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Keyword: vegetation

Linking phenological indices from digital cameras in Idaho and Montana to MODIS NDVI

Publications Posted on: December 06, 2018
Digital cameras can provide a consistent view of vegetation phenology at fine spatial and temporal scales that are impractical to collect manually and are currently unobtainable by satellite and most aerial based sensors.

The Rangeland Vegetation Simulator: A decision support tool for monitoring and projecting grassland conditions

Publications Posted on: December 06, 2018
Rangeland landscapes occupy roughly 662 million acres in the coterminous U.S. (Reeves and Mitchell 2011) and their vegetation responds quickly to climate and management, with high relative growth rates and inter-annual variability. Current national decision support systems in the U.S.

Comparison of small- and large-footprint lidar characterization of tropical forest aboveground structure and biomass: A case study from Central Gabon

Publications Posted on: November 19, 2018
NASA’s Global Ecosystem Dynamic Investigation (GEDI) mission has been designed to measure forest structure using lidar waveforms to sample the earth’s vegetation while in orbit aboard the International Space Station. In this paper, we used airborne large-footprint (LF) lidar measurements to simulate GEDI observations from which we retrieved ground elevation, vegetation height, and aboveground biomass (AGB).

Biological assessment of oil and gas development on the Little Missouri National Grassland

Publications Posted on: November 15, 2018
The Little Missouri National Grassland is the largest designated National Grassland in the United States and represents one of the best examples of intact native mixed-grass prairie in the United States. The Little Missouri National Grasslands occurs entirely within the Williston Basin, which has been a leading source of conventional oil and gas production since the 1950s.

Predicting the effects of climate change on cattle production in western U.S. rangelands

Science Spotlights Posted on: September 13, 2018
Forage availability for grazing animals has always been vulnerable to the effects of variations of weather and climate from year–to–year, with some years and decades markedly drier than others.

Recreational trampling experiments: Effects of trampler weight and shoe type

Publications Posted on: August 01, 2018
A standard protocol for conducting experimental trampling studies was developed by Cole and Bayfield (1993). Two variables that were not standardized in that protocol are the type of shoe worn by tramplers and the weight of tramplers. In a study conducted in four different vegetation types, tramplers wearing lug-soled boots caused significantly more immediate vegetation cover loss than tramplers wearing running shoes.

Tree demography records and last recorded fire dates from the Pinaleño Demography Project, Arizona USA

Datasets Posted on: March 15, 2018
This data publication includes tree measurements taken from 2008-2013 across a gradient of forest types in the Pinaleño Mountains in southeastern Arizona, USA. Tree data include: species, pith date, and last recorded fire date. These data were collected as part of the USDA Forest Service, Rocky Mountain Research Station (RMRS) Growth and Demography of Pinaleño High Elevation Forests research project.

MODIS-based annual production estimates from 2000-2015 for rangelands in USFS grazing allotments in Region 5

Datasets Posted on: March 15, 2018
This data publication contains an ESRI grid dataset describing annual productivity and drought in the non-forest domain of Region 5 (California) of the United States Forest Service (USFS). Production data were generated from the Rangeland Vegetation Simulator (RVS).

Tree demography records and last recorded fire dates from the Pinaleño Demography Project, Arizona USA

Documents and Media Posted on: November 06, 2017
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Where’s the beef? Predicting the effects of climate change on cattle production in western U.S. rangelands

Publications Posted on: November 01, 2017
Cattle production capacity on western rangelands is potentially vulnerable to climate change through impacts on the amount of forage, changes in vegetation type, heat stress, and year-to-year forage variability. The researchers in this study projected climate change effects to rangelands through 2100 and compared them to a present-day baseline to estimate vulnerability of cattle operations.

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