固定源排放负荷测量的不确定性对河流断面氮磷模拟影响研究Impact of Uncertainty of Measurement of Point Source Emission Load on Nitrogen and Phosphorus Simulation of River Section
赵浩然;赵书畅;董欣;曾思育;刘毅;
摘要(Abstract):
以位于保定市的府河流域作为案例研究,利用2013—2016年保定市固定源排放数据,根据测量允许的不同误差限,生成具有不同偏差的固定源排放序列,运用SWAT模型分析排放负荷测量的不确定性对下游河流氮磷浓度模拟造成的影响。研究发现,当固定源排放负荷测量的不确定性增大时,在下游断面的氮磷模拟变化范围都有所上升,但对总磷的负荷模拟比对氨氮、总氮的负荷模拟影响要小。研究流域污染负荷时,氨氮、总氮、总磷的固定源排放测量相对误差限建议分别不超过20%、10%、20%。
关键词(KeyWords): 水质模型;相对误差限;氮磷;SWAT模型;流域
基金项目(Foundation): 水体污染控制与治理科技重大专项大清河流域(白洋淀)水质目标综合管理示范研究(2018ZX07111004)
作者(Authors): 赵浩然;赵书畅;董欣;曾思育;刘毅;
DOI: 10.14068/j.ceia.2020.06.011
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