中国水利水电科学研究院学报（中英文）2026，Vol.24Issue(1)：88-97,10.DOI:10.13244/j.cnki.jiwhr.20250062
澜沧江西双版纳段入汇支流水环境容量核算与总量控制研究
Water environmental capacity accounting and total load control for tributaries entering the Xishuangbanna Reach of the Lancang River
摘要
Abstract
In response to substandard water quality observed in parts of Xishuangbanna Prefecture,this study assessed the water quality status of major rivers,including the Nanguo,Liusha,Nana,Luosuo,and Nanla Rivers.The spatial distribution of pollution sources was analyzed,and the MIKE 11 model was employed to estimate the water environmental carrying capacities for chemical oxygen demand(COD),ammonia nitrogen(NH3-N),and total phos-phorus(TP)across designated control units.Strategies for the control and reduction of both point-and nonpoint-source pollution were also proposed.Results show that COD pollution primarily originates from urban domestic sewage(37％),rural domestic sewage(26％),and livestock and poultry farming(25％);NH3-N predominantly stems from urban domestic sewage(60％);and TP mainly arises from agricultural nonpoint sources(49％).The cal-culated carrying capacities for point sources are 14 657 t/a(COD),1274.35 t/a(NH3-N),and 167.80 t/a(TP),while those for nonpoint sources are 35 278 t/a(COD),3291.36 t/a(NH3-N),and 367.61 t/a(TP).Specifically,TP concentration in the Nanguo River(from the prefectural boundary to the Nagouba section)and both COD and TP concentrations in the Nanla River(from upstream to the Mengpengchahe section)exceed the total allowable loads for nonpoint-source pollution,requiring reductions of 2.01 t/a,182.40 t/a,and 22.24 t/a,respectively.Overall,water quality of major rivers remains relatively good;However,exceedances during the rainy season are primarily driven by agricultural runoff and livestock farming.Strengthening soil testing(i.e.,precise fertilization practices)and enhanc-ing the utilization of livestock and poultry manure are recommended to effectively mitigate nonpoint source pollution.This study provides a scientific basis for water environment management and supports the implementation of the River Chief System(RCS)in Xishuangbanna Prefecture.关键词
水环境容量/总量控制/点源污染/农田面源污染/水污染防治措施/MIKE11/西双版纳州Key words
water environmental capacity/total quantity control/point source pollution/farmland non-point source pollution/water pollution prevention and control measures/MIKE11/Xishuangbanna Prefecture分类
资源环境引用本文复制引用
金超,周锐,马巍,陈杰,窦娟,张旭..澜沧江西双版纳段入汇支流水环境容量核算与总量控制研究[J].中国水利水电科学研究院学报（中英文）,2026,24(1):88-97,10.基金项目
国家重点研发计划项目(2022YFC3202800) （2022YFC3202800）
长江生态环境保护修复联合研究二期项目(2022-LHYJ-02-0303) （2022-LHYJ-02-0303）
