Habitat Development Field Investigations Buttermilk Sound Marsh Development Site Atlantic Intracoastal Waterway, Georgia. Appendix A. Propagation of Marsh Plants and Postpropagation Monitoring.

摘要

A field study to test the feasibility and impact of developing a marsh on dredged material was initiated in 1975 at Buttermilk Sound near the mouth of the Altamaha River, Glynn County, Ga. The 2-ha island, in the Atlantic Intracoastal Waterway, is an area of dredged material disposal for maintenance dredging of the waterway. This report presents results of habitat development activities between spring 1975 and fall 1977. The site was graded to a 3.7% slope and partitioned into three elevation zones which were subjected to tidal inundation less than 6 hours each day, 6 to 18 hours each day, and more than 18 hours each day, respectively. Each zone was treated with a combination of experimental plantings including seven marsh plant species, two forms of propagule, and five patterns of fertilizer application. The plants were monitored for their response to fertilizer and inundation levels. Within the plots, interstitial water chemistry, soil chemistry, soil microbiology, and invading plant species were monitored. Aquatic biota and wildlife observations were made. Also included are Appendices B-I which include: Graphic Representation of Buttermilk Sound Dependent Variables; Graphic Representation of Root to Shoot Ratios and Integrated Biomass; Correlation Matrix for Buttermilk Sound for Dependent Variables; and Spartina alternifloria Transplantation.