机构地区: 华南师范大学计算机学院
出 处: 《生态环境学报》 2011年第12期1879-1885,共7页
摘 要: 通过对复杂土地利用地学现象的空间与时间上的综合表达和描述,可揭示土地利用时空结构演变的内在规律,可以为研究区土地资源的合理利用、优化配置和可持续发展提供科学依据。本文利用珠江三角洲1990—2005年的土地利用数据,采用空间自相关分析方法对珠江三角洲土地利用/覆盖变化的空间特征进行了实证研究。通过对研究区全域空间自相关、单变量区域空间自相关、双变量区域空间自相关的计算,表明研究区土地利用/覆盖的全域空间自相关较弱,土地利用和开发存在随机性。单变量区域空间自相关和双变量区域空间自相关在不同区域、不同时期显现不同形态,揭示了研究区内部发展的差异性。空间自相关分析方法可直观地显示分析结果,不失为一种深入理解区域土地利用格局和变化的重要和有益的方法。 By synthetically modeling and analyzing geographic phenomena of land use and land cover change (LUCC) in space and time, the inherent law inside the spatial-temporal evolution of LUCC can be explored. This kind of spatial-temporal analysis provides a scientific basis for rational/optimal use of land, which enables a sustainable development of a region. Based on the land use data from 1990 to 2005, this paper carefully analyzed the spatial-temporal pattern of LUCC in Pearl River Delta. Several spatialautocorrelation analyses were implemented, i.e., global spatial autocorrelation analysis, and univariate/bivariate local spatial correlation analysis. Results showed that the global spatial autocorrelation of LUCC in the study area was weak, and the global land use was random. However, univariate/bivariate local spatial correlation analysis showed differences among different sub-regions and among different periods, which reveal an imbalance of regional development. This paper also shows that spatial autocorrelation analysis is a useful method for analyzing and modeling LUCC.
领 域: [经济管理]