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《Resources and Environment in the Yangtze Basin》 2009-12
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RELATIONSHIP BETWEEN THE CULTIVATED LAND CHANGE AND FOOD SECURITY IN ANHUI PROVINCE

LI Bin1,WU Heng2(1.Department of Geo-Informatics,Chuzhou College,Chuzhou 239000,China;2.College of Science,Northwest A & F University,Yangling 712100,China)  
Based on the statistical data over the past 30 years(1978~2007),the dynamic change of cultivated land in Anhui Province was quantitatively analyzed by using the statistical method.The methods of correlation analysis and multiple linear regression analysis were used for discussing the relationship between the cultivated land change and food security.The results indicates that:(1)The total area of cultivated land and per capita cultivated land has a decreasing trend year after year basically.The average decrement rate per year of the total area and per capita cultivated land is 0.24% and 1.15% respectively.(2)The total and per capita grain output have increased trend year after year basically.But the fluctuation in them is also very remarkable,so delivery pressure of food security in Anhui Province is still higher in the future.(3)It is a significant correlative relationship between total grain yield and the grain yield of per hectare,multiple cropping index,also between the annual gradient of grain yield and cultivate area,planted grain area.The results of this paper can give some references for protection and utilization of cultivated land in Anhui Province.
【CateGory Index】: F323.211
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