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《Journal of Natural Resources》 2001-04
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Research on the relationship of cultivated land change and food security in China

FU Ze qiang,CAI Yun long,YANG You xiao,DAI Er fu (Department of Urban and Environmental Sciences,Peking University,Beijing 100871,China)  
National food security is based upon grain self sufficiency in general.Cultivated land resource is an important base influencing the available grain self sufficient capability.In China,the pressure of grain demand becomes greater and greater in the 21st century owing to the continuous population growth and income increase.Conflict between population and land will become more acute because scarce cultivated land will be partly transformed irreversibly into non agricultural uses in the process of the speedy industrialization and urbanization and economic development.Through analyzing the impacts of quantity change and quality status of cultivated land on grain production,the authors identify the relationship between cultivated land change and food security in China.This research tends to offer a basis for China to set down food security strategy in the 21st century.
【Fund】: 国家自然科学基金重点项目 (49831020) ;; 国家自然科学基金项目 (49871037)
【CateGory Index】: F326
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