%0 Journal Article
%T Spatial Behavior Characteristics of Land Use based on Fractal Theory:A Case Study in the East River Watershed, Jiangxi Province<br>基于分形理论的土地利用空间行为特征——以江西东江源流域为例
%A XIE Hua-lin
%A LI Xiu-bin
%A <br>谢花林
%A 李秀彬
%J 资源科学
%D 2008
%I 
%X Fractal theory is a new tool for the study of land use spatial behavior, and the techniques of remote sensing and GIS provide a technical platform. First, we extracted land use classification information from Landsat TM images of the source watershed of the East River from 1985 and 2000, and constructed a spatial database of land use. Second, in order to improve the understanding of land use change in the East River watershed, we used the fractal model to calculate fractal indices of different landscape patterns and some landscape indices including number of patches, fragmentation index of landscape shape, and landscape separation. Results showed that the fractal dimension of land patches increased from 1.3066 to 1.3095. The land types which contributed most to the change are water areas, high-coverage grass, and dry land. The land types which showed an increase in persistence index are open forest land and paddy field, and the other land types decreased. These changes are the integrated effects of industry structure modification, cultivated land protection policies and the subsidized conversion of cultivated sloping land to forest. The land use patch density was 0.0079 patches per hectare in 1985 and 0.0081 patches per hectare in 2000. Thus, the average acreage per patch increased during this period. The land types with relatively large changes in patch density are shrubs, water area and high-coverage grassland, of which shrubland increased while the other two decreased. For the fragmentation index of landscape shape, the average fragmentation of all landscape patches increased from 0.945 in 1985 to 0.986 in 2000. This change corresponds with the change in fractal dimension. In terms of landscape ecology, a lower fractal dimension means that there is less interface between a land patch and other land use types. So the lower opportunity for external interference contributes to stability of a land patch. From 1985 to 2000, no large natural disaster happened in the study area. The change of land morphology and landscape pattern is due to the spatial behavior of land use by people.
%K Fractal theory
%K Land use change
%K Spatial behavior
%K Dongjiang
%K East River
%K Stability<br>分形理论
%K 土地利用变化
%K 空间行为特征
%K 不稳定性
%K 东江源流域
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=9DEEAF23637E6E9539AD99BE6ABAB2B3&aid=CF69E9A96EDEA35F318E6BCB15EDFD08&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=59906B3B2830C2C5&sid=EC06C22A73BC2956&eid=D4DC9CE6E809E937&journal_id=1007-7588&journal_name=资源科学&referenced_num=6&reference_num=10