Pipeline Corridors through wetlands -- Impacts on plant communities: Mill Creek Tributary Crossing, Jefferson County, New York, 1992 Survey
- Trinity Christian Coll., Palos Heights, IL (United States). Dept. of Biology
- Argonne National Lab., IL (United States)
The goal of the Gas Research Institute Wetland Corridors Program is to identify representative 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 the results of the survey July 1992, at the Mills Creek tributary crossing, Jefferson County, New York. Data were collected from three wetland communities along the 1991 pipeline and compared with predisturbance data obtained in a June 1991 survey. Within one year after pipeline installation, 50% of the soil surface of the ROW in the scrub-shrub community was covered by emergent vegetation. Average wetland values for the ROW in 1992 were lower than in 1991, indicating that the removal of woody plants resulted in a community composed of species with greater fidelity to wetlands. In the emergent marsh community after one year, the average percentage of surface covered by standing water was greater in the ROW than in the adjacent natural areas. The ROW in the forested wetland community also contained standing water, although none was found in the natural forest areas. The entire study site remains a wetland, with the majority of plant species in all sites being either obligate or facultative wetland species. Weighted and unweighted average wetland indices for each community, using all species, indicated wetland vegetation within the newly established ROW.
- Research Organization:
- Gas Research Inst., Chicago, IL (United States). Environment and Safety Research Group; Argonne National Lab., IL (United States)
- Sponsoring Organization:
- Gas Research Inst., Chicago, IL (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10115001
- Report Number(s):
- GRI--94/0423; ON: DE95005046; CNN: GRI Contract number 5088-252-1770
- Country of Publication:
- United States
- Language:
- English
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