Understory

Learn more about the Sinkin Experimental Forest.

Learn more about the Udell Experimental Forest.

Learn more about the Vinton Furnace Experimental Forest.

Inactive Experimental Forest.

The U.S. Department of Agriculture (USDA), Forest Service is implementing silviculture and prescribed fire treatments to restore forests to their historical structures and compositions in the northern Blue Mountains of northeastern Oregon and southeastern Washington in the Wallowa-Whitman and Umatilla National Forests. This project uses noninvasive methods (trail cameras and audio recording units) and traditional wildlife sampling techniques (radio telemetry and searching for and checking nests) to develop the tools and understanding needed to monitor wildlife communities and predict their res...

This manual documents data collection procedures, codes, standards, and definitions used by the Pacific Northwest Research Station, Forest Inventory and Analysis (PNW-FIA) program in the 2025 annual forest inventory of California, Oregon, and Washington.

Agroforestry – the intentional integration of agriculture and forestry – has tremendous potential to increase food production, wildfire mitigation, and recreation opportunities on America’s working lands. In Hawaiʻi, 88% of food is imported and nearly 40% of agricultural lands are unmanaged fallow, primarily covered in invasive species. Returning productivity to these lands is an important strategy for increasing rural food security and reducing wildfire risk. The Forest Service, in collaboration with many dedicated partners, is at the forefront of developing solutions to increase the extent, ...

Discussions with resource managers, policy makers, and others prompted our team to investigate the effectiveness of novel semiochemical repellents to protect spruce trees from mortality attributed to spruce beetle in Alaska.

This is achronological bibliographyof work relevant to Spatial Stream Network (SSN) model development and applications. Please see theSpatial Stream Networkswebsite for full details on using these models, the latest software versions, tutorials, and example datasets. If you are part of a group that has published a new study using the Spatial Stream Network models and would like to have it added to this bibliography, pleasecontact usregarding the possibility.

Healthy headwater streams are critical to protecting downstream water quality for many natural ecosystems and societal water uses. Attention to the critical role that headwater watersheds play in providing clean surface water for ecosystems and human consumption has been magnified in recent years as threats to their sustainability continue to intensify through land use change, urbanization, timber harvesting, and climate change induced extreme events and wildfires. Many of the headwater catchments in the United States and across the world are forested, with forests providing several functions ...