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Keyword: watersheds

Effects of forest roads on stream sediment

Publications Posted on: July 08, 2020
This paper discusses some on-site erosion and stream sedimentation consequences of forest road construction in small watersheds in northern Idaho. Pioneering and culvert installation increase sediment fluxes in the streams, just below the road, 100 to 10,000 times the normal daily flux for short periods of time.

Fluvial processes in Puget Sound rivers and the Pacific Northwest [Chapter 3]

Publications Posted on: June 22, 2020
The variability of topography, geology, climate; vegetation, and land use in the Pacific Northwest creates considerable spatial and temporal variability of fluvial processes and reach-scale channel type. Here we identify process domains of typical Pacific Northwest watersheds and examine local physiographic and geologic controls on channel processes and response potential in the Puget Sound region.

Function of riparian vegetation in retaining sediment in watersheds

Publications Posted on: March 12, 2020
Riparian areas are special vegetation zones that are frequently used as buffer strips to mitigate sediment movement from upland forest and agricultural management areas (Neary et al. 2010). These areas are often called streamside management zones. Understanding any concept and accompanying literature is ultimately based on knowledge of the descriptive terminology used.

Rangeland watershed management

Publications Posted on: February 12, 2020
Rangeland watershed management deals with the problem of how to use rangelands, not in terms of forage and livestock production alone, but on the basis, that forage production and water yield are interdependent and must therefore be considered together.

Surface runoff and erosion from pine grasslands of the Colorado Front Range

Publications Posted on: February 12, 2020
In the Colorado Front Range, intensity of land use must be gaged with special care to maintain acceptable watershed conditions. Sparse cover, unstable soils, and intense summer rains compound the difficulties characterizing multiple-use management. Water from the Front Range is acutely needed in the adjacent Great Plains, but its quality and regularity of flow have long since been impaired by heavy grazing and unrestricted timber cutting.

Managing vegetation to increase flow in the Colorado River Basin

Publications Posted on: July 31, 2019
Water yield from forest and rangelands can be augmented by managing vegetation and snow to reduce evapotranspiration. Some arbitrary goals to increase water yield were chosen to illustrate the potential for increasing water yield, and treatments were hypothesized to get these increases.

eDNAtlas Data mapper

Lab Notes Posted on: September 06, 2018
Analyzing eDNA samples in a lab allows researchers to reliably determine where target species are found and overcomes previous limitations of traditional sampling techniques. The eDNAtlas website and dynamic database tools allow the public, managers, and researchers to access results from samples of environmental DNA (eDNA).  

Ecosystems and watersheds

Pages Posted on: February 06, 2017
Ecosystems are spatially explicit, relatively homogeneous units of the Earth that include all interacting organisms and elements of the abiotic environment within their boundaries. They should be described in terms of their composition, structure, function, and connectivity. These publications and tools include valuable information for terrestrial ecosystems, aquatic ecosystems, and watersheds.

Wildland fire in ecosystems: effects of fire on soils and water

Publications Posted on: May 12, 2016
This state-of-knowledge review about the effects of fire on soils and water can assist land and fire managers with information on the physical, chemical, and biological effects of fire needed to successfully conduct ecosystem management, and effectively inform others about the role and impacts of wildland fire.

National forest contributions to streamflow: United States

Pages Posted on: February 15, 2016
Here we provide a map and text file of regional streamflow contributions from national forest lands in the contiguous United States.