高原山区耕地非粮化空间分异及影响因素研究

打开文本图片集

中图分类号：F301.21 文献标识码：A

Abstract： The process of urbanization has greatly changed the regional land use patern. Simultaneously， under the influence of the adjustment of agricultural production structure，the drive of planting interests and the grain for green policy，the situation of non-grain cultivation has shown a growing tendency of intensification. It is of great significance to scientificallydefine and measure the different types of farmland non-grain rate，and clarify the spatial differentiation characteristics and influencing factors of farmland non-grain cultivation in plateau mountainous regions. Taking Yulong County in Yunnan Province as an example，the study quantitatively measured the rate of non-grain cultivation in terms of planting structure， agricultural production structure and abandonment of cultivated land，and comprehensively used spatial autocorrelation analysis and geographical detector to examine the spatial distribution characteristics of non-grain cultivation of different types of cultivated land in plateau mountainous regions，as well as their influencing factors. The study shows that： ① The spatial distribution of the non-grain utilization rate of different types of arable land in Yulong County showed significant differences. ② In Yulong County，the spatial distribution of non-grain cultivated land demonstrated a distinct clustering pattern. The non-grain planting structure in the northwest high-altitude areas showed a high-value agglomeration. The eastern and southeastern basin areas had high value agglomeration of the non-grain agricultural production structure and high value agglomeration of the abandonment of cultivated land， respectively. ③ Factors such as the degree of fragmentation，road network density，per capita disposable income，and permanent basic farmland significantly influenced the spatial distribution of non-grain cultivation in plateau mountain regions. Therefore，when non-grain control is carried out in this region，the law of cultivated land utilization in the plateau mountain area should be folowed，and targeted control measures should be taken for different regions and different types of non-grain cultivated land.

Key words： land use; non-grain cultivated land; spatial differentiation； plateau mountain region

耕地是粮食生产的物质基础，切实保护耕地对于保障国家粮食安全、推动农业可持续发展具有重要作用[1-3]。（剩余13746字）