Substrate Characterization of an Experimental Marsh and Three Natural Marshes
Abstract
Dredge material from the Gulf Intracoastal Waterway near Galveston, Tex., was used as a substrate material in the construction of an experimental intertidal salt marsh. Chemical and physical properties of dredge substrate samples at 270 sites were monitored over a 16‐month period. Cation exchange capacity (CEC), extractable phosphorus (P), total Kjeldahl nitrogen (TKN), NH4‐N, and organic matter increased from 3.0 to 7.4 meq/100 g, 24 to 96 µg P/g, 85 to 296 µg N/g, 3.0 to 9.9 µg N/g, and 0.2 to 0.5%, respectively. No significant increases in N and P were observed in the substrate due to fertilization.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 01, 1981
- Source ID
- 10.2136/sssaj1981.03615995004500060033x
Entities
People
- C. W. Lindau
- L. R. Hossner
Organizations
- United States Army Corps of Engineers