CAJ | 학술논문

非点源污染已经成为水环境的主要污染源，区分河流水环境监测断面的点源污染与非点源污染显得十分必要。以广西入海河流南流江为研究背景，采用数字滤波法和水文估算法进行点源与非点源污染负荷的分割。分析结果显示，基于水文估算法计算的2003－2011年多年平均高锰酸盐指数、总磷、氨氮的非点源污染负荷占总负荷的比例分别为0．77、0．74、0．76；采用数字滤波法计算的2003－2011年多年平均高锰酸盐指数、总磷、氨氮的非点源污染负荷占总负荷的比例分别为0．59、0．64、0．66。结果表明，两种方法分割的非点源结果的变幅趋势相同，南流江的非点源污染在总污染负荷中的比例较高。
비점원오염이경성위수배경적주요오염원，구분하류수배경감측단면적점원오염여비점원오염현득십분필요。이엄서입해하류남류강위연구배경，채용수자려파법화수문고산법진행점원여비점원오염부하적분할。분석결과현시，기우수문고산법계산적2003－2011년다년평균고맹산염지수、총린、안담적비점원오염부하점총부하적비례분별위0．77、0．74、0．76；채용수자려파법계산적2003－2011년다년평균고맹산염지수、총린、안담적비점원오염부하점총부하적비례분별위0．59、0．64、0．66。결과표명，량충방법분할적비점원결과적변폭추세상동，남류강적비점원오염재총오염부하중적비례교고。
Non-point source pollution has become the major source of pollution of water environment .Point source pollution and non-point source pollution of river water environmental monitoring to distinguish sections is very necessary .This paper mainly intro‐duces the research progress at home and abroad about non point source pollution .This paper focuses on the pollution load partition of Nanliu River Basin in Guangxi Beibu Gulf Economic Zone .The segmentation of point source pollution and non-point source pollution of potassium permanganate index ,total phosphorus and ammonia nitrogen are made based on the hydrological estimation method and the digital filtering method .The hydrological estimation method results show that three indexes of non-point source pollution the to‐tal pollution load ratio is 0 .77 ,0 .74 and 0 .76 .And the digital filtering method results show that they are 0 .59 ,0 .64 and 0 .66 .Di‐viding two methods of non-point source is close to the result ,Nanliu River Basin is more serious .