RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2018, Vol. 27 >> Issue (01): 51-.doi: 10.11870/cjlyzyyhj201801010

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#br# Evaluation of Cultivated Land Resource in Sichuan Province Based on Ecological Footprint Model

WANG Qi1,YI Guihua2,ZHANG Tingbin1,3,4,BIE Xiaojuan1,LIU Dong1,HE Dong1,XU Jiaxin1   


  1. (1. College of Earth Science, Chengdu University of Technology, Chengdu 610059, China;2. College of Management Science, Chengdu University of Technology, Chengdu 610059, China;3. The Engineering& Technical College of Chengdu University of Technology, Leshan 614000, China;4. Key Laboratory of Geoscience Spatial Information Technology of Ministry of Land and Resources, Chengdu 610059, China)
  • Online:2018-01-20

Abstract: Cultivated land has the largest productivity inallecologicallyproductive landuse types. The ecological footprint model is one of the commonly used tools for quantitative evaluation of sustainable development.This study analyzes the ecological deficit and the utilization state of cultivated land in Sichuan province from 2006 to 2013based on the traditional ecological footprint model, improved ecological footprint model and EFNPP model. The differences of thosethree models are discussed. The results show that the percapita ecological footprint of cultivated land keeps arising trend, and the percapita ecological capacity is rather stable, which indicatesa sustained trend of expansion at percapita ecological deficit in Sichuan province during 2006 to 2013.The status of cultivated land utilization is undergoing changes from weaksustainable to strongsustainable. Comparative studies of the three ecological footprint modelsshows that the EFNPP model makes up for the deficiency of both the traditional ecological footprint model and the improved ecological footprint model. The EFNPP modelis effective inreflecting the dynamic status of regional cultivated land use and sustainable development.

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