ZHANG Qiyuan.Application of Improved Spatial Lorenz Curve to Study of Land Use Structure[J].Research of Soil and Water Conservation,2015,22(06):340-343,348.
改进型空间洛伦茨曲线在土地利用结构研究中的应用
- Title:
- Application of Improved Spatial Lorenz Curve to Study of Land Use Structure
- Keywords:
- land use structure; Lorenz curve; Gini coefficient; grid method
- 分类号:
- F301.2
- 摘要:
- 洛伦茨曲线和基尼系数是土地利用结构研究的常用方法，现有方法存在统计单元数量少、面积差异较大的问题，使得拟合的洛伦茨曲线不够平滑，计算的基尼系数不够准确。利用网格法对现有方法进行改进，以规则网格对研究区进行分割，增加了统计单元的数量，且各统计单元面积相等，可使拟合点在洛伦茨曲线上均匀分布，提高了洛伦茨曲线的平滑程度以及基尼系数的计算精度。另外，以妫水河流域为应用案例，以1998年和2009年的两期Landsat TM影像为基础数据，对改进型空间洛伦茨曲线在土地利用结构研究方面进行案例应用，结果表明该方法可以有效表达不同土地利用类型之间的结构差异及其时空变化规律。耕地始终是分布最均匀的地类，1998年分布最不均匀的地类是园地，2009年分布最不均匀的地类是水域；1998—2009年，林地和水域等生态用地的分布均匀性下降，耕地和建设用地等人工用地分布的均匀性提高。
- Abstract:
- Lorenz curve and Gini coefficient are the common methods for research on land use structure, but the current methods have problems of a few statistical unit and larger difference of unit area. So fitting Lorenz curve is not very smooth, and the Gini coefficient is not accurate enough. In this paper, the current method is improved by grid method, study area is separated by regular grid, and each grid is a statistical unit. Hence, the number of statistical units increased, and the areas of most statistical units are equal, except statistical units located at edge, which can make the fitting points evenly distributed in Lorenz curve, and that can improve the smoothing degree of Lorenz curve and the accuracy of Gini coefficient. Guishui River Basin was taken as an application case with two Landsat TM images gotten in 1998 and 2009 as basic data. The improved spatial Lorenz curve was used in research on land use structure of Guishui River Basin. The results show that this method can effectively express the structural different of each land use type and its temporal and spatial variation. Farmland is always the most homogeneous distributed land use type, and the most uneven distributed land use type was garden in 1998 and that was water body in 2009. From 1998 to 2009, the distribution uniformity of ecological lands, such as woodland and water body declined; in contrast, the distribution uniformity of artificial land use types such as farmland and construction land improved.
参考文献/References:
[1] Dixon B, Candade N. Multispectral landuse classification using neural networks and support vector machines:one or the other, or both[J]. International Journal of Remote Sensing,2008,29(4):1185-1206.
[2] 龚建周,刘彦随,张灵.广州市土地利用结构优化配置及其潜力[J].地理学报,2010,65(11):1391-1400.
[3] 鲁春阳,杨庆媛,靳东晓,等.中国城市土地利用结构研究进展及展望[J].地理科学进展,2010,29(7):861-868.
[4] Lambin E F, Turner B L, Geist H J, et al. The causes of land-use and land-cover change:Moving beyond the myths[J]. Global Environmental Change,2001(11):261-269.
[5] 盛艳,秦富仓,张艳杰.砒砂岩区小流域土地利用格局变化与优化研究[J].水土保持研究,2014,21(2):76-81.
[6] 严海涛,刘学录.基于生态效益的兰州市土地利用结构优化研究[J].湖南农业科学,2009(4):126-129.
[7] Morgan J L, Gergel S E. Quantifying historic landscape heterogeneity from aerial photographs using object-based analysis[J]. Landscape Ecology,2010,25:985-998.
[8] 沈培平,岳耀杰,王静爱,等.基于生态安全条件的沙区土地结构优化与高效利用:以科尔沁沙地为例[J].干旱区研究,2006,23(3):433-438.
[9] 耿红,王泽民.基于灰色线性规划的土地利用结构优化研究[J].武汉测绘科技大学学报,2000,25(2):167-171.
[10] De Koning G H J, Verburg P H, Veldkamp A, et al. Multi-scale modelling of Land use change dynamic for Ecuador[J]. Agricultural Systems,1999,61(2):77-93.
[11] Thanapakpawina P, Richeyb J, Thomas D, et al. Effects of landuse change on the hydrologic regime of the Mae Chaem river basin, NW Thailand[J]. Journal of Hydrology,2007,334(1/2):215-230.
[12] 张健,濮励杰,彭补拙.基于景观生态学的区域土地利用结构变化特征[J].长江流域资源与环境,2007,16(5):578-583.
[13] 黄铃凌,王平,刘淑英,等.甘南牧区土地利用结构的时空变化研究[J].水土保持研究,2013,20(3):226-236.
[14] 李义玲,乔木,杨小林,等.干旱区典型流域近30 a土地利用/土地覆被变化的分形特征分析:以玛纳斯河流域为例[J].干旱区地理,2008,31(1):75-81.
[15] 苏广实,王世杰,胡宝清,等.基于空间洛伦茨曲线的喀斯特县域土地利用结构变化分析:以广西都安为例[J].安徽农业科学,2009,37(27):13404-13407.
[16] Gastwirth J L, Modarres R, Bura E. The use of the Lorenz Curve, Gini Index and related measures of relative inequality and uniformity in securities law[J]. METRON,2005,63:451-469.
[17] 武鹏飞,宫辉力,周德民.近30年官厅水库流域景观结构的时空演变[J].生态学杂志,2011,30(10):2335-2342.
[18] Gastwirth J L. A General Definition of the Lorenz Curve[J]. Econometric, 1971,39,1037-1038.
[19] Yitzhaki, S. Relative Deprivation and the Gini Coefficient. The Quarterly Journal of Economics,1979,93(2):321-324.
[20] 张建华.一种简便易用的基尼系数计算方法[J].山西农业大学学报:社会科学版,2007,6:273-278.
[21] 张会新,杜跃平,白嘉.陕北资源产业集群的区位熵和RIS模型分析[J].资源科学,2009,31(7):1205-1210.
[22] 延庆县志编纂委员会.延庆县志[M].北京:北京出版社,2006.
[23] 许海丽,潘云,宫辉力,等.1959-2000年妫水河流域气候变化与水文响应分析[J].水土保持研究,2012,19(2):43-47.
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备注/Memo
收稿日期:2014-11-19;改回日期:2014-12-15。
基金项目:青海省2013年科技创新能力促进计划“青海省高原测绘地理信息新技术重点实验室”（2013-Z-Y18）
作者简介:张启元(1968-),男,青海湟中人,高级工程师,主要从事低空航空摄影测量与遥感研究。E-mail:652834633@qq.com