基于熵权TOPSIS模型的黄河流域甘肃段水土保持治理综合效益评价  

Evaluation of Comprehensive Benefits of soil and Water Conservation Management in the Gansu Section of the Yellow River Basin Based on Entropy Weighted TOPSIS Model

作　　者：靳峰 周颖[1,3] 郭璐 马涛[4] 刘兴德 JIN Feng;ZHOU Yin;GUO Lu;MA Tao;LIU Xing-de(College of Earth and Environmental Sciences,Lanzhou University,Lanzhou 730000,Gansu Province,China;Department of Water Resources of Gansu Province,Lanzhou 730000,Gansu Province,China;Gansu Provincial Department of Ecology and Environment,Lanzhou 730000,Gansu Province,China;Institute of Soil and Water Conservation of Gansu Province,Lanzhou 730020,Gansu Province,China)

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000 [2]甘肃省水利厅,甘肃兰州730000 [3]甘肃省生态环境厅,甘肃兰州730000 [4]甘肃省水土保持科学研究所,甘肃兰州730020

出　　处：《中国农村水利水电》2024年第12期80-89,共10页China Rural Water and Hydropower

基　　金：国家自然科学面上项目“云3D效应对地表太阳辐射遥感估算的影响”(42171322)。

摘　　要：为探究黄河流域甘肃段实施水土保持重点工程后效益水平、演化规律及障碍因素,基于“调水保土-生态-经济-社会”主题框架构建了水土保持综合治理效益评价指标体系,运用熵权TOPSIS模型和耦合协调模型定量评价2000-2021年黄河流域甘肃段9市州水土保持治理综合效益时空演化过程及子系统间的耦合协调性,引入障碍度模型识别9市州水土保持治理综合效益提升的障碍因素。结果表明:2000-2021年间,黄河流域甘肃段水土保持综合治理效益呈逐年增长态势,由2000年极度恶化状态转变为2021年良好状态;水土保持综合治理效益9市州空间上差异性明显,兰州、白银、平凉水土保持综合治理效益较高,9市州间差距呈现逐年缩小良好均衡趋势;调水保土、生态、经济、社会效益系统发展水平均呈现逐年增长趋势,生态效益系统发展水平滞后于调水保土、经济和社会效益系统;9市州水土保持综合治理效益系统耦合协调度呈逐年增长趋势,由濒轻度失调阶段过渡到良好协调阶段,且空间上表现为比较均衡局面;产水模数、地表径流深、植物固碳量、植物释放氧气量、人均农业机械总动力是阻碍黄河流域甘肃段水土保持综合治理效益提升的主要障碍因素。研究表明黄河流域甘肃段水土保持综合治理效益逐年日益明显,整体向着健康、协调均衡的方向不断发展,同时流域在水土保持综合治理和农业生产条件现代化等方面仍有较大的提升空间。In order to explore the level of benefits,evolution patterns,and obstacle factors after the implementation of key soil and water conservation projects in the Gansu section of the Yellow River Basin,an evaluation index system for the comprehensive management benefits of soil and water conservation was constructed based on the theme framework of"water and soil conservation,ecology,economy,and society".The entropy weight TOPSIS and coupling coordination model were used to quantitatively evaluate the spatiotemporal evolution process of the comprehensive benefits of soil and water conservation in 9 cities and prefectures of the Gansu section of the Yellow River Basin from 2000 to 2021,as well as the coupling coordination between subsystems.The obstacle degree model was introduced to identify the obstacle factors for improving the comprehensive benefits of soil and water conservation.The results show that from 2000 to 2021,the comprehensive manage⁃ment benefits of soil and water conservation in the Gansu section of the Yellow River Basin have been increasing year by year,transitioning from an extremely deteriorating state in 2000 to a good state in 2021;There were significant spatial differences in the benefits of comprehen⁃sive soil and water conservation management among the 9 cities and prefectures.Lanzhou,Baiyin,and Pingliang had higher benefits of com⁃prehensive soil and water conservation management,but the gap between cities and states showed a good trend of narrowing year by year;The development level of water and soil conservation,ecological,economic,and social benefit systems all showed an increasing trend year by year,and the development level of ecological benefit systems lagged behind that of water and soil conservation,economic,and social ben⁃efit systems;The coupling coordination degree of the comprehensive management benefits system for soil and water conservation in the 9 cit⁃ies and prefectures showed an increasing trend year by year,transitioning from a stage of mild imbalance to a stage of

关 键 词：水土保持 综合效益 熵权TOPSIS模型 耦合协调性 黄河流域甘肃段 

分 类 号：S157[农业科学—土壤学]