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Book Long term Effects of Prescribed Fire on Nitrogen Availability in Ponderosa Pine Stands in Central Oregon

Download or read book Long term Effects of Prescribed Fire on Nitrogen Availability in Ponderosa Pine Stands in Central Oregon written by Vicente J. Monleon-Moscardo and published by . This book was released on 1993 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of prescribed burning on the rates of recent litter decomposition, nitrogen and phosphorus release from litter, soil total and inorganic nitrogen pools, and net nitrogen mineralization were determined in ponderosa pine sites that had been burned 0.3, 5 or 12 years earlier. Prescribed burning decreased litter decomposition rates significantly (p>0.1), in the sites burned 0.3 and 12 years previously, although the differences in litter decomposition rates between burned and control plots were small. Nitrogen and P release from recent litter was significantly higher in the plots burned 5 years previously, but there were no significant differences in the plots burned 0.3 or 12 years earlier. Soil inorganic N concentration significantly increased shortly after prescribed burning, but declined thereafter to reach the levels of the control plots at the end of the next growing season. Both inorganic and total soil N pools in soil were significantly lower in the plots burned 5 years previously, and there were no differences in any of the N pools measured for the sites burned 12 years earlier. Prescribed burning did not significantly affect annual net nitrogen mineralization 0.3 years after burning, but net N mineralization decreased significantly in the 5 and 12 year burned plots. The decrease in net nitrogen mineralization is probably caused by a decrease in substrate quantity 5 years after burning, and by changes in substrate quality 12 years after burning. A long-term decrease in net N mineralization in the N-poor ponderosa pine stands of Central Oregon may result in a decrease in long-term site productivity and may explain the observed pattern of long-term decrease in stand growth following prescribed burning.

Book Effect of Prescribed Burning on Soil Moisture and Germination of Southwestern Ponderosa Pine Seed on Basaltic Soils

Download or read book Effect of Prescribed Burning on Soil Moisture and Germination of Southwestern Ponderosa Pine Seed on Basaltic Soils written by Sally M. Haase and published by . This book was released on 1986 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book General Technical Report RM

Download or read book General Technical Report RM written by and published by . This book was released on 1990 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Research Note RM

Download or read book Research Note RM written by and published by . This book was released on 1985 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of a prescribed fire in an Arizona ponderosa pine forest

Download or read book Effects of a prescribed fire in an Arizona ponderosa pine forest written by Peter F. Ffolliott and published by . This book was released on 1977 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fire and the Environment

Download or read book Fire and the Environment written by and published by . This book was released on 1991 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Proceedings RMRS

Download or read book Proceedings RMRS written by and published by . This book was released on 1998 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book U S Forest Service Research Note

Download or read book U S Forest Service Research Note written by United States. Rocky Mountain Forest and Range Experiment Stations, Fort Collins, Colo and published by . This book was released on 1981 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Fire Management of Southwestern Natural Resources

Download or read book Effects of Fire Management of Southwestern Natural Resources written by and published by . This book was released on 1990 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings is a collection of papers and posters presented at the Symposium on Effects of Fire Management of Southwestern Natural Resources held in Tucson, Arizona, November 15-17, 1988. Included are papers, poster papers and a comprehensive list of references on the effects of fire on: plant succession, cultural resources, hydrology, range and wildlife resources, soils, recreation, smoke management, and monitoring techniques pertinent to prescribed fire management in the southwestern United States.

Book Guide to Understory Burning in Ponderosa Pine larch fir Forests in the Intermountain West

Download or read book Guide to Understory Burning in Ponderosa Pine larch fir Forests in the Intermountain West written by Bruce M. Kilgore and published by . This book was released on 1987 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes the objectives, prescriptions, and techniques used in prescribed burning beneath the canopy of ponderosa pine stands, and stands of ponderosa pine mixed with western larch, Douglas-fir, and grand fir. Information was derived from 12 districts in two USDA Forest Service Regions and seven National Forests in Montana and Oregon.

Book Effects of Prescribed Fire on Water soluble Nutrients and Organics and Effects of Volatiles on Nitrogen Mineralization

Download or read book Effects of Prescribed Fire on Water soluble Nutrients and Organics and Effects of Volatiles on Nitrogen Mineralization written by James R. Gosz and published by . This book was released on 1985 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: