摘要
【目的】诊断乌梁素海维持区域生态系统良性循环的潜力和保持湖泊重要功能的状态,掌握地区水文循环和生态平衡的关系。【方法】本文对2015—2019年乌梁素海水生态系统健康体征进行调查研究,首先构建了水文、物理、化学、生物、社会服务5个方面的湖泊生态系统健康评价指标体系,基于层次分析-熵权健康指数法综合计算分析了乌梁素海生态系统健康体征。【结果】2015—2019年乌梁素海生态系统综合健康指数分别为0.201、0.226、0.542、0.517和0.605,2015—2016年乌梁素海生态系统健康评估状况处于较差状态,2017—2018年生态系统健康评估状况为中等状态,2019年乌梁素海湖泊生态系统评估结果较好。目前,乌梁素海全湖水质基本达到地表水环境质量标准Ⅴ类,乌梁素海整体水质呈上升趋势。【结论】通过运用层次分析-熵权综合健康指数法评价乌梁素海湖泊生态系统健康状态既可靠又实用,且能清晰体现出湖泊生态系统变化规律,为乌梁素海生态系统的保护和治理提供了方法支撑。
【Objective】Ulan Suhai Lake,a critical surface water body in the Hetao Irrigation District of Inner Mongolia,plays a vital role in supporting various sectors,including agriculture,industry and local livelihoods.Its ecological health has been influenced by diverse biotic and abiotic factors that have shown significant spa tial and temporal variations.This paper is to analyze its ecological health and the underling determinants over recent years.【Method】Ecological health of the lake was analyzed using data measured from 2015 to 2019.Key indicators considered include hydro logical dynamics,physical,chemical,biological traits of the lake water,as well as social and ecological services the lake provides.The evaluation was calculated using the hierarchical analysis-entropy weight comprehensive health index.【Result】Ecosyste m health of the lake showed a notable improvement over the study period.From 2015 to 2016,ecosystem health of the lake was classified as poor,transitioning to moderate from 2017 to 2018,and showing a marked improvement by 2019.Furthermore,the water q uality of the lake has consistently improved over the last decade,now reaching Grade V of the national water quality standards.【Conclusion】The hierarchical analysis-entropy weight comprehensive health index method is reliable and practical for evaluating ecological health of lakes,effectively identifying temporal changes and the underlying influencing factors.These findings provide a valuable baseline for guiding protection,management,and sustainable development of Ulan Suhai Lake.
作者
勾芒芒
冯雪瑶
李建茹
李兴
GOU Mangmang;FENG Xueyao;LI Jianru;LI Xing(Inner Mongolia Institute of Mechanical and Electrical Technology,Department of Water Conservancy and Civil Engineering,Hohhot 010070,China;College of Chemistry and Environmental Sciences,Inner Mongolia Normal University,Hohhot 010022,China;Engineering Research Center for Water-saving Agriculture,Inner Mongolia Normal U niversity,Hohhot 010022,China)
出处
《灌溉排水学报》
2025年第2期93-100,共8页
Journal of Irrigation and Drainage
基金
国家自然科学基金项目(52160022)
内蒙古自治区教育科学研究“十四五”规划课题(NZJGH2023007)
学院基金项目(NJDZR2302)。
关键词
乌梁素海
熵权法
层次分析法
生态系统健康评价
UlanSuhai lake
entropy method
hierarchical analysis
ecosystem health assessment
