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.
Download or read book General Technical Report PNW GTR written by and published by . This book was released on 1999 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principal Short term Findings of the National Fire and Fire Surrogate Study written by James D. McIver and published by . This book was released on 2012 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report SRS written by and published by . This book was released on 1999 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Effects on Soils and Restoration Strategies written by A Cerda and published by CRC Press. This book was released on 2009-01-05 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been published a decade after Fires Effects on Ecosystems by DeBano, Neary, and Folliott (1998), and builds on their foundation to update knowledge on natural post-fire processes and describe the use and effectiveness of various restoration strategies that may be applied when human intervention is warranted. The chapters in this book,
Download or read book CWE written by and published by . This book was released on 1998 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings RMRS written by and published by . This book was released on 2000 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fire Fuel Treatments and Ecological Restoration written by and published by . This book was released on 2003 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mapping Wildfire Hazards and Risks written by R Neil Sampson and published by CRC Press. This book was released on 2000-10-10 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Develop accurate computer models to determine wildfire risks and controlled-burn benefits! Although scientists now recognize that fire is essential to many ecosystems, the ecological and political issues of managing wildfire continue to be vexing. Mapping Wildfire Hazards and Risks offers multiple perspectives on using a Geographic Information System (GIS) for more effective wildfire management. This innovative technology is the ideal tool to organize and display all the information available, so authorities can make informed judgments based on all the facts. Because the authors are not merely theorizing but discussing the GIS they are actually building and using, Mapping Wildfire Hazards and Risks offers practical ideas and perspectives, including: specific information on the modeling approach and kinds of data utilized valuable discussions of the social and environmental factors included in the model techniques for predicting the effects of wildfire on neighborhoods, soil erosion, sedimentation, and air quality predictions of long-term ecosystem recovery given wildfires of different sizes and intensities maps, charts, tables, and formulas to make the process of building a GIS understandable and accessible Mapping Wildfire Hazards and Risks is a compilation of the ideas of federal and state agencies, universities, and non-governmental organizations on how to rank and prioritize forested watershed areas that are in need of prescribed fire. This book provides the essential information for deciding how to set priorities for wildfire management that might reduce risks or lower future damages.
Download or read book Effects of Low intensity Prescribed Fire on Fine Roots of Red Pine written by Joseph D. Zeleznik and published by . This book was released on 2001 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Potential of U S Forest Soils to Sequester Carbon and Mitigate the Greenhouse Effect written by John M. Kimble and published by CRC Press. This book was released on 2002-09-25 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much attention has been given to above ground biomass and its potential as a carbon sink, but in a mature forest ecosystem 40 to 60 percent of the stored carbon is below ground. As increasing numbers of forests are managed in a wide diversity of climates and soils, the importance of forest soils as a potential carbon sink grows. The Potenti
Download or read book Foliar Nitrogen Content and Tree Growth After Prescribed Fire in Ponderosa Pine Classic Reprint written by Johanna D. Landsberg and published by Forgotten Books. This book was released on 2018-09-09 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Foliar Nitrogen Content and Tree Growth After Prescribed Fire in Ponderosa Pine Foliar nitrogen (n) concentration was not affected by the prescribed fires; however, total foliar N content was reduced immediately after burning, and it remained depressed four growing seasons later after the burned areas had recovered from crown scorch. Foliar N content was significantly correlated with the observed reductions in periodic annual increments. Prescribed fire needs additional evaluation for a longer period and in additional ponderosa pine communities to determine long-term effects. Keywords: Prescribed burning, fire effects, foliar analysis, increment (height), increment (basal area), increment (volume), ponderosa pine, Pinus ponderosa. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The Bitterroot Ecosystem Management Research Project written by and published by . This book was released on 2000 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Paper PNW written by and published by . This book was released on 1978 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dry Forests of the Northeastern Cascades Fire and Fire Surrogate Project Site Mission Creek Okanogan Wenatchee National Forest written by and published by . This book was released on 2009 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fire and Fire Surrogate (FFS) project is a large long-term metastudy established to assess the effectiveness and ecological impacts of burning and fire "surrogates" such as cuttings and mechanical fuel treatments that are used instead of fire, or in combination with fire, to restore dry forests. One of the 13 national FFS sites is the Northeastern Cascades site at Mission Creek on the Okanogan-Wenatchee National Forest. The study area includes 12 forested stands that encompass a representative range of dry forest conditions in the northeastern Cascade Range. We describe site histories and environmental settings, experimental design, field methods, and quantify the pretreatment composition and structure of vegetation, fuels, soils and soil biota, entomology and pathology, birds, and small mammals that occurred during the 2000 and 2001 field seasons. We also describe the implementation of thinning treatments completed during 2003 and spring burning treatments done during 2004 and 2006.
Download or read book Proceedings of the Biennial Southern Silvicultural Research Conference written by and published by . This book was released on 2003 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
