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《Scientific and Technological Management of Land and Resources》 2010-05
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Evaluation Study of Cultivated Land Security Based on Energy Theory:A Case Study of Jiangsu

HE Bei-bei~1,CAI Cheng-feng~2 (1.School of Agricultural Cadres of Suzhou City,Suzhou 215011,China; 2.Nanjing Branch of Subway Estate Development,Suzhou 210008,China)  
The application of energy analysis to cultivated land security evaluation can overcome the limitations of traditional research methods in factor selection of natural,social and economic system,providing a theoretical and practical basis for measuring the regional cultivated land security.Taking Jiangsu Province as an example,this paper evaluates the cultivated land security from 1996 to 2007,by establishing the evaluation indicators system combined with energy indicators and traditional indicators.The results show that the security of cultivated land resources in the province during the past 12 years mainly involves relatively security region and insecure region,which can be divided into two phrase,i.e.,the increasing period,in which comprehensive evaluation index volatility rose from 0.632 to 0.654 the highest level,and the decreasing period,in which comprehensive evaluation index gradually decreased from 0.654 to 0.582.Security level of the cultivated land assumed a downward trend during from 2000 to 2007 in the combined effect of various external forces.
【CateGory Index】: F323.211
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