Impacts on Soils and Residual Trees from Cut-to-length Thinning Operations in California's Redwood Forests

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ISBN 13 :
Total Pages : 57 pages
Book Rating : 4.:/5 (115 download)

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Book Synopsis Impacts on Soils and Residual Trees from Cut-to-length Thinning Operations in California's Redwood Forests by : Kyungrok Hwang

Download or read book Impacts on Soils and Residual Trees from Cut-to-length Thinning Operations in California's Redwood Forests written by Kyungrok Hwang and published by . This book was released on 2018 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: In northern California, a cut-to-length (CTL) system was used for the first time to harvest young redwood forests (Sequoia sempervirens (Lamb. ex D. Don) Endl.). However, landowners and public agencies are concerned about the potential negative impacts of CTL logging to soils and residual trees since the extent and amount of CTL impacts are unknown in these forests. This study was designed to (1) determine soil physical property using bulk density (BD) and hydraulic conductivity (HC) (2) examine the characteristics of stand damage after CTL harvesting, and (3) compare the scar size differences between tree growing patterns (individuals vs. clumps). Soil samples were collected from transects at two locations (track and center) on forwarder trails and reference points at three levels of soil depths (0-5, 10-15, and 20-25 cm), and HC data on the soil surface were measured adjacent to the BD sample point. Stand damage was assessed regardless of scar size. I found 25 to 30% increase in BD at 0-5 cm of soil depth on the track compared to reference, but HC showed the inconsistent results due to high variability, so a greater size of HC samples would be needed. Approximately, 16.2-32.2% of residual trees were damaged during operations, and I detected that most damage was located near the forwarding trails and ground level. In addition, I found the larger-sized-scars on clumped trees compared to individual trees in scar width and length. CTL thinning operations may be viable, however, future studies should be performed after few years to evaluate the feasibility of this harvesting system on longer-term tree growth.

Some Results of Cutting in the Sierra Forests of California

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ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Some Results of Cutting in the Sierra Forests of California by : Duncan Dunning

Download or read book Some Results of Cutting in the Sierra Forests of California written by Duncan Dunning and published by . This book was released on 1923 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Research Note RM

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ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Research Note RM by :

Download or read book Research Note RM written by and published by . This book was released on 1987 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Redwood Forest Handbook

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ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis The Redwood Forest Handbook by : Jack Reveal

Download or read book The Redwood Forest Handbook written by Jack Reveal and published by . This book was released on 1952 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Timber Growing and Logging Practice in the Coast Redwood Region of California

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ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Timber Growing and Logging Practice in the Coast Redwood Region of California by : Stuart Bevier Show

Download or read book Timber Growing and Logging Practice in the Coast Redwood Region of California written by Stuart Bevier Show and published by . This book was released on 1932 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ecology of Redwood and the Impact of Man's Use of the Redwood Forest as a Site for Recreational Activities

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ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Ecology of Redwood and the Impact of Man's Use of the Redwood Forest as a Site for Recreational Activities by : Joe McBride

Download or read book Ecology of Redwood and the Impact of Man's Use of the Redwood Forest as a Site for Recreational Activities written by Joe McBride and published by . This book was released on 1977 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Redwood Forest Handbook

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Publisher :
ISBN 13 :
Total Pages : 356 pages
Book Rating : 4.:/5 (42 download)

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Book Synopsis The Redwood Forest Handbook by : California. Division of Forestry

Download or read book The Redwood Forest Handbook written by California. Division of Forestry and published by . This book was released on 1948 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:

U.S. Forest Service Research Note

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ISBN 13 :
Total Pages : 360 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis U.S. Forest Service Research Note by : United States. Rocky Mountain Forest and Range Experiment Stations, Fort Collins, Colo

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:

Effects of Modified Skidding Rules on Mixed Conifer Advance Regeneration in Arizona

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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Effects of Modified Skidding Rules on Mixed Conifer Advance Regeneration in Arizona by : Gerald J. Gottfried

Download or read book Effects of Modified Skidding Rules on Mixed Conifer Advance Regeneration in Arizona written by Gerald J. Gottfried and published by . This book was released on 1987 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Impacts on Soils from Cut-to-length and Whole Tree Harvesting

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Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (775 download)

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Book Synopsis Impacts on Soils from Cut-to-length and Whole Tree Harvesting by : Sang-Kyun Han

Download or read book Impacts on Soils from Cut-to-length and Whole Tree Harvesting written by Sang-Kyun Han and published by . This book was released on 2006 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Forest Land Situation in the California Redwood Region

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ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Forest Land Situation in the California Redwood Region by : Emanuel Fritz

Download or read book Forest Land Situation in the California Redwood Region written by Emanuel Fritz and published by . This book was released on 1939 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Redwood Forest

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Publisher :
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis The Redwood Forest by : Save-the-Redwoods League

