ScholarLens Back to search
2013•Haiyang huzhao tongbaoRequires access

INVESTIGATION AND EVALUATION OF THE FISHERY ECOLOGICAL ENVIRONMENT OF THE YELLOW RIVER DOWNSTREAM

Jinlu Zhang

Open publisher page 0 citations

Abstract

Since 2004,seven consecutive years,the fishery ecological environments of the Yellow River downstream(Shandong segment) were surveyed.The results showed that: the inter-annual variation of the Yellow River NH+4,NO-2,NO-3 contents were not obvious;the TP contents of Upstream were increased and then decreased,estuary performance for the overall was increased;TP contents of the two stations have a clear downward trends;COD showed stable in seven years.Using the trophic state index method to evaluate the nutritional status of the lower Yellow River(Shandong),Nutritional states were moderate nutrient to eutrophication in seven years.The qualitative evaluation was good to moderate pollution.

About this research paper

What this paper is about

Since 2004,seven consecutive years,the fishery ecological environments of the Yellow River downstream(Shandong segment) were surveyed.The results showed that: the inter-annual variation of the Yellow River NH+4,NO-2,NO-3 contents were not obvious;the TP contents of Upstream were increased and then decreased,estuary performance for the overall was increased;TP contents of the two stations have a clear downward trends;COD showed stable in seven years.Using the trophic state index method to evaluate the nutritional status of the lower Yellow River(Shandong),Nutritional states were moderate nutrient to eutrophication in seven years.The qualitative evaluation was good to moderate pollution.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Since 2004,seven consecutive years,the fishery ecological environments of the Yellow River downstream(Shandong segment) were surveyed.The results showed that: the inter-annual variation of the Yellow River NH+4,NO-2,NO-3 contents were not obvious;the TP contents of Upstream were increased and then decreased,estuary performance for the overall was increased;TP contents of the two stations have a clear downward trends;COD showed stable in seven years.Using the trophic state index method to evaluate the nutritional status of the lower Yellow River(Shandong),Nutritional states were moderate nutrient to eutrophication in seven years.The qualitative evaluation was good to moderate pollution.

Key concepts: Eutrophication, Estuary, Trophic level, Environmental science, Upstream and downstream (DNA), Downstream (manufacturing), Nutrient, Fishery

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
INVESTIGATION AND EVALUATION OF THE FISHERY ECOLOGICAL ENVIRONMENT OF THE YELLOW RIVER DOWNSTREAM — Research Paper | ScholarLens