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  3. Height, live canopy volume and annual ring widths of cottonwood trees along the Yampa and Green rivers in Dinosaur National Monument and Canyonlands National Park, Colorado and Utah

Height, live canopy volume and annual ring widths of cottonwood trees along the Yampa and Green rivers in Dinosaur National Monument and Canyonlands National Park, Colorado and Utah

Dates

Publication Date
Start Date
1756-12-31
End Date
2019-06-30

Citation

Thaxton, R.D., and Friedman, J.M., 2024, Height, live canopy volume and annual ring widths of cottonwood trees along the Yampa and Green rivers in Dinosaur National Monument and Canyonlands National Park, Colorado and Utah: U.S. Geological Survey data release, https://doi.org/10.5066/P136LUQB.

Summary

We measured the percent live canopy and height of randomly-selected cottonwood trees at three sites: Deerlodge Park on the Yampa River (DLP), Island Park on the upper Green (ILP), and Canyonlands National Park on the lower Green (CAN). From these same trees we took increment cores to understand differences in tree growth in each forest over time. This dataset includes four tabular digital files. The file "cottonwood_characteristics_dlp_ilp_can.csv" includes data on location, age, height, live canopy cover, and fire history. The files "dlp.txt", "ilp.txt", and "can.txt" contain annual tree ring width for trees at DLP, ILP and CAN.

Contacts

Point of Contact :
Jonathan M Friedman, U. S. Geological Survey, Fort Collins Science Center
Originator :
Richard D Thaxton, Jonathan M Friedman
Publisher :
U.S. Geological Survey
Metadata Contact :
FORT Data Management
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Fort Collins Science Center
USGS Mission Area :
Ecosystems

Attached Files

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GreenCottonwoods.xml
Original FGDC Metadata
View 		29.33 KB application/fgdc+xml
cottonwood_characteristics_dlp_ilp_can.csv 12.18 KB text/csv
can.txt 54.88 KB text/plain
dlp.txt 68.17 KB text/plain
ilp.txt 91.66 KB text/plain

Purpose

Hydrologic stress is increasing in Fremont cottonwood (Populus fremontii) forests across the southwestern United States because of increased streamflow diversion coupled with climatic- and drought-induced flow reductions. The spatial variability of this stress is large yet poorly understood. Along the Yampa and Green Rivers in Colorado and Utah vapor pressure deficit and flow diversions increase downstream. We collected the data presented here to investigate effects of this gradient on cottonwood forests. This data was related to local water availability, streamflow, and climatic data as described in Thaxton et al., (2024, cross-referenced below) to understand how riparian forests along the Yampa and Green River are being affected by drought, climate and flow diversion.

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  • Fort Collins Science Center (FORT)
  • USGS Data Release Products

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P136LUQB

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