Download or read book The Redwood Forest written by Save-the-Redwoods League and published by . This book was released on 2000 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evidence is mounting that redwood forests, like many other ecosystems, cannot survive as small, isolated fragments in human-altered landscapes. Such fragments lose their diversity over time and, in the case of redwoods, may even lose the ability to grow new, giant trees. The Redwood Forest, written in support of Save-the-Redwood League's master plan, provides scientific guidance for saving the redwood forest by bringing together in a single volume the latest insights from conservation biology along with new information from data-gathering techniques such as GIS and remote sensing. It presents the most current findings on the geologic and cultural history, natural history, ecology, management, and conservation of the flora and fauna of the redwood ecosystem. Leading experts -- including Todd Dawson, Bill Libby, John Sawyer, Steve Sillett, Dale Thornburgh, Hartwell Welch, and many others -- offer a comprehensive account of the redwoods ecosystem, with specific chapters examining: the history of the redwood lineage, from the Triassic Period to the present, along with the recent history of redwoods conservation life history, architecture, genetics, environmental relations, and disturbance regimes of redwoods terrestrial flora and fauna, communities, and ecosystems aquatic ecosystems landscape-scale conservation planning management alternatives relating to forestry, restoration, and recreation. The Redwood Forest offers a case study for ecosystem-level conservation and gives conservation organizations the information, technical tools, and broad perspective they need to evaluate redwood sites and landscapes for conservation. It contains the latest information from ground-breaking research on such topics as redwood canopy communities, the role of fog in sustaining redwood forests, and the function of redwood burls. It also presents sobering lessons from current research on the effects of forestry activities on the sensitive faunas of redwood forests and streams. The key to perpetuating the redwood forest is understanding how it functions; this book represents an important step in establishing such an understanding. It presents a significant body of knowledge in a single volume, and will be a vital resource for conservation scientists, land use planners, policymakers, and anyone involved with conservation of redwoods and other forests.

Converting Coast Redwood/Douglas-fir Forests to Multiaged Management

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ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (113 download)

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Book Synopsis Converting Coast Redwood/Douglas-fir Forests to Multiaged Management by : Robert T. Muma

Download or read book Converting Coast Redwood/Douglas-fir Forests to Multiaged Management written by Robert T. Muma and published by . This book was released on 2019 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is increased interest in multiaged management as a silvicultural and restoration tool in redwood forests of California. The effect of varying residual densities and spatial arrangements on residual stand damage, tree growth and regeneration was studied in a multicohort silviculture experiment on Jackson Demonstration State Forest. Four treatments varying in residual stand density or spatial arrangement were replicated at four sites. The experiment provided 4-year periodic growth measurements of residual trees and annual measurements of redwood and tanoak sprout height increments. Residual trees were more likely to sustain bole scarring when retained at higher densities. Crown damage was more likely to be sustained by smaller trees. From 2-6 years after partial harvesting, redwood trees grew faster than Douglas-fir or tanoak following harvest. The height increment of dominant redwood stump sprouts was much greater than dominant tanoak sprouts across all treatments and the growth of both species was directly correlated to understory light. No differences were detected for any dependent variables between dispersed and aggregated retention. No differences in sprout growth were detected when retaining a residual tree on the same root system as sprouting redwood stumps when compared against sprouts growing on a root system after all redwood stems were cut. Overall, these results suggest that managers have flexibility to manage multiaged redwood stands at different densities, and that retention of low densities of large trees will provide a good balance between overstory tree growth and understory development in multiaged stands while reducing incidences of residual stand damage.

Trouble in the Forest

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Publisher : U of Minnesota Press
ISBN 13 : 1452914796
Total Pages : 381 pages
Book Rating : 4.4/5 (529 download)

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Book Synopsis Trouble in the Forest by : Richard Widick

Download or read book Trouble in the Forest written by Richard Widick and published by U of Minnesota Press. This book was released on with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wars over natural resources have been fiercely fought in the Humboldt Bay redwood region of Northern California, a situation made devastatingly urgent in recent decades of timber war that raised questions of economic sustainability and ecological preservation. In Trouble in the Forest, Richard Widick narrates the long and bloody history of this hostility and demonstrates how it exemplifies the key contemporary challenge facing the modern societies-the collision of capitalism, ecology, and social justice. An innovative blend of social history, cultural theory, and ethnography, Trouble in the Forest traces the origins of the redwood conflict to the same engines of modernity that drove the region's colonial violence against American Indians and its labor struggles during the industrial revolution. Widick describes in vivid detail the infamous fight that ensued when Maxxam Inc. started clearing ancient forests in Humboldt after acquiring the Pacific Lumber Company in 1985, but he also reaches further back and investigates the local Indian clashes and labor troubles that set the conditions of the timber wars. Seizing on public flash points of each confrontation-including the massacre of Wiyot on Indian Island in 1860, the machine-gunning of redwood strikers by police and company thugs during the great lumber strike of 1935, and the car bombing of forest defenders in 1990-Widick maps how the landscape has registered the impact of this epochal struggle, and how the timber wars embody the forces of market capitalism, free speech, and liberal government. Showing how events such as an Indian massacre and the death of a protester at the hands of a logger create the social memory and culture of timber production and environmental resistance now emblematic of Northern California's redwood region, Trouble in the Forest ultimately argues that the modern social imaginary produced a perpetual conflict over property that fueled the timber wars as it pushed toward the western frontier: first property in land, then in labor, and now in environment.

A Guide to Field Laboratories of the California Forest and Range Experiment Station

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ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis A Guide to Field Laboratories of the California Forest and Range Experiment Station by : California Forest and Range Experiment Station

Download or read book A Guide to Field Laboratories of the California Forest and Range Experiment Station written by California Forest and Range Experiment Station and published by . This book was released on 1958 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Saving the Redwoods

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ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.A/5 ( download)

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Book Synopsis Saving the Redwoods by : Madison Grant

Download or read book Saving the Redwoods written by Madison Grant and published by . This book was released on 1919 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Redwood Reforester

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ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (41 download)

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Book Synopsis The Redwood Reforester by :

Download or read book The Redwood Reforester written by and published by . This book was released on 1925 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: