A Critical Review of Methods for Analyzing Freshwater Eutrophication

Water

Hong Yang¹  Hui Lu²  Zihan Zhan³  Lukas Van Zwieten³  Weicheng Xu³  Jiefeng Dong³  Hailong Wang³  Yanping Bao³  Xueding Jiang³  Mingxuan Li³  Yan Zhang³  Aref Alshameri³  Xin Chen³ 

[1] Department of Geography and Environment Science, University of Reading, Reading RG6 6AB, UK;School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China;School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China;

关键词: water quality;    evaluation methods;    BP neural network;    fuzzy comprehensive evaluation (FCE);    trophic state index (TSI);    trophic level index (TLI);   

DOI  :  10.3390/w13020225

来源: DOAJ

【 摘 要 】

Water eutrophication is a global environmental problem that poses serious threats to aquatic ecosystems and human health. The evaluation of eutrophication provides a theoretical basis and technical guidance for the management and rehabilitation of water ecosystems. In the last four decades, dozens of evaluation methods have been applied to freshwater eutrophication, but there is a clear need to optimize and standardize the most suitable methods. We have addressed this gap by presenting a systematic review of methodologies. Due to the diversity and complexity of water bodies, no single evaluation method was identified that would adequately represent eutrophication under all scenarios. We demonstrate that lakes can best be assessed using the trophic level index (TLI) method, reservoirs and wetlands the trophic state index (TSI) and fuzzy comprehensive evaluation (FCE) method, respectively, and rivers the FCE method or back propagation (BP) neural network methods. More recently applied methodologies including spectral imaging and 3-D mapping of water quality using underwater gliders allow greater resolution and can be effective in managing waterbodies to avoid future eutrophication. The aim of this review is to guide future studies on the most appropriate methods available for assessing and reporting water eutrophication.

【 授权许可】

Unknown