Assessing ecosystem health changes in UlanSuhai Lake using hierarchical analysis and entropy method

• Published in: Guanʻgai paishui xuebao Vol. 44; no. 2; pp. 93 - 100
• Main Authors: GOU Mangmang, FENG Xueyao, LI Jianru, LI Xing
• Format: Journal Article
• Language: Chinese
• Published: Science Press 01.02.2025
• Subjects: ulansuhai lake; entropy method; hierarchical analysis; ecosystem health assessment
• ISSN: 1672-3317
• DOI: 10.13522/j.cnki.ggps.2024199

【Objective】UlanSuhai 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 spatial 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 hydrological 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】Ecosystem 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 201