基于分形理论的土地利用景观格局变化研究——以镇赉县镇赉镇为例  

Study on Changes in Landscape Pattern of Landuse Based on Fractal Theory——A Case Study of Zhenlai Town of Zhenlai County

作　　者：郄瑞卿[1] 刘富民[1] 

机构地区：[1]吉林农业大学经济管理学院土地管理系,长春130018

出　　处：《水土保持研究》2013年第2期217-222,共6页Research of Soil and Water Conservation

基　　金：国家自然科学基金(41071160);吉林省科技厅项目(20100608);吉林省教育厅项目(20100068)

摘　　要：为增进对土地利用空间行为变化的理解,以分形理论和景观生态学为指导,以吉林省镇赉县镇赉镇的土地利用空间数据为基础,应用GIS对土地利用类型的分形及稳定性进行了研究。将土地利用类型划分为8类:耕地、园地、林地、草地、水域及水利设施用地、道路、居民点及工矿用地和未利用地,并进行各土地利用类型图斑分形维数分析。结果表明:土地利用类型的分布具有分形结构,各土地利用类型分维数(D)介于1.056 5～1.960 4。根据分维数对各土地利用类型进行稳定性排序:水域及水利设施>园地>耕地>居民点及工矿用地>草地>林地>未利用地>道路。且土地利用的形状指数、破碎化指数以及分离度指数在空间上的分布规律很大程度上受到人为活动的影响与干扰。研究结果可为研究区域土地资源的合理利用提供若干参考。This thesis used fractal theory and landscape ecology as guide for the study of land use spatial be- havior in order to enhance the understaning of the changes on land use spatial behavior. Based on the spatial land use database of Zhenlai Town of Zhenlai County in Jilin Province, fractal dimension and stability of land use types were studied. The landuse was classified into 8 types： cropland, garden plot, wood land, grass land, water body, road land, industrial and mining and unused land. The fractal dimension for the patches of landuse types was analyzed. Results showed that all the landuse types had fractal characteristics and the frac- tal dimension （D） values varied from 1. 056 5 to 1. 960 4. In terms of landuse stability given by the fractal di- mension, the order of landuse types from high to low level was water, garden plot, cropland, industrial and mining, grass land, wood land, unused land, road land. And landuse shape index, fragmentation index and the separation index in the spatial distribution pattern were largely affected by interference of human activi- ties. The Results can provide reference for the rational utilization of land resources.

关 键 词：分形理论 分形维数 土地利用 景观格局 镇赉镇 

分 类 号：P901[天文地球—自然地理学]