Simulation of non-point source pollution load in the Xiangtan Stream basin through swat model

2016 ◽  
Author(s):  
Huazhang Liu ◽  
Shihua Li ◽  
Qingwen Zhang
Keyword(s):  
Point Source ◽  
Swat Model ◽  
Pollution Load ◽  
Point Source Pollution ◽  
Non Point Source Pollution

Spatial Distribution of Non-Point Source Pollution in Nansihu Watershed Based on SWAT Model

2012 ◽  
Vol 518-523 ◽  
pp. 2812-2815
Author(s):  
Shuang Li ◽  
Zu Lu Zhang ◽  
Yuan Yuan Sun
Keyword(s):  
Spatial Distribution ◽  
Point Source ◽  
High Precision ◽  
Swat Model ◽  
The Other ◽  
Pollution Load ◽  
Point Source Pollution ◽  
Nps Pollution ◽  
Dissolved Form ◽  
Non Point Source Pollution

Non-point source (NPS) pollution load of N and P in Nansihu watershed were simulated based on SWAT model. The Sihe watershed was selected as typical watershed for east of the lake, and the Dongyu watershed was selected as typical watershed for west of lake. The two typical watersheds were simulated respectively, and then the models were used to simulate the other rivers basins in the Nansihu watershed. Data collected in the period from 2001 to 2007 was used for calibration, while data collected from 2008 to 2010 was used for validation. Then the spatial distribution of NPS pollution in Nansihu watershed (2010) was simulated with the validated model. The result indicated that the SWAT model could simulate the no-point source pollution in Nansihu watershed with high-precision. The watershed was polluted seriously with N and P. The TN was mainly composed of dissolved form, and the TP was mainly composed of adsorbed form.

scholarly journals Simulation of agricultural non-point source pollution in Xichuan by using SWAT model

2018 ◽  
Vol 113 ◽  
pp. 012167 ◽  
Author(s):  
Linan Xing ◽  
Jiane Zuo ◽  
Fenglin Liu ◽  
Xiaohui Zhang ◽  
Qiguang Cao
Keyword(s):  
Point Source ◽  
Swat Model ◽  
Point Source Pollution ◽  
Non Point Source Pollution

scholarly journals Research of method for non-point source pollution load

2020 ◽  
Vol 467 ◽  
pp. 012170
Author(s):  
Huadong Huang ◽  
Jing Zhang ◽  
Yongyu Song ◽  
Yuequn Lai
Keyword(s):  
Point Source ◽  
Pollution Load ◽  
Point Source Pollution ◽  
Non Point Source Pollution

scholarly journals Study on Total Amount Accounting of Pollutants Entering Qinghe River Basin

2021 ◽  
Vol 271 ◽  
pp. 02001
Author(s):  
Han Zhuo ◽  
Zhang Ji ◽  
Su Jialiang ◽  
Zheng Zhiyuan ◽  
Lu Shuaiyu ◽  
...  
Keyword(s):  
Point Source ◽  
Water Quality Monitoring ◽  
Pollution Source ◽  
Quality Monitoring ◽  
Monitoring Data ◽  
Pollution Load ◽  
Point Source Pollution ◽  
Input And Output ◽  
Total Amount Control ◽  
Non Point Source Pollution

The calculation of the total amount of pollutants entering the river is the key to the total amount control system. Since non-point source pollution has not been monitored normally and effectively, based on the principle of the balance of input and output of pollutants, the 2009-2013 Qinghe water quality monitoring data, pollution source survey data and monitoring data were used to establish a binary statistics of the total amount of pollutants model. MATLAB software is used to solve the model. The results show that the model has strong data assimilation ability, can accurately calculate the monthly COD inflow into the river, can divide the point source and non-point source pollution load, and can meet the needs of actual research.

Agricultural Nonpoint Source Pollution Model Analysis and Application

2012 ◽  
Vol 178-181 ◽  
pp. 926-929
Author(s):  
Qing Yang ◽  
Sheng Nan Sun ◽  
Zheng Hai Jiang ◽  
Li Xian Ying ◽  
Zhe Jun Liu
Keyword(s):  
Point Source ◽  
Best Management Practices ◽  
Management Practices ◽  
Swat Model ◽  
Model Analysis ◽  
Point Source Pollution ◽  
Mechanism Model ◽  
3S Technology ◽  
Improved Model ◽  
Non Point Source Pollution

With the point source pollution was effectively treated, non-point source pollution, especially the agricultural non-point source pollution (ANPSP), is becoming the main problem in environment. The research is focused on the model analysis and application, which could be scientifically distinguish and effectually control ANPSP. Four kinds of models were introduced here with the development of non-point source pollution, as experience statistical model, mechanism model, function model, improved model by 3S technology and the uncertain analyze. Among these models, HSPF and SWAT model were successfully applied in best management practices (BMP) for ANPSP control. In the future, our country should base on the introduction of the foreign mature techniques, which combine the 3S technology and the uncertain improved model, then enhance the autonomous model research and build the basic database.

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