摘要
基于“经济效益-社会效益-生态效益”模型构建土地利用效益评价指标体系,揭示甘肃省土地利用效益时空演变特征,结合耦合协调度模型分析经济、社会、生态效益的耦合协调程度,通过地理探测器探究其主要影响因素.结果表明,2000-2018年甘肃省土地利用综合效益整体呈上升趋势,“北高南低”空间格局明显,形成以兰州市和嘉峪关市为主的“双核心”结构.从子系统来看,经济效益呈“先升后降”趋势,空间上呈“中间高四周低”格局;社会效益呈波动上升趋势,空间上呈“中间高、西北部次之、东南部较低”格局;生态效益整体呈持续上升趋势,空间上呈“中间低、西北和东南高”格局.从耦合协调关系来看,甘肃省各市州均处于失调状态,主要以中度失调为主,耦合协调性有待提升.从土地利用效益耦合协调性的影响因素来看,经济发展水平、城镇化水平、产业结构调整、环境污染治理、基础服务设施水平是影响其提升的主要因素,经济发展水平和环境污染治理与其他因子交互作用的解释力最强.
Based on the"economic benefit-social benefit-ecological benefit"model,a land use benefit evaluation index system was constructed and the spatiotemporal evolution characteristics of land use benefit in Gansu Province revealed,combined with the coupling coordination degree model to analyze the degree of the coupling coordination of economic,social and ecological benefits and explore its main influencing factors through the geo-detectors.The results showed that comprehensive benefits of land use in Gansu Province from 2000 to 2018 showed an overall upward trend,and the spatial pattern of"high in the north and low in the south"was obvious,forming a"dual core"structure dominated by Lanzhou and Jiayuguan.From the perspective of sub-systems,economic benefits showed a trend of"first rising and then falling",showing spatially a pattern of being"high in the middle and low around the periphery";social benefits had a fluctuating upward trend,of a"high in the middle,second in the northwest,and relatively low in the southeast"pattern;the overall ecological benefits were on a continuous upward trend,with a pattern of"middle low,northwest and southeast high"in space.From the perspective of the coupling and coordination relationship,all cities(prefectures)in Gansu Province were in a state of imbalance,mainly of a moderate imbalance,and the coupling coordination needed to be improved.From the perspective of the influencing factors of the coupling and coordination of land use benefits,the level of economic development,level of urbanization,adjustment of industrial structure,control of environmental pollution,and level of infrastructure service facilities were the main factors affecting its improvement.The level of economic development and environmental pollution control had the strongest explanatory power for the interaction of other factors.
作者
郑岚
张志斌
马亚兄
董建红
ZHENG Lan;ZHANG Zhi-bin;MAYa-xiong;DONG Jian-hong(College of Geography and Environmental Science,Northwest Normal University,Lanzhou 730070,China)
出处
《兰州大学学报（自然科学版）》
CAS
CSCD
北大核心
2022年第1期11-19,共9页
Journal of Lanzhou University(Natural Sciences)
基金
国家自然科学基金项目(41961029,41161028)。
关键词
土地利用效益
耦合协调度
影响因素
甘肃省
land use benefit
coupling coordination degree
influencing factor
Gansu Province
