CAJ | 학술논문

以渭河宝鸡市区段流域为研究对象，研究了沉积物中总有机质（OM）、总氮（TN）和总磷（TP）的分布特征，分析了沉积物碳-氮-磷两两间的耦合关系，并对渭河宝鸡段沉积物中营养盐的污染状况进行了评价.结果表明：沉积物中OM浓度为0．378%～1．702％，TN浓度为0．031%～0．335％，TP浓度为0．053%～0．100％，沉积物TOC与TN和TP两两间具有显著的相关性（P＜0．01），且主要来源于藻类和水生生物；通过对营养盐污染评价发现，该河段沉积物有机污染较轻（有机指数均值为0．129），处于较清洁状态，N、P污染相对严重，具有造成较小生态风险的可能性，应注意控制外源氮磷的输入.
이위하보계시구단류역위연구대상，연구료침적물중총유궤질（OM）、총담（TN）화총린（TP）적분포특정，분석료침적물탄-담-린량량간적우합관계，병대위하보계단침적물중영양염적오염상황진행료평개.결과표명：침적물중OM농도위0．378%～1．702％，TN농도위0．031%～0．335％，TP농도위0．053%～0．100％，침적물TOC여TN화TP량량간구유현저적상관성（P＜0．01），차주요래원우조류화수생생물；통과대영양염오염평개발현，해하단침적물유궤오염교경（유궤지수균치위0．129），처우교청길상태，N、P오염상대엄중，구유조성교소생태풍험적가능성，응주의공제외원담린적수입.
The distributions and inter relationship of organic matter,nitrogen and phosphorus in the surface sediments of Weihe River in Baoji City were analyzed,and the pollution level were also appraised. The results showed that the concentrations of OM,TN and TP in the sediment ranged from 0.378% to 1.702%,from 0.031% to 0.335%, and from 0.053%to 0.1%,respectively. The contents of TOC,TN and TP,in sediments were significantly correlation with each other. The results also showed nutrients predominantly originated from algaes and aquatic organisms. Through nutrient contamination evaluating the sediment,it showed that Weihe River in Baoji City was lightly polluted by organic matter (the average organic index was 0.129),but N and P pollution was serious relatively and had the possibility to cause small threat to the ecological system,so we should pay attention to the control of exogenous nitrogen and phosphorus input.