Spatial Pattern and Driving Factors of Non-grain Cultivated Land in Arid Northwest China:Take Xinjiang as an Example
Taking Xinjiang as an example,the spatial autocorrelation,multiple linear regression,geograph-ical weighted regression and other models were used to explore the spatio-temporal evolution characteristics and driving factors of non-grain conversion of cultivated land in the northwest arid region.The results showed that:(1)From 2000 to 2020,the non-grain rate of cultivated land in Xinjiang increased from 57.33%to 64.50%.Among them,in the development stage of characteristic agriculture(2000-2007),the degree of non-grain cultivated land increased continuously,in the optimization stage of agricultural layout(2007-2014),the degree of non-grain cul-tivated land showed a"W"shape,and in the stable and high-quality development stage of agriculture(2014-2020),the degree of non-grain cultivated land fluctuated slightly but not much in the stable.(2)During the study period,there was a significant difference in the spatial distribution of the non-grain level of cultivated land in Xin-jiang,showing a distribution trend of"high in the east and low in the west"as a whole,while there was a cluste-ring feature.The areas with serious degree of non-grain were mainly concentrated in Bazhou and Turpan,while the areas with low degree of non-grain were concentrated in Kezhou and Hotan.(3)Urbanization rate,precipitation,sunshine duration,food protection policy,land transfer rate,land productivity,per capita cultivated land area and per capita GDP were the main driving factors of cultivated land non-grain conversion in Xinjiang,and the influence direction and intensity of each driving factor showed obvious spatial heterogeneity.Based on this,differentiated management and control measures are put forward,which has important reference significance for Xinjiang cultivat-ed land planning and management.
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万方数据
