Open AccessEstimation and Analysis of Water Environment Capacity: A Case Study of Huaxi Watershed in Guizhou Province
Author(s) -
Haiyang Dong,
Chong Lin,
Gao Cong
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/525/1/012013
Subject(s) - pollutant , watershed , environmental science , carrying capacity , water quality , pollution , hydrology (agriculture) , water resource management , environmental engineering , estimation , engineering , geotechnical engineering , computer science , ecology , systems engineering , machine learning , biology
A one-dimensional water quality mathematical model was put forward to calculate the water environmental carrying capacity(WECC) for rivers in Huaxi District. The river system of Huaxi district is divided into four basins. Based on field observation and numerical simulation, the pollutant degradation coefficients and diffusion coefficient for different river districts were determined to explore the WECCs of COD, NH 3 -N and TP. It reflects the pollutant carrying capacity of different basins under the hydrological condition of 90% guarantee rate, which plays an important role in pollution control and water environmental protection.