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《Journal of Hubei University(Natural Science)》 2018-02
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Research on the land use spatial structure and its change characteristics of different soil types in Jianghan Plain

PAN Fangjie;WANG Hongzhi;LI Rendong;WANG Luyao;Research Institute of Sustainable Development,Central China Normal University;College of Urban & Environmental Sciences,Central China Normal University;Institute of Geodesy and Geophysics,Chinese Academy of Science;  
A case study was carried out in Jianghan Plain by calculating some indices that characterized the index of patch,such as average patch area,landscape shape index and separation index,to quantitatively analyze the spatial distribution of soil types and its relationship and change characteristics with land use spatial structure. The results are as follows: 1) The major arable soil types in Jianghan Plain are paddy soil and fluvoaquic,and they both have the best connectivity and aggregation degree,and the spatial structure differences of patches are small. The zonal soil mainly consisted of red soil and yellow brown soil. The connectivity and aggregation degree of the former are better than the later,and the patch shape and the complexity of patch mosaic structure are even higher at the same time. 2) Different land use types reveal different selectively to different soil types to some degree. The woodland and grassland mainly distributed in yellow brown soil and meadow soil respectively,while the other land use types mainly distributed in paddy soil and fluvo-aquic. The proportion of land use types distributed in different soil types had changed and the change degree was differentobviously from 1990 to 2010,but the overall variation remained the same. 3) The characteristics of spatial structure were different and the change of separation index was obvious in different soil types,and the overall distribution and change trend were consistent with the average patch area. From 1990 to 2010,the patch shape and the complexity of patch mosaic structure of land use types were increased differently to some degree that showed increased influence by human activities,but the degree of influence is different. This research improves our understanding of the difference,affected by natural factors,in the process of the spatial structure change of land use types,and so as to provide reference for the development and utilization of land use types.
【Fund】: 国家自然科学基金(41571487);; 湖北省自然科学基金创新群体项目(2016CFA027)资助
【CateGory Index】: F301.24
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