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ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.3/5 (91 download)
Download or read book Proceedings ... Annual Forest Management Conference written by and published by . This book was released on 1984 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (3 download)
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications written by and published by . This book was released on with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : California Weed Science Society
Publisher :
ISBN 13 :
Total Pages : 1024 pages
Book Rating : 4.E/5 ( download)
Download or read book Proceedings of California Weed Science Society written by California Weed Science Society and published by . This book was released on 1994 with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Publisher : Elsevier
ISBN 13 : 0444639993
Total Pages : 540 pages
Book Rating : 4.4/5 (446 download)
Download or read book Global Change and Forest Soils written by and published by Elsevier. This book was released on 2019-11-23 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global Change and Forest Soils: Cultivating Stewardship of a Finite Natural Resource, Volume 36, provides a state-of-the-science summary and synthesis of global forest soils that identifies concerns, issues and opportunities for soil adaptation and mitigation as external pressures from global changes arise. Where, how and why some soils are resilient to global change while others are at risk is explored, as are upcoming train wrecks and success stories across boreal, temperate, and tropical forests. Each chapter offers multiple sections written by leading soil scientists who comment on wildfires, climate change and forest harvesting effects, while also introducing examples of current global issues. Readers will find this book to be an integrated, up-to-date assessment on global forest soils. - Presents sections on boreal, temperate and tropical soils for a diverse audience - Serves as an important reference source for anyone interested in both a big-picture assessment of global soil issues and an in-depth examination of specific environmental topics - Provides a unique synthesis of forest soils and their collective ability to respond to global change - Offers chapters written by leading soil scientists - Prepares readers to meet the daily challenges of drafting multi-resource environmental science and policy documents
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ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.:/5 (319 download)
Download or read book Selected References Concerning the USDA Forest Service written by and published by . This book was released on 1995 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Philip M. McDonald
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (319 download)
Download or read book Repeated Manual Release in a Young Plantation written by Philip M. McDonald and published by . This book was released on 1994 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Douglas-fir seedlings on the Arcata Resource Area, Bureau of Land Management, U.S. Department of the Interior, in central coastal California, were released by chain sawing and grubbing competing vegetation around them at different frequencies (0, 2, and 3 grubbings) over a 5-year period. After 5 years, average Douglas-fir stem diameter (measured at 12 inches above mean groundline) of seedlings grubbed at ages 1,2, and 5 was 0.91 inches, and of seedlings grubbed after the first and fifth growing season was 0.95 inches. Both were significantly larger than counterparts in the control (0.57 inches). Tanoak, the most competitive species, constituted 84 percent of total plant cover in the control after 5 years, but only 25 percent on treated plots. Combined shrubs varied little between the untreated control and treated plots and averaged about 7 percent of total foliar cover. Grasses were not present in the control and only for the fifth year in treated plots. The most abundant forb, a hedge nettle, increased greatly in density in both control and treated plots. These relationships and others denoted in the paper yield valuable ecological information on species and community dynamics in both a natural and treated environment. Crew time (no overhead or travel costs) for the three grubbings was 52 hours and for the two grubbings was 44 hours.
Author : James F. Fowler
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (319 download)
Download or read book Postfire Mortality of Ponderosa Pine and Douglas-fir written by James F. Fowler and published by . This book was released on 2004 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review focused on the primary literature that described, modeled, or predicted the probability of postfire mortality in ponderosa pine (Pinus ponderosa) and Douglas-fir (Pseudotsuga menziesii). The methods and measurements that were used to predict postfire tree death tended to fall into two general categories: those focusing on measuring important aspects of fire behavior, the indirect but ultimate cause of mortality; and those focusing on tissue damage due to fire, the direct effect of fire on plant organs. Of the methods reviewed in this paper, crown scorch volume was the most effective, easiest to use, and most popular measurement in predicting postfire mortality in both conifer species. In addition to this direct measure of foliage damage, several studies showed the importance and utility of adding a measurement of stem (bole) damage. There is no clear method of choice for this, but direct assessment of cambium condition near the tree base is widely used in Douglas-fir. Only two ponderosa pine studies directly measured fine root biomass changes due to fire, but they did not use these measurements to predict postfire mortality. Indirect measures of fire behavior such as ground char classes may be the most practical choice for measuring root damage. This review did not find clear postfire survivability differences between the two species. The literature also does not show a consistent use of terminology; we propose a standard set of terms and their definitions.
