浮游硅藻生物指数法评价赣江水系水质健康状况研究  

Relationship between Functional Groups of Planktonic Diatom and Environmental Factors in Ganjiang River Basin

作　　者：张萌 黄丹 刘足根 李惠民 

机构地区：[1]江西省环境保护科学研究院,南昌330029 [2]萍乡市环境科学研究所,江西萍乡337000

出　　处：《江西科学》2015年第3期293-302,348,共11页Jiangxi Science

基　　金：国家重大科技专项子课题(2012zx07501001-06);江西省社发支撑计划项目(20112BBG70014);江西省青年科学基金(20114BAB213004);江西省软科学项目(20111BAA10034;20122BBA10058)

摘　　要：应用较敏感的水体富营养化评价指标——富营养化硅藻指数(TDI)对南方丰水型河流赣江流域的富营养化状态进行评估。结果表明,丰水期的富营养化状态(TDI=34.35)优于枯水期(TDI=56.98)以及平水期(TDI=65.19),依据TDI富营养化评分标准,丰水期处于贫营养状态,枯水期处于中营养状态,平水期则处于富营养化状态。因此,河流水质健康状况为丰水期>枯水期>平水期。从不同水情期的赣江全流域富营养化程度的空间差异来看,赣江下游的袁河中下游和干流下游(如南昌段)是河流超富营养化的主要区域,其次是赣江上游支流的梅江下游、绵水下游和上犹江下游的城市段面在平水期呈现富营养化-超富营养化过渡状态。The first assessment of a river eutrophication in South China was conducted by application of an international and sensitive to water eutrophication evaluation index-Trophic Diatom Index （TDI） in Ganjiang River Basin. The results showed that TDI value of high water period （34.35） 〈 that of low water period （56.98） and normal water period （65.19）. According to TDI eutrophica- tion evaluation standard, the river with high water stage was in the oligotrophic status, the river with low water stage in the mesotrophic status, and the river with normal water stage in the state of eu- trophication. River health status in different periods was in order as follows：the high water period 〉 low water period 〉 normal water period. Considering the spatial differences of river eutrophication in the different periods of Ganjiang River Basin, the downstream of Ganjiang River （ e. g. the reach of Nanchang） and the middle and downstream of Yuanhe River were the main reaches of supereutrophi- cation, and the reaches of city pollution sections along the downstream of Meijiang River, Mianshui River and Shangyoujiang River were in the transition of eutrophication to hyper-eutrophication in nor- mal water stage of the upstream of the Ganjiang River.

关 键 词：浮游硅藻 赣江流域 TDI 河流健康 

分 类 号：X171[环境科学与工程—环境科学]