关键词: 耕地多功能利用, 熵权TOPSIS模型, 综合评价, 时空演变, 和田河流域

Abstract:  In this paper,  the temporal and spatial evolution law of the cultivated land multifunctionality was analyzed,  and the dominant function types of cultivated land were defined to provide a scientific basis for multifunctional utilization of cultivated land in the Hotan River Basin. Based on the natural environment endowment of the Hotan River Basin,  the multifunctional evaluation index system of cultivated land was constructed. The entropy weight method was used to determine the index weight. Using the entropy weight TOPSIS model,  the cultivated land multifunction from 2009 to 2019 was evaluated from temporal and spatial dimensions. According to the maximum closeness values,  the leading function of cultivated land in each county was defined. From the dimension of time,  the comprehensive function,  social security function,  and landscaperest function of cultivated land were enhanced. The grade was increased from Ⅲ to Ⅳ,  Ⅱ to Ⅲ,  and Ⅰ to Ⅲ,  respectively. The agricultural production function evolved steadily,  and the grade was at Ⅴ level. The ecological service function was slightly weakened,  and the grade was reduced from Ⅲ to Ⅱ. From the dimension of space,  the comprehensive and agricultural production functions were unchanged in the western region,  weakened in the central region,  and enhanced in the eastern region. The social security and landscaperest function were enhanced in the western,  central,  and eastern regions. The ecological service function weakened in the western and central regions and enhanced in the eastern region. The dominant function of cultivated land in the basin is productionoriented (Luopu County,  Cele County),  socialoriented (Pishan County),  ecologicaloriented (Moyu County,  Hotan County),  and landscaperestoriented (Hotan City). The temporal and spatial evolution law of the cultivated land multifunctionality in the Hotan River Basin is obvious. The differentiated utilization and protection of cultivated land based on dominant functions are of great significance to the promotion of rural revitalization strategies and the realization of sustainable development.

Key words: multifunctional utilization of cultivated land, entropy weight TOPSIS model, comprehensive evaluation, temporal and spatial evolution, Hotan River Basin