Evolution and influencing factors of spatial pattern of grain production in the Yangtze River Delta region
The issue of food security in the Yangtze River Delta region is becoming increasingly prominent.In order to explore the main factors affecting grain production,41 cities in the Yangtze River Delta region were taken as research ob-jects,and the evolution of regional grain production spatial pattern and its influencing factors were analyzed by using stand-ard deviation ellipse,gravity center analysis,and spatial Durbin model(SDM).The results showed that the difference of grain production in the Yangtze River Delta region was increasing gradually,and the overall spatial distribution pattern was decreasing from northwest to southeast,and further shrinking and clustering to northern Jiangsu and northern Anhui.Re-gional grain production had significant spatial correlation.Grain production was positively affected by the input of production factors such as land,machinery and fertilizer,as well as the level of transportation and economic development in adjacent areas.Also,it was affected by the urbanization rate and Internet broadband access rate of local and adjacent areas.It is sug-gested that we should break the restriction of administrative region,attach importance to the spatial effect of various factors,reorganize resources across regions,and realize the complementary advantage of resources in the process of ensuring food security in the Yangtze River Delta region.
grain productiondistribution changespatial effectYangtze River Delta region
NETL
NSTL
万方数据
维普
