Abstract
Water environmental capacity is an essential component of water environmental assessment and must be monitored and managed for economic, engineering, and human health reasons. Many efforts have been made to study methods for the calculation of water environmental capacity. This paper reviews available literature on water environmental capacity. The evolutionary history and application scenarios of major water quality models, and water environmental capacity calculation formulas are summarized. Through the analysis of calculation formulas for water environmental capacity, it is found that endogenous pollution factors influence the values of degradation coefficient K and retention coefficient R in water environmental capacity calculation though few studies consider such factors. Therefore, the quantification of endogenous pollution factors (particularly the rheological properties of bed sediments) is important and needs further study.
Highlights
As water environments are degrading globally, protecting them is becoming increasingly important [1,2,3,4]
Based on the definition of water environmental capacity and the mathematical models of water environmental capacity, scholars have derived formulas to calculate water environmental capacity [23]. After parameters such as concentration, volume, and discharge are given by the water quality models, water environmental capacity can be calculated by these formulas
According to Cai [28], water environmental pollution can be divided into exogenous pollution and endogenous pollution as follows: 1) exogenous pollution includes a series of natural pollution caused directly or indirectly by human activities, such as commercial and industrial activities, and agricultural production and 2) endogenous pollution typically refers to the pollution of a water body caused by the release of nutrient and inorganic salts from underwater bed sediments
Summary
Jing Yuan1, Bing Wei2, Jian Zhu2, Haidong Zhang2, and Guoliang Yu1* 1SKLOE, CISSE, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, 200240 Shanghai, China 2Guangxi T-energy Engineering Consulting Co., Ltd, 530023 Guangxi, China
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