【摘要】 地理时空变化是地理学研究的重要内容之一,如何用计算机技术来表达空间数据的时空变化独具前瞻性。从揭示LULC时空演变过程和挖掘时空演变规律出发,讨论了基于地类图斑的时空演变过程类型与判定方法,并构建了一种基于地类图斑的时空变化分析算法。通过对抚仙湖流域近40年来LULC时空演变分析,验证了算法的可靠性与有效性。表明该方法可用于地表覆盖等地理要素的时空变化过程分析,能较好地揭示地理要素及其属性在时间轴上的改变过程。更多还原

【Abstract】 Geographical components spatio-temporal change is one of the important contents in geography research. And perspective study is that how to use computer technology to express the spatio-temporal change of spatial data. Aiming at revealing the spatiotemporal variation of land use/land cover( LULC) process and mining spatio-temporal variation rules,the types and methods of spatiotemporal variation of LULC patches are discussed,and a spatio-temporal variation analysis algorithm for analyzing LULC patches is constructed. The reliability and effectiveness of the algorithm are verified according to analysis of spatio-temporal variation of LULC in the past 40 years in the Fuxian Lake Basin. The results show that,the method can be used to analyze the spatio-temporal variation process of geographical elements such as surface cover,and can efficiently reveal the change process of geographic elements and their attributes on the time axis.更多还原