THE INFLUENCE OF CONSTRUCTION LAND EXPANSION TO CULTIVATED LAND AND GRAIN PRODUCTION IN CENTRAL CHINA
分析了中国中部地区建设用地扩张如何导致耕地减少，进而影响粮食生产，并量化了耕地面积、复种指数等因素对粮食产量的具体贡献。
As the most important grain production base,the change of grain production in the central region of China is crucial to the Foodstuff Security in China.With rapid economic and social development,the contradiction between the expansion of construction land and agriculture development becomes more serious in the central region of China.Based on the analysis of the expansion of construction land,changes of cultivated land and grain production in detail,this paper concludes that construction expansion is the main reason of the reduction of cultivated land in the central region of China.Moreover,the fluctuation of foodstuff production is resulted from the decrease of cultivated land.With Factor Analysis Approach,this paper calculates the impacts of cultivated land area,multiple cropping exponential,grain sowing ratio and yield of per unit area on the foodstuff production.Furthermore,this paper focuses on figuring out the concrete contribution of construction land expansion to the foodstuff production.