Review on the Causes of Eutrophication in Water

DOI

10.2991/978-2-494069-31-2_30How to use a DOI?

Keywords

eutrophication; non-point source pollution; river pollution; nitrogen and phosphorus pollution; environmental assessment

Abstract

In recent years, eutrophication in river water bodies has become one of the main water environment problems. However, the factors that contribute to eutrophication of river water bodies are complex. Eutrophication assessment methods are diverse, and contaminated water bodies have many sources of pollutants. Eutrophication reduces the self-purification capacity of water bodies and destroys the biodiversity of river ecosystems. There are many ways to evaluate eutrophication, and scholars in China and abroad have conducted a lot of research on river eutrophication in different regions, and established a sound mathematical model, evaluation criteria and method selection. Choosing a method suitable for assessing the degree of eutrophication of river water bodies is a priority at present. This paper aims to summarize the causes of eutrophication of a series of water bodies through the method of literature analysis, list the commonly used ways to evaluate eutrophication of water bodies and analyze the characteristics of each method, summarize the existing results, and use them as a reference for dealing with the phenomenon of river eutrophication. The paper finds that according to the U.S. Environmental Protection Agency (EPA), river bottom pollution is one of the main causes of water eutrophication, which is fundamentally due to irrational human activities, especially the increase of agricultural practices. Besides, agricultural pollution is the first major pollution of surface water pollution in rivers, lakes and other land surfaces, contributing 2/3 of the total pollution load.

Copyright

© 2022 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Chunxiao Yang
PY  - 2022
DA  - 2022/12/29
TI  - Review on the Causes of Eutrophication in Water
BT  - Proceedings of the 2022 6th International Seminar on Education, Management and Social Sciences (ISEMSS 2022)
PB  - Atlantis Press
SP  - 246
EP  - 252
SN  - 2352-5398
UR  - https://doi.org/10.2991/978-2-494069-31-2_30
DO  - 10.2991/978-2-494069-31-2_30
ID  - Yang2022
ER  -