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| Study on temporal and spatial characteristics andinfluencing factors of cultivated land changein Sichuan province |
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| Abstract: |
| Under the new normal background，the central government puts forward that the red line of cultivated
land shall be guaranteed and the change of cultivated land in Sichuan province shall be mastered，which has important
theoretical value and significance for the rational utilization of cultivated land resources in Sichuan province. The data
of cultivated land in 2000-2013 was used for analyzing the temporal characteristics of cultivated land change，and the
location entropy and relative change rate were used for analyzing the spatial characteristics of cultivated land change. On
this basis，factors influencing the cultivated land change in the province were discussed by means of PCA. The results
showed that：（1）the total cultivated land and per capita cultivated land in Sichuan province decreased；（ 2）The
agglomeration degree of cultivated land in Chengdu Plain is the highest，while that in Northwest and Southwest Sichuan
was relatively low；（ 3）The regions with the largest regional differences in cultivated land were mainly distributed in
Southwest and Northwest Sichuan（except Aba Autonomous Prefecture）and parts of cultivated land in hilly areas，
and the regions with less regional differences in cultivated land were mainly concentrated in the Basin of Sichuan；（4）
The main influencing factors of the spatial and temporal characteristics were the social-economic factors，demographic
factors，and agricultural production factors. |
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