CAJ | 학술논문

为了给流域污染物总最控制及分配工作提供理论依据,利用SWAT模型分析了大宁河巫溪水文站控制流域污染物负荷分布特性,结果表明:耕地是泥沙和总磷污染的主要来源,泥沙和总磷负荷分别占整个流域的95%和50%以上;后溪河流域是整个流域内污染负荷最高的支流流域,泥沙贡献率为46.02%,总磷负荷贡献率为60.15%;流域西南部的土壤侵蚀现象较为严重,尤其是子流域17和20;东溪河内子流域7是总磷负荷较高的地区,应重点进行控制.
위료급류역오염물총최공제급분배공작제공이론의거,이용SWAT모형분석료대저하무계수문참공제류역오염물부하분포특성,결과표명:경지시니사화총린오염적주요래원,니사화총린부하분별점정개류역적95%화50%이상;후계하류역시정개류역내오염부하최고적지류류역,니사공헌솔위46.02%,총린부하공헌솔위60.15%;류역서남부적토양침식현상교위엄중,우기시자류역17화20;동계하내자류역7시총린부하교고적지구,응중점진행공제.
To provide theoretical basis for the work of pollutant total amount control and allocation.the SWAT model is rail to analyse the characteristics of the pollution load distribution in Daning River watershed.The simulation results show that cultivated land is the main source of sediment and TP.sediment load accounts for 95％of total load and 50％ for total phosphours(TP).Houxi River watershed.where sediment load accounts for 46.02％of the whole basin load and 60.15％ for TP.takes on a higher pollutant load than the other two trib-utaries.The soil erosion is much serious in the southwest of the basin.especially in sub.basin 17 & 20.Sub.ba-sin 7 possesses the highest TP load in Daning River watershed，and should be controlled preferentially.