镇江市土地利用景观格局分析

以镇江市土地利用现状数据为研究对象,基于景观格局指数和GIS空间分析方法,对镇江市土地利用景观总体格局特征及空间分异规律进行了初步地分析与探讨。结果表明：镇江市最大优势景观类型为耕地,占土地总面积的50%左右,其次为建设用地和水域用地,林地也是镇江市较为重要的景观类型;土地利用景观格局存在显著的东西空间分异特征,在地形起伏较大的镇西丘陵区,景观的多样性和均匀度较高,而景观优势度及集聚度则相对较低;在人类活动影响较大的镇东平原区,景观呈现较低的多样性和均匀度,而景观优势度及集聚度却较高;景观破碎化程度在镇江中东部地区较高,表明人类开发活动与景观破碎化呈显著的正相关性规律。

Analysis on the Landscape Spatial Patterns of Land-use in Zhenjiang

With the Zhenjiang land use status data as the research object,based on the landscape index and the GIS spatial analysis method,the paper analyzes and discusses the general pattern of Zhenjiang city land use landscape characteristics and spatial distribution rules.Some conclusions are drawn as follows: the dominant pattern of the landscape in Zhenjiang city is farm land;the proportion of its total area accounts for 50 percent of all sub-areas,being followed by construction land and water,forest land is the important landscape types in Zhenjiang;there is an obvious spatial difference in landscape spatial patterns of land-use in Zhenjiang,in highlands and mountainous region of the western of Zhenjiang,the land use landscape diversity and evenness relatively are high,landscape dominance index and concentration degree are relatively low;but in human activities affect largely region of the eastern of Zhenjiang,the land use landscape diversity and evenness are relatively low,and landscape dominance index and concentration degree are higher,landscape fragmentation index of the transitional zones between mountainous region and plain is higher than that of others.It showed that human activities and land use landscape fragmentation had a significant correlation.