Effectiveness of mitigation measures with constructed forested wetlands in Maryland
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Abstract
Intensive research on six constructed forested wetlands in Central Maryland was conducted in 1993-1996 to determine success of these habitats as functional forested wetlands for wildlife. Areas studied ranged in size from 2 to 35 acres and were constructed by private companies under contract with three mitigation agencies. Adjacent natural forested wetlands were used as reference sites where similar data were collected. Based on data from the first four years of this study it appears that it will take 35-50 years before these areas have forested wetland vegetation and wildlife similar to that found on mature forested wetlands. This long-time period is based on the high mortality and slow growth of nursery-stock trees and shrubs transplanted on the areas. Mortality and slow growth resulted mostly from excessive surface water on the sites. The level of ground water did not appear to be a factor in regard to transplant mortality. Green ash was the woody transplant species that had the least mortality. Sampling of vegetative ground cover with one-meter square quadrats showed the predominance of grasses and herbs. [abridged abstract]
Suggested Citation
Perry, M., 1997, Effectiveness of mitigation measures with constructed forested wetlands in Maryland, chap. of The Future of Wetland Assessment: Applying science through the hydrogeomorphic assessment approach and other approaches. Abstracts of a meeting held March 10-13, 1997, Parole, Maryland., p. 69-70.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Effectiveness of mitigation measures with constructed forested wetlands in Maryland |
| Year Published | 1997 |
| Language | English |
| Publisher | Association of State Wetland Managers and Institute for Wetland Science and Public Policy. |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Larger Work Type | Book |
| Larger Work Subtype | Other Government Series |
| Larger Work Title | The Future of Wetland Assessment: Applying science through the hydrogeomorphic assessment approach and other approaches. Abstracts of a meeting held March 10-13, 1997, Parole, Maryland. |
| First page | 69 |
| Last page | 70 |