辽河大伙房水库汇水区农业非点源污染入库模拟

J4 ›› 2012, Vol. 42 ›› Issue (5): 1462-1468.

辽河大伙房水库汇水区农业非点源污染入库模拟

汤洁, 杨巍, 李昭阳, 卞建民|刘畅

吉林大学环境与资源学院|长春130012

收稿日期:2012-03-07 出版日期:2012-09-26 发布日期:2012-09-26
作者简介:汤洁(1957-)|女|教授|博士生导师|主要从事生态环境系统工程及其数字化研究|Tel：0431-85159440|E-mail:tangjie@jlu.edu.cn
基金资助:
国家科技重大专项项目（2009ZX07528-006-01-03）

Simulation on the Inflow of Agricultural Non-Point Sources Pollution in Dahuofang Reservoir Catchment of Liao River

TANG Ji, YANG Wei, LI Zhao-yang, BIAN Jian-min, LIU Chang

College of Environment and Resources, Jilin University, Changchun130012, China

Received:2012-03-07 Online:2012-09-26 Published:2012-09-26

摘要/Abstract

摘要：

利用输出系数法和SWAT模型，对大伙房水库汇水区农业非点源污染(ANSP)进行了入库模拟研究，并用2006－2009年的水文和水质监测数据对模型进行了校准和验证。研究结果表明：汇水区年均输入到水库的泥沙量、总氮和总磷负荷分别为82.65×10³ t、1 873.49 t和81.97 t；月入库泥沙量、总氮和总磷负荷与径流量有着较强的相关性，ANSP的产生和迁移受降水、径流过程影响很大，每年7、8月份的氮、磷和泥沙流失量达到年内最大值，分别占全年流失总量的42.64%、44.42%和67.91%。水库汇水区各流域对水库氮、磷污染的贡献率由大到小依次为：浑河流域（清原段）、苏子河流域、社河流域和水库周边小流域。

关键词: 大伙房水库, SWAT模型, 农业非点源污染, 泥沙, 总氮, 总磷

Abstract:

This study was to simulate the agricultural non-point source pollution (ANSP) input of Dahuofang reservoir catchment area in Liaoning Province in China based on export coefficient method and SWAT model, and the simulation model was calibrated and verified by the monitoring data of hydrology and water quality from 2006 to 2009. The results of model evaluation showed that the annual load of sediment, total nitrogen and total phosphorus was 82.65×10³ t, 1 873.49 t and 81.97 t. Besides, the monthly amount of the load was strongly relevant with runoff. The generation and migration of ANSP was substantially influenced by the rainfall and runoff. The loss of sediment, nitrogen and phosphorus was up to the maximum in July and August each year, accounting for 67.91%, 42.64% and 44.42% of the annual loss amount respectively. The contribution rate of nitrogen and phosphorus pollution caused by the reservoir catchment area as Hun River, Suzi River, She River and small rivers was descending.

Key words: Dahuofang reservoir, SWAT model, agricultural non-point source pollution, sediment, total nitrogen, total phosphorus

中图分类号:

汤洁, 杨巍, 李昭阳, 卞建民, 刘畅. 辽河大伙房水库汇水区农业非点源污染入库模拟[J]. J4, 2012, 42(5): 1462-1468.

TANG Ji, YANG Wei, LI Zhao-yang, BIAN Jian-min, LIU Chang. Simulation on the Inflow of Agricultural Non-Point Sources Pollution in Dahuofang Reservoir Catchment of Liao River[J]. J4, 2012, 42(5): 1462-1468.

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