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Keyword: drought

Regional-scale forest restoration effects on ecosystem resiliency to drought: A synthesis of vegetation and moisture trends on Google Earth Engine

Publications Posted on: January 04, 2021
Large-scale changes in forest structure and ecological function throughout western North America have led to increased frequency, size, and severity of wildfires. The US Forest Service is implementing state-wide forest restoration initiatives to reduce wildfire hazards and improve forest health.

Tree-ring growth and stable-carbon isotope response data to forest restoration treatments in ponderosa pine forests of the Lick Creek Demonstration-Research Forest, Bitterroot National Forest, Montana, USA

Datasets Posted on: December 30, 2020
This data publication includes the data used in "Forest restoration treatments in a ponderosa pine forest enhance physiological activity and growth under climatic stress" by Tepley et al. (2020).

Divergent forest sensitivity to repeated extreme droughts

Publications Posted on: December 11, 2020
Climate change-driven increases in drought frequency and severity could compromise forest ecosystems and the terrestrial carbon sink. While the impacts of single droughts on forests have been widely studied, understanding whether forests acclimate to or become more vulnerable to sequential droughts remains largely unknown and is crucial for predicting future forest health.

A climatic dipole drives short- and long-term patterns of postfire forest recovery in the western United States

Publications Posted on: November 09, 2020
Researchers are increasingly examining patterns and drivers of postfire forest recovery amid growing concern that climate change and intensifying fires will trigger ecosystem transformations. Diminished seed availability and postfire drought have emerged as key constraints on conifer recruitment.

Drought-conditioning of quaking aspen (Populus remuloides Michx.) seedlings during nursery production modifies seedling anatomy and physiology

Publications Posted on: October 01, 2020
In the western US, quaking aspen (Populus tremuloides Michx.) regenerates primarily by root suckers after disturbances such as low to moderate severity fires. Planting aspen seedlings grown from seed may provide a mechanism to improve restoration success and genetic diversity on severely disturbed sites.

Population dynamics of Rana sierrae at Dusy Basin: influence of non‐native predators, drought, and restoration potential

Publications Posted on: September 28, 2020
The Sierra Nevada yellow‐legged frog (Rana sierrae) was once an abundant and widely distributed amphibian in California's alpine ranges. Rana sierrae is adapted to high‐elevation, fishless habitats. Its adaptions are reflected in a unique life cycle that involves a flexible, extended juvenile phase due to the short growing season typical of its alpine habitat.

New RMRS products improve national response to drought on rangelands

Science Spotlights Posted on: August 24, 2020
The epic droughts of 2018 in the southwestern US devastated landscapes and economies alike. The Rangeland Production Monitoring System was used to help the Natural Resources Conservation Service and Farm Service Agency identify the most affected areas and seek emergency funding to facilitate re-seeding efforts. 

The interplay between climate change, forests, and disturbances

Publications Posted on: June 22, 2020
Climate change affects forests both directly and indirectly through disturbances. Disturbances are a natural and integral part of forest ecosystems, and climate change can alter these natural interactions. When disturbances exceed their natural range of variation, the change in forest structure and function may be extreme. Each disturbance affects forests differently.

Trait velocities reveal that mortality has driven widespread coordinated shifts in forest hydraulic trait composition

Publications Posted on: June 20, 2020
Understanding the driving mechanisms behind existing patterns of vegetation hydraulic traits and community trait diversity is critical for advancing predictions of the terrestrial carbon cycle because hydraulic traits affect both ecosystem and Earth system responses to changing water availability.