喀斯特山区镇宁县耕地多功能评价研究OA

Cultivated land is the basic guarantee for human survival and development.Studying the multifunctionality of cultivated land is of great significance for protecting cultivated land resources,ensuring food security,and promoting rural revitalization.Taking Zhenning County as the research area,this paper divides the functions of cultivated land into four categories:economic production,social security,ecological service,and cultural landscape.An evaluation index system including 18 indicators is constructed to assess the multifunctionality of cultivated land in Zhenning County.The analytic hierarchy process(AHP),combined with qualitative and quantitative methods,is used to analyze the changes in various functions of cultivated land in Zhenning County in the past decade.The results show that the comprehensive utilization level of cultivated land functions in Zhenning County is low,with the economic production function being dominant and showing an overall upward trend.The social security function shows a downward trend.The ecological service and cultural landscape functions of cultivated land fluctuate greatly and are lack attention,indicating considerable room for improvement.