Analysis on the evolution of spatiotemporal pattern of main crop planting structures in Jilin Province
Based on statistical analysis,GIS spatial distribution direction analysis,time series change trend analysis and so on,this paper analyzes the spatiotemporal pattern evolution trend of the main crop planting structure in Jilin Province from 1985 to 2022.The results show that the crop planting area in Jilin Province has shown an upward trend in the past 40 years.The crop planting types are mainly corn,rice,soybeans,oil crops,and vegetables,which they show a northwest-southeast spatial distribution pattern;From 1985 to 2022,8 types of crop planting structures appeared in Jilin Province.Jilin City,Songyuan City,Baicheng City and Yanbian Korean Autonomous Prefecture made adjustments to the crop planting structure types,and the proportion of food crops planted increased;From the perspective of type richness,the type richness of crop planting structure in Jilin Province from 1996 to 2022 showed an overall downward trend of first increasing and then decreasing,with the maximum value appearing in 2002,which was 0.75.The research results can provide theoretical basis for the theoretical optimization of crop planting structure in Jilin Province.
cropperplanting structurespatio temporal evolutionJilin Province
万方数据
维普