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ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.3/5 (91 download)
Download or read book Research Note PSW. written by and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (319 download)
Download or read book Historical Growth Plots in the Pacific Southwest written by and published by . This book was released on 2009 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Forest Service. Pacific Southwest Region
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ISBN 13 :
Total Pages : 428 pages
Book Rating : 4.3/5 (117 download)
Download or read book Final Environmental Impact Statement, Pacific Southwest Region, Vegetation Management for Reforestation: Appendixes A through H written by United States. Forest Service. Pacific Southwest Region and published by . This book was released on 1989 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 738 pages
Book Rating : 4.:/5 (319 download)
Download or read book Bibliographies and Literature of Agriculture written by and published by . This book was released on 1990 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 446 pages
Book Rating : 4.3/5 (555 download)
Download or read book Klamath National Forest (N.F.), King-Titus Fire Recovery Project, Siskiyou County written by and published by . This book was released on 1989 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Luigi Todaro
Publisher : MDPI
ISBN 13 : 3036504362
Total Pages : 214 pages
Book Rating : 4.0/5 (365 download)
Download or read book Growth and Allocation of Woody Biomass in Forest Trees Based on Environmental Conditions written by Luigi Todaro and published by MDPI. This book was released on 2021-04-23 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest ecosystems are important because of the key role in reducing atmospheric greenhouse gas concentrations by storing a large amount of carbon in biomass and soils. The relative amount of above-ground biomass allocated among different tree tissues is a functional indicator of forests’ health reflecting the material flow, the wood quality and the plant survival strategy. The way in which plants steer their photosynthetic product across their compartments is not fixed but likely vary over time, across growth economies and among species and, lastly, is influenced by plant size and climate, Obtaining a qualitative/quantitative understanding of the influence that these factors have in both growth and biomass allocation is of fundamental importance either in understanding plant ecology and evolution and into developing environmental policies and useful forest management practices to cope with future climate change.
Author : Peter R. Robichaud
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (319 download)
Download or read book Evaluating the Effectiveness of Postfire Rehabilitation Treatments written by Peter R. Robichaud and published by . This book was released on 2000 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spending on postfire emergency watershed rehabilitation has increased during the past decade. A west-wide evaluation of USDA Forest Service burned area emergency rehabilitation (BAER) treatment effectiveness was undertaken as a joint project by USDA Forest Service Research and National Forest System staffs. This evaluation covers 470 fires and 321 BAER projects, from 1973 through 1998 in USDA Forest Service Regions 1 through 6. A literature review, interviews with key Regional and Forest BAER specialists, analysis of burned area reports, and review of Forest and District monitoring reports were used in the evaluation. The study found that spending on rehabilitation has increased to over $48 million during the past decade because the perceived threat of debris flows and floods has increased where fires are closer to the wildland-urban interface. Existing literature on treatment effectiveness is limited, thus making treatment comparisons difficult. The amount of protection provided by any treatment is small. Of the available treatments, contour-felled logs show promise as an effective hillslope treatment because they provide some immediate watershed protection, especially during the first postfire year. Seeding has a low probability of reducing the first season erosion because most of the benefits of the seeded grass occurs after the initial damaging runoff events. To reduce road failures, treatments such as properly spaced rolling dips, water bars, and culvert reliefs can move water past the road prism. Channel treatments such as straw bale check dams should be used sparingly because onsite erosion control is more effective than offsite sediment storage in channels in reducing sedimentation from burned watersheds. From this review, we recommend increased treatment effectiveness monitoring at the hillslope and sub-catchment scale, streamlined postfire data collection needs, increased training on evaluation postfire watershed conditions, and development of an easily accessible knowledge base of BAER techniques.
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ISBN 13 :
Total Pages : 428 pages
Book Rating : 4.3/5 (555 download)
Download or read book Vegetation Management for Reforestation (CA,OR,NV) written by and published by . This book was released on 1989 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 460 pages
Book Rating : 4.3/5 (555 download)
Download or read book Idaho Panhandle National Forests (N.F.), North Fork St. Joe River Project, Shoshone County written by and published by . This book was released on 1999 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
