Non-point Source Pollution Load of Hongfeng Lake Reserve Based on Export Coefficient Model

Li Zhengdao; Liu Hongyan; Jiang Chang; Gu Xiaofeng; Tu Yu

doi:10.13961/j.cnki.stbctb.2020.02.028

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Non-point Source Pollution Load of Hongfeng Lake Reserve Based on Export Coefficient Model

- Non-point Source Pollution Load of Hongfeng Lake Reserve Based on Export Coefficient Model
- Bulletin of Soiland Water Conservation Vol. 40, Issue 2, Pages: 193-198(2020)
- 作者机构：
  
  1. 贵州大学农学院,贵州,贵阳,550025
  2. 贵州大学资源与环境工程学院,贵州,贵阳,550025
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2020.02.028
  CLC： X52;X503
- Published：2020
- 稿件说明：
移动端阅览
Li Zhengdao, Liu Hongyan, Jiang Chang, et al. Non-point Source Pollution Load of Hongfeng Lake Reserve Based on Export Coefficient Model[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 193-198.
DOI：

Li Zhengdao, Liu Hongyan, Jiang Chang, et al. Non-point Source Pollution Load of Hongfeng Lake Reserve Based on Export Coefficient Model[J]. Bulletin of Soiland Water Conservation, 2020, 40(2): 193-198. DOI： 10.13961/j.cnki.stbctb.2020.02.028.

摘要

[目的] 探究红枫湖保护区非点源污染及其与水质的关系，了解红枫湖非点源污染负荷现状，为红枫湖保护区非点源污染的防控提供科学依据。[方法] 通过改进的输出系数模型（IECM）研究红枫湖总氮（TN）和总磷（TP）污染负荷。[结果] 2016年TN，TP的非点源污染排放量为863.78和77.14 t，用经验系数计算的非点源污染排放量TN为701.19 t，TP为232.99 t，改进的输出系数模型加入了地形影响因子，具有更高的准确性。2016年非点源排放的TN，TP占总污染负荷的73.54%和82.54%，相较于2008年非点源污染负荷TN，TP占比分别增加了27.03%和19.69%，但水质总体为Ⅱ类。[结论] 目前非点源污染是红枫湖的主要污染源，但对水质的影响较小。

Abstract

[Objective] This paper aims to explore the non-point source pollution in Hongfeng Lake reserve and the relationship with it water quality

and understand the current status of non-point source pollution land

in order to provide the scientific evidence to prevent the non-point source pollution.[Methods] The total nitrogen (TN) and total phosphorus (TP) pollution load of Hongfeng Lake was studied by improved export coefficient model (IECM).[Results] The non-point source pollution emissions of TN and TP in 2016 were 863.78 t and 77.14 t respectively

and the non-point source pollution emissions of TN calculated by the empirical coefficient was 701.19 t

TP was 232.99 t

and the improved output coefficient model incorporated terrain factors increased accuracy greatly. In 2016

TN and TP of non-point source emissions accounted for 73.54% and 82.54% of the total pollution load. Compared with the non-point source pollution load in 2008

TN and TP accounted for 27.03% and 19.69%

respectively

but the water quality was generally Class Ⅱ.[Conclusion] At present

non-point source pollution is the main source of pollution of Hongfeng Lake

but it has little impact on water quality.

关键词

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references

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