北京师范大学学报（自然科学版）2016，Vol.52Issue(3)：317-321,5.DOI:10.16360/j.cnki.jbnuns.2016.03.011
应用硅藻指数评价渭河流域水生态健康状况
Assessing water quality with diatom indices in the Wei River basin
摘要
Abstract
Diatom indices have been widely used to evaluate health of aquatic ecosystem of freshwater bodies.Sixty sampling sites were chosen to investigate correlation between diatom indices and water quality in the Wei River basin in October 2012.A total of 221 diatom taxa from 26 genera were identified.The richest species included Naviculacryptocephala,Nitzschiapalea,Cocconeisplacentula,Gomphonemaparvulum and Achnanthesminutissima.By Spearman's correlation analysis,all diatom indices showed significant correlation with river width,except IDAP.Only DI-CH showed significant correlation with dissolved oxygen.SHE,IPS and DI-CH showed strong correlation with NO-2 and NH+4 .Ecological state was classified into five different types according to Lenoir and Coste.IDAP,IPS,IBD and LOBO diatom indices performed better than other indices,healthy sites accounted for more than 45%.On the contrary,TDI,IDP,CEE and DI-CH indicated that health of the Wei River basin was relatively poor.The rest of diatom indices tended to show a moderate condition.关键词
硅藻指数/渭河/环境因子/健康评价Key words
diatom indices/Wei River/environment factor/health assessment分类
资源环境引用本文复制引用
刘麟菲,徐宗学,殷旭旺,武玮,闵文武..应用硅藻指数评价渭河流域水生态健康状况[J].北京师范大学学报（自然科学版）,2016,52(3):317-321,5.基金项目
国家自然科学基金资助项目(51279005) （51279005）
国家水体污染控制与治理科技重大专项基金资助项目(2009ZX07212-002) （2009ZX07212-002）
国家国际科技合作专项基金资助项目(2009DFA22980) （2009DFA22980）
