Application of PCA integrated with CA and GIS in eco-economic regionalization of Chinese Loess Plateau |
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| Authors: | Qing-feng Zhang Fa-qi Wu Li Wang Lifeng Yuan Long-shan Zhao |
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| Institution: | a College of Resources & Environment, Northwest A&F University, Yangling, Shaanxi 712100, Chinab Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, Chinac College of Geography & Biological Information, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210003, China |
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| Abstract: | Eco-economic regionalization (EER) is to divide an area into geographical zones. Each zone is linked to the others based on the eco-economic similarity and disparity. In this study, models of EER of the Chinese Loess Plateau were constructed. Data on 22 selected indicators were gathered for the 282 administrative counties. Then they were analyzed through an approach of PCA integrated with CA and GIS. In the generated model, the plateau was assigned to 4 belts and 18 eco-economic zones. The relationship among the subdivisions was able to represent the real situation. It demonstrates the division scheme is very comprehensive, concise and applicable. The work has established a novel methodological framework for EER of large-scale area. |
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| Keywords: | Eco-economic regionalization Regionalization indicator Principal component analysis |
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