The gravity shift model,spatial auto-correlation analysis and geographically weighted regression model were used to study the spatio-temporal evolution characteristics and influencing factors of"non-grain"cultivated land in Hubei Province from 2000 to 2020.The results showed that from 2000 to 2020,the non-grain rate of cultivated land in Hubei Province showed a certain fluctuation and was generally stable.In terms of space,"non-grain"had evolved from"high in the middle and east,low in the west"to a spatial pattern of"high in the east and west,low in the middle".The center of gravity of"non-grain"was moving westward as a whole.The de-gree of"non-grain"had a significant global spatial auto-correlation,and the local auto-correlation showed the characteristics of a high-high concentration centered on Wuhan City and a low-low concentration transferring from the west to the middle over time.Among the influencing factors,climate potential productivity index,soil pH and the average amount of agricultural diesel used per land were neg-atively correlated with non-grain production,while the difference in disposable income between urban and rural residents and land productivity were positively correlated with non-grain production.The size of the impact had strong spatial heterogeneity.
关键词
耕地"非粮化"/时空分异/重心转移/地理加权回归模型/影响因素/湖北省
Key words
"non-grain"cultivated land/spatio-temporal differentiation/center of gravity transfer model/geographically weighted regression model/influencing factors/Hubei Province
万方数据