THE EXTRACTION OF LAND USE CHANGE CAUSED BY THE CONSTRUCTION OF KEY PROJECTS BASED ON OBJECT-ORIENTED METHOD: A CASE STUDY OF THE NATIONAL STADIUM
LIU Hao 1,2,3, HU Zhuo-wei 1,2,3, ZHAO Wen-hui 1,2,3
1.College of Resource Environment and Tourism, Capital Normal University, Beijing 100048,China; 2.Key Lab of 3D Information Acquisition and Application of Ministry of Education Capital Normal University, Beijing 100048,China; 3.Resources,Environment & GIS Key Lab of Beijing, Beijing 100048,China
Exemplified by the National Stadium,this paper probes into the influence of the construction of key projects on the periphery areas and the technology of land-cover change based on the object-oriented method. Selecting two images of the National Stadium in 2001 (before the construction) and in 2005 (the intermediate stage of the construction) and using multi-scale segmentation and object-oriented classification method,the authors carried out the land use information extraction and a comparative analysis of the land use change information resulting form the National Stadium construction. The results show that: (1) the ideal land cover classification results were obtained by using the object-oriented method, with the overall accuracy being 93.23% and 94.55% and the coefficient of Kappa being 0.915 8 and 0.933 2, which make up the foundation for rapid and accurate acquisition of land cover change information; (2)the construction of the National Stadium had a significant influence on periphery areas, as shown by the obvious change of vegetation, roads and cultivated land. Grasses and roads increased obviously while the cultivated land was reduced remarkably.
刘浩, 胡卓玮, 赵文慧. 基于面向对象的重大工程土地利用变化信息提取——以国家体育场(鸟巢)建设工程为例[J]. 国土资源遥感, 2009, 21(4): 86-89.
LIU Hao, HU Zhuo-Wei, ZHAO Wen-Hui. THE EXTRACTION OF LAND USE CHANGE CAUSED BY THE CONSTRUCTION OF KEY PROJECTS BASED ON OBJECT-ORIENTED METHOD: A CASE STUDY OF THE NATIONAL STADIUM. REMOTE SENSING FOR LAND & RESOURCES, 2009, 21(4): 86-89.