基于岭回归模型的酒泉市耕地集约利用度及驱动因素研究

Research on Intensive Utilization and Driving Factors of Cultivated Land in Jiuquan City Based on Ridge Regression Model

本文在采用改进熵值法和综合指标法测算酒泉市各县区耕地集约利用度的基础上,运用岭回归模型对酒泉市耕地集约利用度的驱动因素进行研究。结果表明,(1)酒泉市耕地集约利用水平较低且差异明显,呈南北高、中部低的空间分布特征;(2)酒泉市及其各县区的耕地集约利用度影响因素差别较大。通过分析各县(市、区)耕地集约利用度和驱动因素,为政府部门指导各地提升耕地集约利用水平、保护耕地资源提供依据。

Based on the improved entropy method and comprehensive index method used to measure the intensive utilization of cultivated land in various counties and districts of Jiuquan City,this paper uses the ridge regression model to study the driving factors of the intensive utilization of cultivated land in Jiuquan City.The results show that,(1)the level of intensive use of cultivated land in Jiuquan City is relatively low and the difference is obvious.The spatial distribution characteristics are high in the north and south and low in the middle;(2)the influencing factors of the intensive utilization of cultivated land in different counties are quite different.Through the analysis of the intensive utilization of cultivated land and driving factors in each county(cities,districts),it provides a basis for government departments to guide the localities to improve the level of cultivated land intensive use and protect cultivated land resources.