摘要
以淮河上游息县水文站以上为研究区域,基于2000年以后土地利用数据分析不同土地利用对流域非点源污染的影响,根据流域附近5个气象站2002～2008年资料应用P-M法耦合植物生长模型计算流域潜在蒸散发作为模型的蒸发输入,并基于2002～2008年63个雨量站资料及尺度为1∶200 000土壤类型图、土壤化学属性和农业施肥资料,运用SWAT模型模拟分析流域非点源污染时空分布特征,统计分析了流域内不同土地利用方式下产污特征。结果表明,在降雨量与土壤质地相同情况下,非点源污染负荷旱地>水田>林地,可为淮河上游生态建设提供参考。
Taking above the Xixian hydrological station in upper reaches of the Huaihe river basin for an example, the influence of different land utilization on non-point source pollution is analyzed on the basis of data after 2000 year. Ac- cording to the data of five meteorological stations near the basin from 2002 to 2008, combination of Penman-Monteith method and simplified plant growth model （EPIC） is used to calculate potential evapotranspiration, which is taken as the model input. And then the soil and water assessment tool （SWAT） model is used to simulate time and space distribution of non-point source pollution with the data of 63 rainfall stations in 2002~2008, soil category map （1：200000）, soil chemical attribution and agricultural fertilizer data. And then the pollution characteristics are statistical analysis under the different land utilization. The results show that the non-point source pollution load is ranked as dry land, paddy field, for est land under the same conditions of rainfall and soil texture, which can provide reference for ecological protection in up- per reaches of the Huaihe river.
出处
《水电能源科学》
北大核心
2012年第4期100-102,22,共4页
Water Resources and Power
基金
水利部公益性行业科研专项基金资助项目(201001052)
关键词
淮河上游
土地利用变化
非点源污染模拟
SWAT模型
upper reaches of the Huaihe river
land utilization change
non-point source pollution simulation
SWAT model
