Over the few decades, arable land resources in different regions of China have shown a decreasing trend.
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Analysis of spatial and temporal changes and driving forces of arable land in the Weibei dry plateau region in China.
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The sentences
the rate of shift of the center of cropland increased from the initial 165.34 m a -1 to 1303.78 m a -1 in 25 years, and movement speed showed an increasing trend.