As part of the Gas Research Institute Wetland Corridors Program conducted to document impacts of existing pipelines on the wetlands they traverse, this report presents results of a survey performed in 1991 in an emergent intertidal estuarine wetland in Terrebonne Parish, Louisiana, at the site of three pipelines installed between 1958 and 1969.
Vegetation there comprises three native tidal marsh grasses.
Vegetative differences attributable to the presence of the pipelines were not obvious. However, because of the presence of a canal west of the 1969 pipeline, vegetation was less abundant there, and one of the grasses was absent from most plots. The study indicates that when ROWs through brackish marsh are restored to the original elevations, they are revegetated with native species similar to those of surrounding areas. Appendixes include a definition of jurisdictional wetlands, definitions and equations used in data analysis, and plant species list, areal coverage data, and species distribution. You must be a registered user to purchase this document.