CAJ | 학술논문

通过对南通市老城区护城河濠河2008年-2012年水生生物监测结果与水质理化指标的综合分析表明，濠河由于定期从长江引水，水质稳中有升，总体以Ⅳ类为主，能满足其功能区水质需要。从生物多样性来看，浮游生物主要分布在“较丰富”级别，底栖生物由于水中沉沙、河道疏浚及历史污染等受多方面因素的影响，物种多样性较差，优势种明显；各指标在近几年都呈现不同程度的减少趋势，应引起重视。
통과대남통시로성구호성하호하2008년-2012년수생생물감측결과여수질이화지표적종합분석표명，호하유우정기종장강인수，수질은중유승，총체이Ⅳ류위주，능만족기공능구수질수요。종생물다양성래간，부유생물주요분포재“교봉부”급별，저서생물유우수중침사、하도소준급역사오염등수다방면인소적영향，물충다양성교차，우세충명현；각지표재근궤년도정현불동정도적감소추세，응인기중시。
According to analysis on the monitoring data that include aquatic, biologic, physical and chemical indicators of Haohe River in Nantong from 2008-2012 , the overall water quality maintained class Ⅳ or improved thanks to regular water in-flow from Yangtze River, meeting the functional needs of the area.From the perspective of biological diversity, the plankton main-ly distributed in“relatively rich” level, but the benthic diversity is poor and the dominant species has obvious advantages.This is caused by many factors such as water desilting, river dredging and pollution.It should be noted that these indexes showed a dete-riorating trend of different levels in recent years.