| Abstract: | Four wetlands were compared with respect to their effectiveness in decreasing suspended solids and nutrient concentrations in runoff to lakes immediately downstream from the wetlands. An artificial impoundment in one of the wetlands increased settling of suspended solids. A decrease of nutrients in this wetland was probably the result of high assimilation rates associated with a dense stand of cattails. Two of the other three wetlands consist of open water and land areas, both of which contain abundant vegetation. Drainage from land areas within the wetlands may have lowered the overall effectiveness of the wetlands in decreasing sediment and nutrient concentrations. The third wetland was a constructed wetland that was ineffective in decreasing sediment or nutrient concentrations because its storage capacity was too small to prevent frequent flushing of accumulated sediment. Sediment concentrations in discharge from this wetland were as much as 22 times greater than the already high sediment concentrations in the inflow. (Author ‘s abstract) |
| Genre: | USGS Numbered Series |
| ProdID: | 26376 |
| Citation Author: | Brown, R. G. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | - |
| Citation Editor: | |
| Citation End Page: | |
| Citation Issue: | |
| Citation Keywords: | |
| Citation Language: | ENGLISH |
| Citation Larger Work Title: | |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | iv, 32 p. :ill., maps ;28 cm. |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 85-4170 |
| Citation Search Results Text: | Effects of wetlands on quality of runoff entering lakes in the Twin Cities Metropolitan Area, Minnesota; 1985; WRI; 85-4170; Brown, R. G. |
| Citation Start Page: | |
| Citation Volume: | |
| Citation Year: | 1985 |
| Type: | citation/reference |
| Text: | Effects of wetlands on quality of runoff entering lakes in the Twin Cities Metropolitan Area, Minnesota; 1985; WRI; 85-4170; Brown, R. G. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1985/4170/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1985/4170/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
