Analysis of the spatial differentiation and driving force of arable land abandonment and non-grain in the hilly mountainous areas of Gannan.

6 a,b,6c), the combined effect of elevation, traffic and other factors contributes to the significant non-grain of arable land in the township; Gradient analysis shows that the urban-rural gradient II (X 15 ) of the non-grain of arable land generally shows an inverted U-shape distribution differences, the dense population of Ruijin City's central urban area has a greater demand for vegetables, fruits, and other non-grain agricultural products, the 1st to 2nd ring has a higher level of the proportion of non-grain, accompanied by the changes in the circle of the level of non-grain shows a decreasing trend, the 3rd and 4th ring decreasing amplitude is obvious, and the proportion of the occupation of arable land for the development of the fruit and forestry industry in the remote areas is higher.

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