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Keyword: nutrients

Evaluating the factors responsible for post-fire water quality response in forests of the western USA

Publications Posted on: September 26, 2019
Wildfires commonly increase nutrient, carbon, sediment and metal inputs to streams, yet the factors responsible for the type, magnitude and duration of water quality effects are poorly understood. Prior work by the current authors found increased nitrogen, phosphorus and cation exports were common the first 5 post-fire years from a synthesis of 159 wildfires across the western United States.

Long-term effects of prescribed underburning on litter decomposition and nutrient release in ponderosa pine stands in central Oregon

Documents and Media Posted on: October 03, 2018
The effects of low-intensity prescribed underburning on the rates of litter decomposition and N and P release in ponderosa pine (Pinus ponderosa Dougl. ex. Laws) stands were studied by a litter-bag technique for 18 months in sites burned 0.3, 5, or 12 years earlier.Document Type: Other Documents

Biochar can be a suitable replacement for Sphagnum peat in nursery production of Pinus ponderosa seedlings

Publications Posted on: May 10, 2018
We replaced a control peat medium with up to 75% biochar on a volumetric basis in three different forms (powder, BC; pyrolyzed softwood pellets, PP; composite wood-biochar pellets, WP), and under two supplies of nitrogen fertilizer (20 or 80 mg N) subsequently grew seedlings with a comparable morphology to the control.

Severe bark beetle outbreaks have minor impacts on stream nutrients

FS News Posted on: September 19, 2016
New research based on 30 years of streamwater data points to the vital role of new plant growth in absorbing nutrients after forest disturbances. Scientists found that at the Fraser Experimental Forest in Colorado, even though water and nutrient uptake ceases rapidly after beetles attack pine trees, streamwater nitrogen levels remained low in beetle-infested watersheds.

Evaluating reclamation success: the ecological consideration-proceedings of a symposium; 1990 April 23-26; Charleston, WV.

Publications Posted on: May 12, 2016
Includes 10 papers from a symposium organized to review what is know about the ecological principles that will govern the ultimate success or failure of all reclamation efforts on drastically disturbed lands. The papers cover four general areas: soil biological properties and nutrient cycling; vegetation dynamics; animal recolinization; and landscape-scale processes.

Tenderfoot Creek Experimental Forest water quality data: 1992-2009

Datasets Posted on: August 27, 2015
This data publication contains water quality data analyzed from water samples taken at 11 hydrologic flumes on the Tenderfoot Creek Experimental Forests from 1992 to 2009.

Rate of woody residue incorporation into Northern Rocky Mountain forest soils

Publications Posted on: January 05, 2012
The important properties contributed to forest soils by decayed wood in the Northern Rocky Mountains make it desirable to determine the time required to reconstitute such materials in depleted soils. The ratio of fiber production potential (growth) to total quantity of wood in a steady state ecosystem provides estimates varying from approximately 100 to 300 years, depending on habitat type, for replacement of decayed soil wood.

Risk of impaired condition of watersheds containing National Forest lands

Publications Posted on: November 30, 2010
We assessed the risk of impaired condition of the nearly 3700 5th-level watersheds in the contiguous 48 states containing the national forests and grasslands that make up the U.S. Forest Service's National Forest System (NFS). The assessment was based on readily available, relatively consistent nationwide data sets for a series of indicators representing watershed stressors and resources at risk of watershed impairment.

Fire effects on belowground sustainability: A review and synthesis

Publications Posted on: September 14, 2009
The overall effects of the fire on ecosystems are complex, ranging from the reduction or elimination of aboveground biomass to impacts on belowground physical, chemical and microbial mediated processes. Since a key component of overall ecosystem sustainability occurs belowground, recovery is tied to the soil's physical, chemical, and biological functions and processes.

An important lichen of southeastern Montana rangelands

Publications Posted on: April 27, 2006
The lichen (Parmelia chlorochroa) was most abundant in sagebrush and grassland vegetation associations, less so in the pine, and absent in riparian types. It was significantly associated with drier sites and bare ground. Lichens appear to have value in reducing erosion, as indicators of intensive grazing, and in contributing to the nutrient quality of soils.