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Pipeline corridors through wetlands -- Impacts on plant communities: Little Timber Creek Crossing, Gloucester County, New Jersey. Topical report, August 1991--January 1993
| 题名： | Pipeline corridors through wetlands -- Impacts on plant communities: Little Timber Creek Crossing, Gloucester County, New Jersey. Topical report, August 1991--January 1993 |
| 作者： | Van Dyke, G.D.;Alsum, S.K.;Zimmerman, R.E.;Shem, L.M.; |
| 关键词： | 03 NATURAL GAS; WETLANDS; ENVIRONMENTAL QUALITY; PIPELINES; ENVIRONMENTAL EFFECTS; PLANTS; POPULATION DYNAMICS; NEW JERSEY; PROGRESS REPORT; NATURAL GAS DISTRIBUTION SYSTEMS; COMPILED DATA; SPECIES DIVERSITY |
| 摘要： | The goal of the Gas Research Institute Wetland Corridors Program is to document impacts of existing pipelines on the wetlands they traverse. To accomplish this goal, 12 existing wetland crossings were surveyed. These sites varied in elapsed time since pipeline construction, wetland type, pipeline installation techniques, and right-of-way (ROW) management practices. This report presents results of a survey conducted over the period of August 5--7, 1991, at the Little Timber Creek crossing in Gloucester County, New Jersey, where three pipelines, constructed in 1950, 1960, and 1990, cross the creek and associated wetlands. The old side of the ROW, created by the installation of the 1960 pipeline, was designed to contain a raised peat bed over the 1950 pipeline and an open-water ditch over the 1960 pipeline. The new portion of the ROW, created by installation of the 1990 pipeline, has an open-water ditch over the pipeline (resulting from settling of the backfill) and a raised peat bed (resulting from rebound of compacted peat). Both the old and new ROWs contain dense stands of herbs; the vegetation on the old ROW was more similar to that in the adjacent natural area than was vegetation in the new ROW. The ROW increased species and habitat diversity in the wetlands. It may contribute to the spread of purple loosestrife and affect species sensitive to habitat fragmentation. |
| 总页数： | 55p |
| 报告类型： | 科技报告 |
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