Characteristics of Non-Point Source Pollution and Load of Weihe River Based on Storm Runoff Monitoring Data

LI Jia-ke; LI Huai-en; LIU Jian; ZHANG Tao; YANG Tao; MA Su-wen

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Characteristics of Non-Point Source Pollution and Load of Weihe River Based on Storm Runoff Monitoring Data

- Characteristics of Non-Point Source Pollution and Load of Weihe River Based on Storm Runoff Monitoring Data
- Bulletin of Soiland Water Conservation Vol. 27, Issue 2, Pages: 106-111(2008)
- 作者机构：
  
  西安理工大学西北水资源与环境生态教育部重点实验室,陕西,西安,710048
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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LI Jia-ke, LI Huai-en, LIU Jian, et al. Characteristics of Non-Point Source Pollution and Load of Weihe River Based on Storm Runoff Monitoring Data[J]. Bulletin of Soiland Water Conservation, 2008, 27(2): 106-111.
DOI：

LI Jia-ke, LI Huai-en, LIU Jian, et al. Characteristics of Non-Point Source Pollution and Load of Weihe River Based on Storm Runoff Monitoring Data[J]. Bulletin of Soiland Water Conservation, 2008, 27(2): 106-111. DOI：

摘要

2006年6—12月

对渭河临潼水文站断面5次暴雨洪水过程和3次基流的原状水和上清液进行了监测。结果表明

洪水期间

浑水COD

浑水TP

—N

浑水总氮(TN)等指标监测值都远大于基流监测值。浑水中COD

总磷(TP)

TN监测值高与表层土壤中天然腐殖质有关。上清液中TN和TP分别以水溶性氮和固态磷为主

浑水中COD

TN与SS有很好的相关性。采用平均浓度法计算了各指标的非点源污染平均浓度

运用水质水量相关法建立了各指标非点源污染负荷与地表径流量的相关方程。将以上两种方法所得非点源污染平均浓度和相关方程分别用于1991—1999年临潼断面非点源污染负荷预测的结果表明

基于该监测数据的两种方法计算所得结果具有较好的可靠性。

Abstract

From June to December of 2006

five storm events and three base-flow events at the Lintong hydrologic station were monitored.The quality of raw and clarified water from the events was analyzed.Results indicate that concentrations of SS

NO2—N and NO3—N

as well as COD

total P(TP)

and total N(TN) of raw water during flood are higher than those of base flow.High values of COD

and TN of raw water are related to natural humic substances in surface soil.Total N of clarified water is mainly made of dissolved nitrogen and total P is mainly made of particle phosphorus.COD TP and TN of raw water are closely related with SS.The mean concentration method was used to estimate the weighted mean concentration of non-point source pollution(NSP) for each element.The method of water quality and quantity correlation was used to establish the correlation equation between NSP load and surface runoff for each element.The calculated mean NSP concentration and the established correlation equation were then used to estimate NSP load at the Lintong hydrologic station on Weihe River from 1991 to 1999.The results from the two methods prove to be credible.

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