Dynamic Evaluating Regional Land-cover Changes and Associated Ecosystem's Service Value Based on RS and GIS
HAO Hui-mei1, HAO Yong-li2, TIAN Dang-sheng3
1. The Geomatics Center of Bureau of Land and Resources of Xi'an, Xi'an 710021, China;
2. Center of Real Estate Transaction, Guyang County, Inner Mongolia, Baotou 014200, China;
3. The Bureau of Land and Resources of Xi'an, Xi'an 710021, China
The exploration and calculation of the eco-environment response to LUCC in Guanzhong area constitute the basis for the study and application of ecological compensation and for the realization of regional sustainable development. In this paper,the method for decision tree-based multi-layer information extraction and supervised classification was employed to extract the information of land cover in Guanzhong area in 1990,2000 and 2007. Then the different kinds of general service values of ecosystems in Guanzhong area in 1990,2000 and 2007 were evaluated respectively using the method of ecological economics. Some conclusions have been drawn: 1 In 1990,2000 and 2007, the total service values of Guanzhong area's ecosystems were 55.739 billion yuan,50.729 billion yuan and 53.377 billion yuan respectively,which further demonstrated that the regional service values of ecosystems decreased abruptly due to local serious degradation and deterioration of forest and grass from 1990 to 1998,and were increasing significantly after 1998 due to implementation of returning cultivated farmland to grassland and forest land. 2 The index of ecosystem's capacity to support economy in Guanzhong area rose from 0.436 9 in 1990 to 6.430 2 in 2007,which indicated that pressure on ecosystem is increasing continuously with the development of economy,and the task of ecosystem restoration and construction remains a key link in keeping the sustainable development of regional economy.
郝慧梅, 郝永利, 田党生. 基于RS与GIS的LUCC生态服务功能价值动态核算[J]. 国土资源遥感, 2011, 23(4): 115-120.
HAO Hui-mei, HAO Yong-li, TIAN Dang-sheng. Dynamic Evaluating Regional Land-cover Changes and Associated Ecosystem's Service Value Based on RS and GIS. REMOTE SENSING FOR LAND & RESOURCES, 2011, 23(4): 115-120.
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2011, Vol. 23 
