Present Situation and Prediction of Grain Security in Hubei Province Based on Cultivated Land Pressure Index

By calculating current cultivated land pressure index in Hubei and in recent years，and combining grain self-sufficiency rate of each city and state，situation of grain security in Hubei province was illustrated.Main factors affecting pressure index of cultivated land in Hubei province were found out，and problems existing in the process of ensuring food security in Hubei province were clarified.It was practical to reduce pressure index of cultivated land in Hubei，to ensure food security and to improve comprehensive productivity of agriculture.From dynamic point of view，panel data related to cultivated land pressure index in Hubei province were analyzed longitudinally，and development trend of the data was observed.And grey system model and various regression models were used to predict factors in 2020 and 2025 in Hubei，which related to cultivated land pressure，such as cultivated land area，population and so on.Then，combining actual situation of Hubei province，future grain security situation in Hubei province was analyzed and predicted.Assuming future of different food demand，prediction of Hubei′s cultivated land pressure index size and food security situation was made.