scholarly journals Estimation of non-point source pollution loads by improvising export coefficient model in watershed with a modified planting pattern

2017 ◽  
Vol 82 ◽  
pp. 012068 ◽  
Author(s):  
F Dong ◽  
X B Liu ◽  
W Q Peng ◽  
L Wang
Keyword(s):  
Point Source ◽  
Point Source Pollution ◽  
Planting Pattern ◽  
Export Coefficient Model ◽  
Export Coefficient ◽  
Non Point Source Pollution ◽  
Pollution Loads

Study on the Characteristics and Non-point Source Pollution Loads in Stormwater Runoff of Shihwa Lake

2011 ◽  
Vol 14 (1) ◽  
pp. 40-50 ◽  
Author(s):  
Kong-Tae Ra ◽  
Kyung-Tae Kim ◽  
Joung-Keun Kim ◽  
Jae-Hyun Bang ◽  
Jung-Moo Lee ◽  
...  
Keyword(s):  
Point Source ◽  
Stormwater Runoff ◽  
Point Source Pollution ◽  
Non Point Source Pollution ◽  
Pollution Loads

Pollution Load Estimation of Weihe River Watershed above Linjiacun Section Based on Characteristic Section Load Method

2015 ◽  
Vol 744-746 ◽  
pp. 2382-2385 ◽  
Author(s):  
Lei Zhu ◽  
Jin Xi Song ◽  
Chang Qin Zheng
Keyword(s):  
Point Source ◽  
Quality Parameter ◽  
Water Quality Parameter ◽  
Load Estimation ◽  
Pollution Load ◽  
Point Source Pollution ◽  
River Watershed ◽  
Weihe River ◽  
Non Point Source Pollution ◽  
Pollution Loads

Weihe River Watershed above Linjiacun Section is taken as the research objective in this paper and NH3-N is chosen as the water quality parameter. According to the discharge characteristics of point source pollutions and non-point source pollutions, a new method to estimate pollution loads-characteristic section load method is suggested and point source pollution and non-point source pollution loads of Weihe River Watershed above Linjiacun Section are calculated in the rainy, normal and dry season in the year 2007. The results show that the monthly point source pollution loads of Weihe River Watershed above Linjiacun Section are discharged stably, the monthly non-point source pollution loads of Weihe River Watershed above Linjiacun Section change greatly, the non-point source pollution load proportions of total pollution load of NH3-N are gradually decreased in the rainy, normal and wet periods.

Estimating Agricultural Non-Point Source Pollution in the Upper Huairou Reservoir Using the Export Coefficient Model

2013 ◽  
Vol 807-809 ◽  
pp. 1796-1799 ◽  
Author(s):  
Wei Wei Zhang ◽  
Hong Li
Keyword(s):  
Point Source ◽  
River Basin ◽  
Total Nitrogen ◽  
Total Phosphorus ◽  
Scientific Basis ◽  
Point Source Pollution ◽  
Nitrogen And Phosphorus ◽  
Export Coefficient ◽  
Phosphorus Loads ◽  
Non Point Source Pollution

Quantifying agricultural non-point pollution load accurately and understanding contribution of the pollution sources clearly is the base how to control non-point source pollution effectively. Pollution loads from agricultural non-point source in the upper Lianghuai basin of Huairou Reservoir, including Huaisha River and Huaijiu River basin, were estimated according to export coefficient modeling. The results show that total nitrogen and total phosphorus loads in Lianghuai basin respectively are 322.52 t and 35.769 t in 2011.The total nitrogen and total phosphorus load intensities in Huaisha River basin are higher than that in Huaijiu River basin. Farmland planting including orchard and cropland, livestock and poultry breeding and rural domestic waste make a greater contribution to total nitrogen and total phosphorus loads. The study can provide scientific basis for further understanding characteristics of the nitrogen and phosphorus loads and agricultural structure adjustment.

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