华北潘家口水库点源与非点源污染模拟研究

IF 2 Q3 Environmental Science

Water Quality Research Journal of Canada Pub Date : 2015-05-01 DOI:10.2166/WQRJC.2014.019

J. Huang, W. Xiang

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引用次数: 10

摘要

潘家口水库是拥有1400多万人口的天津市的主要供水水源。为了制定水源保护的流域管理战略规划，需要有可靠的点源污染和非点源污染信息。该方法已被广泛应用于流域尺度上PS和NPS污染的划分研究。本研究采用c++加载模拟程序(LSPC)模型对潘家口水库的PS和NPS源污染负荷进行了研究。利用2006 - 2010年的野外数据，建立了水文模型和水质模型，并对其进行了验证。研究发现，PS污染仍然是化学需氧量(COD)负荷的主要来源，约占水库年总负荷的四分之三;而近一半的总氮(TN)和总磷(TP)的年总负荷来自NPS污染。NPS污染的总氮和总磷负荷存在较大的季节变化。汛期NPS对TN和TP的贡献可达70%，冬季旱季NPS对TN和TP的贡献也可低至4%。

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Investigation of point source and non-point source pollution for Panjiakou Reservoir in North China by modelling approach

Panjiakou Reservoir is the main water supply source for Tianjin City, which has a population of over 14 million. In order to develop a watershed management strategic plan for source water protection, it is necessary to have reliable information on point source (PS) and non-point source pollution (NPS). The modelling approach has been frequently used in the study of partitioning of PS and NPS pollution on a basin scale. This study employed the Loading Simulation Program in C++ (LSPC) model to investigate the PS and NPS source pollution loadings to Panjiakou Reservoir. The hydrological model and the water quality model were developed and validated using field data from 2006 to 2010. It has been found that the PS pollution is still the major source for chemical oxygen demand (COD) loadings, accounting for about three-quarters of the total annual loadings to the reservoir; while near half of the total nitrogen (TN) and total phosphorus (TP) total annual loadings are from NPS pollution. There is a large seasonal variation for TN and TP loadings from NPS pollution. The contribution of TN and TP from NPS in the flooding seasons can reach 70%, whereas the contribution can also be as low as 4% during the dry season in the winter.

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来源期刊

Water Quality Research Journal of Canada WATER RESOURCES-

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Water Quality Research Journal publishes peer-reviewed, scholarly articles on the following general subject areas: Impact of current and emerging contaminants on aquatic ecosystems Aquatic ecology (ecohydrology and ecohydraulics, invasive species, biodiversity, and aquatic species at risk) Conservation and protection of aquatic environments Responsible resource development and water quality (mining, forestry, hydropower, oil and gas) Drinking water, wastewater and stormwater treatment technologies and strategies Impacts and solutions of diffuse pollution (urban and agricultural run-off) on water quality Industrial water quality Used water: Reuse and resource recovery Groundwater quality (management, remediation, fracking, legacy contaminants) Assessment of surface and subsurface water quality Regulations, economics, strategies and policies related to water quality Social science issues in relation to water quality Water quality in remote areas Water quality in cold climates The Water Quality Research Journal is a quarterly publication. It is a forum for original research dealing with the aquatic environment, and should report new and significant findings that advance the understanding of the field. Critical review articles are especially encouraged.