Felsenthal National Wildlife Refuge green-tree reservoir study

Dates

Publication Date: 2019-09-26
Start Date: 1990
End Date: 2016

Citation

Day, R.H., and McCoy, J.W., 2019, Felsenthal National Wildlife Refuge green-tree reservoir study: U.S. Geological Survey data release, https://doi.org/10.5066/F7WW7GZN.

Summary

A green-tree reservoir (GTR) is a stand of bottomland hardwoods that is intentionally flooded in the fall and winter to support migrating waterfowl. Bottomland hardwood forest plots, installed 1985-1987 in the GTR on Felsenthal National Wildlife Refuge (FNWR), are measured every 5-6 years to monitor tree survival, growth, and mortality. An accompanying datafile contains the names, locations, and elevations of the forest plots. These parameters are defined in the Entity and Attributes section of this metadata file. Historical Perspective: Permanent forest plots were established between 1985 and 1987 in forest stands within the GTR on FNWR by a team from the U.S. Army Corps of Engineers, Waterways Experiment Station (Teaford 1989). [...]

Summary

A green-tree reservoir (GTR) is a stand of bottomland hardwoods that is intentionally flooded in the fall and winter to support migrating waterfowl. Bottomland hardwood forest plots, installed 1985-1987 in the GTR on Felsenthal National Wildlife Refuge (FNWR), are measured every 5-6 years to monitor tree survival, growth, and mortality. An accompanying datafile contains the names, locations, and elevations of the forest plots. These parameters are defined in the Entity and Attributes section of this metadata file.

Historical Perspective:
Permanent forest plots were established between 1985 and 1987 in forest stands within the GTR on FNWR by a team from the U.S. Army Corps of Engineers, Waterways Experiment Station (Teaford 1989). A team from the U.S. Fish and Wildlife Service, National Wetlands Research Center (NWRC) was involved since the forest plots were installed with the intention of instituting a long-term study. Over time, NWRC transferred through a series of agencies and was eventually renamed in 2015 as the U.S. Geological Survey, Wetland and Aquatic Research Center. At the time of this data release in 2019, the plots have been measured six times (1990, 1995, 2001, 2006, 2011, and 2016) by teams led by three different principle investigators from this same research center under various research center names. This data release contains the static data of plot names, geographic coordinates, and surveyed elevation of each plot. Additional data releases present the tree measurements for each year the plots were measured. In the metadata for each year’s measurements, the agency and research center name at the time of measurement will be stated along with the phrase “eventually renamed in 2015 as the U.S. Geological Survey, Wetland and Aquatic Research Center.” At the time of this data release in 2019, there is a plan to continue forest plot measurements on FNWR into the future at regular 5-year intervals if possible, each time adding a data release of those measurements.

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Contacts

Point of Contact :: Richard H Day
Process Contact :: Richard H Day
Originator :: Richard H Day, John W McCoy
Metadata Contact :: Richard H Day
Publisher :: U.S. Geological Survey
Distributor :: U.S. Geological Survey - ScienceBase
SDC Data Owner :: Wetland and Aquatic Research Center
USGS Mission Area :: Ecosystems

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FNWR_ GTRS_Overview.xml Original FGDC Metadata	View	17.29 KB	application/fgdc+xml
Photo_DataReleaseLandingPage.jpg		203.59 KB	image/jpeg
FNWR_GTRS_PlotDescriptions.csv		3.29 KB	text/csv
FNWR_GTRS_MasterLegend.xlsx		15.8 KB	application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Purpose

Water levels within the GTR of FNWR are determined by the operation of a lock and dam downstream of the refuge operated by the U.S. Army Corps of Engineers and to some extent can be manipulated at the request of FNWR managers. Data is collected in the GTR bottomland hardwood forest plots to inform FNWR managers of the effects of past management of manipulated water levels and adapt future management of hydrology to improve GTR forest health.

Felsenthal National Wildlife Refuge green-tree reservoir study

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