Skip to main content
USGS - science for a changing world

Brazoria NWR Prairie Resilience Data

Dates

Publication Date
Start Date
1996
End Date
1998

Citation

Grace, J.B., Allain, L.K., and Moss, R., 2018, Brazoria NWR Prairie resilience data: U.S. Geological Survey data release, https://doi.org/10.5066/P9MOHC0C.

Summary

In 1996, 400 tree-centered plots were established by first randomly choosing x- and y- coordinates from an imaginary grid overlaying the study area. Each random point was also randomly assigned a tree-size category from a pre-determined sampling scheme. The scheme was to include 20 trees from each of 5 size categories. Size/height categories were: less than 0.1m, 0.1-1m, 1-2m, 2-3m, and greater than 3.0m. To avoid excessive aggregation of samples, no more than 5 trees in a size class could be chosen within a 100-meter sub-area of the sampling grid. The nearest tree to each random point that met the pre-determined size requirement was identified and marked with a permanent aluminum tag. For the size category less than 0.1m tall, field-collected [...]

Contacts

Point of Contact :
James B Grace
Originator :
James B. Grace, Larry K Allain, Rebecca Moss
Metadata Contact :
James B Grace
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Wetland and Aquatic Research Center
USGS Mission Area :
Ecosystems

Attached Files

Click on title to download individual files attached to this item.

Brazoria_NWR_Prairie_Resilience_data.csv 8.71 KB
Brazoria_NWR_Prairie_Resilience_Data.xml
Original FGDC Metadata

View
14.35 KB

Purpose

These data are from a multi-year study of the effects of fire on Chinese tallow conducted at the Brazoria National Wildlife Refuge in coastal Texas, USA (Grace et al. 2005). A 12,150 hectare tract of prairie is located at the refuge. The objective of the study was to attempt to ascertain under what circumstances of Chinese tallow tree size, fuel loads, and other conditions is it possible to manage large tracts of prairie using prescribed fire. Because prescribed burning can seldom be accomplished at this site more frequently than once every two years, both because of logistics and because of fuel bed recovery, it was determined that the measure of success would be whether trees were shorter prior to the follow up burn than they were before the first burn.

Map

Communities

  • USGS Data Release Products
  • USGS Wetland and Aquatic Research Center

Tags

Provenance

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9MOHC0C

Item Actions

View Item as ...

Save Item as ...

View Item...