LU Debin,YU Zhen,MAO Wanliu,et al.Research on the Spatial Structure of the Mountainous Land Use Based on GIS and Fractal Theory[J].Research of Soil and Water Conservation,2016,23(02):220-223,228.
基于GIS和分形理论的山区土地利用空间结构研究
- Title:
- Research on the Spatial Structure of the Mountainous Land Use Based on GIS and Fractal Theory
- Keywords:
- land use; landscape; fractal theory; Fanjing Mountain
- 分类号:
- F301.24
- 摘要:
- 土地系统是自然环境与人文交叉最为密切的系统，成为全球环境变化研究热点之一。定量研究土地结构有利于理解土地系统的利用与变化。基于ArcGIS软件，以2009年贵州省铜仁市江口、印江和松桃县全国第二次土地利用调查1：10 000比例尺数据为研究基础数据，在二调分类基础上，将地类划分为建设用地、耕地、林地、草地、水域和未利用，选用景观格局指数、分形维数和稳定性指数为测量指标，对由江口县、印江县和松桃县三县组成的环梵净山旅游经济区的土地利用空间结构进行分析。研究结果表明该区域土地利用类型从景观生态尺度上是以林地为基质，耕地、建设用地、草地、未利用地为斑块镶嵌结构，并且以水体和道路为线状廊道的景观结构模式。林地景观类型在所有景观类型中占有一定的支配地位，相对于林地，其他地类斑块较破碎，且在空间上呈分散分布，景观多样性不高。土地利用空间结构的稳定性总体水平不高，生态系统具有脆弱性。
- Abstract:
- Land system has become one of hot spots for the global environmental change researches, as is the closest to the natural environment and the human system cross. Quantitatively measuring the structure of land utilization is conducive to the understanding of the use and changes of land system. We used the ArcGIS software, the second national survey of land use data of 1:10 000 scale for Jiangkou County, Yinjiang County, and Songtao County in Tongren City, Guizhou Province in 2009 for the research of basic data and the second survey classification to divide classes into construction land, cultivated land, woodland, grassland, waterbody and unused land based on the landscape pattern index, fractal dimension and stability index for measuring index, We analyzed the land use spatial structure of the land around the Fanjing Mountain Tourism Economic Zone composed of Jiangkou County, Yinjiang County and Songtao County. The results show that the type of the land use in this area has a landscape structure model for woodland as matrix, cultivated land, construction land, grassland, unused land as plaque inlaid structure, and with water and road for linear corridor from the landscape ecological sense of scale. In all types of landscape patches, forest landscape types occupy the dominant position and with respect to forest land, the other classes of plaque are relatively broken, and dispersed and distributed spatially and the diversity of land scape is not high. The overall level of stability of spatial structure of land utilization is not high. And the ecological system is fragile.
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备注/Memo
收稿日期:2015-04-08;改回日期:2015-04-22。
基金项目:贵州科学技术资助项目（黔科合J字[2012]07号；LKT[2012]25号；[2014]7472号）；贵州省科技支撑计划社会发展攻关项目（SY[2013]3127号）
作者简介:卢德彬(1987-),男,贵州荔波人,博士研究生,讲师,主要从事城市生态系统模拟与规划研究。E-mail:sooluo@163.com