Study on Pattern Changes and Influencing Factor of Grain Production in Jilin Province
Based on the statistic data of Jilin province from 1949 to 2003, the process of grain product in Jilin province was analyzed in this paper. And the temporal and spatial evolution rule of the grain product and its humane impact factors were revealed by utilizing slide mean algorithm and GIS, and applying grey system theory. The results showed: ①in the last fifty years, there was significant change of grain product pattern, annual fluctuation and regional differentials; ②there were the highest level of annual grain product in the middle west, higher in the middle and lowest in the east and west Jilin province; ③the grey relevance degree of the ten influencing factors were between 0.66 and 0.99, among which grain yield per capita was the top one. Finally, some policies were provided in order to accelerate grain yield and optimize spatial structure of grain production.
Grain productionSpatial patternGrey relevance analysisJilin province
国家科技期刊平台
NSTL
万方数据
维普
