向于小值,表明土地利用有序度增强,土地利用趋于多样性;5) 以全国作为更高层次,各类土地利用的区位熵差异性较大,居民点及工矿用地、交通用地及园地的区位熵最大,耕地和林地与全国平均水平持平,而牧草地的区位熵最低。
关 键 词: 农业工程;区域土地利用;动态变化分析;北京
Title: A new method study on analysis of regional land-use dynamic changes: a case study in Beijing
Author: MENG Lina, ZHENG Xinqi
Organization: School of Land Science and Technology, China University of Geosciences (Beijing)
Abstract: On the basis of land-use data, this paper adopted four indexes including single land losing degree, land-use information entropy, general index of land-use and location entropy of land-use, and quantitatively analyzed the dynamic change of land-use from 2000 to 2007 in Beijing. The results showed that: firstly, the single land losing degree and location entropy of land-use, which were introduced in this paper, reflected the regional land-use changes successfully; secondly, the sequence of change extent of land-use was cropland>industrial and residential areas>woodland>water land>virgin soil>garden plots>traffic area>grassland; thirdly, under the precondition of non-linear variable in time, single land losing degree could describe the rate of land-use change well; fourthly, the land-use information entropy showed a declining trend, which showed that the order degree of land system increased and land-use trend had diversity; and finally, taking the whole country as a higher-level region, the difference of location entropies of land-use in Beijing was large, thereinto the value of location entropies of industrial and residential areas, traffic areas and garden land were maximum, those of cropland and woodland were equal to the average level of the country, and that of grass land was minimum.
Key words: agricultural engineering; regional land-use; analysis of dynamic change; Beijing
发表期数: 2009年8月第16期
引用格式: 蒙莉娜,郑新奇. 区域土地利用动态变化分析的新方法研究——以北京市为例[J]. 中国科技论文在线精品论文,2009,2(16):1639-1646.
 
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