Long-term Nutrient (N, P) Additions to a Tidal Freshwater Marsh
Long-term Nutrient (N, P) Additions to a Tidal Freshwater Marsh
Dr.
Christopher
B.
Craft
Indiana University at Bloomington
Indiana University - School of Public and Environmental Affairs
Room 408. MSB II.
702 N. Walnut Grove Ave.
Bloomington
Indiana
47405
USA
ccraft@indiana.edu
https://orcid.org/0000-0002-6225-786X
Georgia Coastal Ecosystems LTER Project
Dept. of Marine Sciences
University of Georgia
Athens
Georgia
30602-3636
USA
gcelter@uga.edu
https://gce-lter.marsci.uga.edu/
Dr.
Christopher
B.
Craft
Indiana University at Bloomington
Indiana University - School of Public and Environmental Affairs
Room 408. MSB II.
702 N. Walnut Grove Ave.
Bloomington
Indiana
47405
USA
ccraft@indiana.edu
https://orcid.org/0000-0002-6225-786X
Principal investigator
Dr.
Ellen
Herbert
Ducks Unlimited
Ducks Unlimited
Memphis
Tennessee
USA
eherbert@ducks.org
Co-investigator
2026
Project Goals
The goal of this project is to evaluate the effects of long-term (>5 years) additions of nitrogen (N), phosphorus (P) and N+P on a Zizaniopsis milacea tidal freshwater marsh.
Associated GCE LTER research questions
Area 3: Responses to Salinity and Inundation (more information)
freshwater wetlands
marsh
biomass
nutrients
LTER
NSF
GCE
plants
Zizaniopsis
nutrient chemistry
plant ecology
primary production
Overall geographic extent of the research project
-81.493498
-81.475900
31.348774
31.334364
2004-03-15
estuary marsh complex
Carrs Island - Freshwater marsh site along the northern bank of Hammersmith Creek at the south end of Carrs Island. Upland area is heavily forested. Northern 3/4 of the island was diked for rice agriculture, but the southern 1/4 is undisturbed. A hydrographic sonde is deployed in the Altamaha River near Hammersmith Creek, adjacent to this site.
-81.493498
-81.475900
31.348774
31.334364
Map (Google Earth KML/KMZ or map image)
https://gce-lter.marsci.uga.edu/private/registration/files/maps/GCE-16-2011_Maps_Craft_Herbert_GCE7_N-P_2011.kml
Project Location
GCE site 7 - Hammersmith Creek
Equipment
One inch diameter pvc poles (2 meters in height) to demarcate plots. 16 plots with 4 poles each equals 64 poles total.
Plant and Animal Collection
Biomass is non-destructively samples in permanent plots. Five green leaves are clipped from each plot annually to measure leaf C, N and P.
Project description or documentation
https://gce-lter.marsci.uga.edu/private/registration/files/documents/GCE-16-2011_Documents_Wetland_Fertilization_Experimental_Design_(2011).doc