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Keyword: Pacific Northwest

Where’s the biomass? A new approach for quantifying biomass and carbon in the western United States

Events Posted on: October 06, 2020
In this webinar, RMRS research forester Andy Hudak will discuss the Carbon Monitoring System, which draws upon the power of computer modeling, LiDAR, field data, and aerial photography to map forest and woodland biomass.

Influence of topography and fuels on fire refugia probability under varying fire weather conditions in forests of the Pacific Northwest, USA

Publications Posted on: July 11, 2020
Fire refugia-locations that burn less severely or less frequently than surrounding areas - support late-successional and old-growth forest structure and function. This study investigates the influence of topography and fuels on the probability of forest fire refugia under varying fire weather conditions. We focused on recent large fires in Oregon and Washington, United States (n = 39 fires > 400 ha, 2004-2014).

Northwest Forest Plan—the first 10 years (1994-2003): status and trend of late-successional and old-growth forest.

Publications Posted on: June 22, 2020
We monitored the status and trend of late-successional and old-growth forest (older forest) on 24 million ac of land managed by the Forest Service, Bureau of Land Management, and National Park Service in the Northwest Forest Plan (the Plan) area between 1994 and 2003. We developed baseline maps from satellite imagery of older forest conditions at the start of the Plan.

Where’s the biomass? A new approach for quantifying biomass and carbon in the Western United States

Science Spotlights Posted on: May 08, 2020
The 2012 Forest Service Planning rule requires that National Forests incorporate into their forest management plans mitigation and adaptation strategies in response to climate change. The Carbon Monitoring System provides annual biomass maps spanning 2000-2016 that will be useful for developing carbon budgets for National Forests and identifying areas needing fuel treatments to reduce wildfire risk. The underlying foundation of this work is forest inventory and LiDAR data contributed by USFS managers and many other public and private stakeholders.

The missing fire: Quantifying human exclusion of wildfire in Pacific Northwest forests, USA

Publications Posted on: October 02, 2019
Western U.S. wildfire area burned has increased dramatically over the last half-century. How contemporary extent and severity of wildfires compare to the pre-settlement patterns to which ecosystems are adapted is debated. We compared large wildfires in Pacific Northwest forests from 1984 to 2015 to modeled historic fire regimes.

Fire enhances the complexity of forest structure in alpine treeline ecotones

Publications Posted on: October 05, 2018
Alpine treelines are expected to move upward in a warming climate, but downward in response to increases in wildfire. We studied the effects of fire on vegetation structure and composition across four alpine treeline ecotones extending from Abies lasiocarpa/Picea engelmannii forests at lower elevations, through Pinus albicaulis/Larix lyallii parkland, to alpine tundra.

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Media Gallery Posted on: May 11, 2017
Native plant community restoration is a vital tool for preserving and maintaining diverse ecosystems that support wildlife and provide ecosystem functions essential to healthy human communities. The success of restoration projects depends on using plant materials that are adapted to local environmental and climatic conditions. Seed transfer guidelines and seed zones help land managers in selecting the right seed for the right place. To learn more about this see Science Spotlight: The Right Seed At The Right Place

The Right Seed At The Right Place

Science Spotlights Posted on: May 11, 2017
Native plant community restoration is a vital tool for preserving and maintaining diverse ecosystems that support wildlife and provide ecosystem functions essential to healthy human communities. The success of restoration projects depends on using plant materials that are adapted to local environmental and climatic conditions. Seed transfer guidelines and seed zones help land managers in selecting the right seed for the right place.

Conservation of native Pacific trout diversity in Western North America

Publications Posted on: June 29, 2016
Pacific trout Oncorhynchus spp. in western North America are strongly valued in ecological, socioeconomic, and cultural views, and have been the subject of substantial research and conservation efforts. Despite this, the understanding of their evolutionary histories, overall diversity, and challenges to their conservation is incomplete.

Predicting landscape sensitivity to present and future floods in the Pacific Northwest, USA

Publications Posted on: February 24, 2016
Floods are the most frequent natural disaster, causing more loss of life and property than any other in the USA. Floods also strongly influence the structure and function of watersheds, stream channels, and aquatic ecosystems.

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