Silviculture Practices for Riparian Forests in the Oregon Coast Range PDF Download
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Author:
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Category : Forest management
Languages : en
Pages : 40
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Book Description
This publication is aimed at watershed councils, government agencies, and specialists (foresters, wildlife and fisheries biologists) interested in riparian area silviculture or watershed restoration. It contains information on the ecology of riparian forests and a checklist of recommended practices and common mistakes made in restoring conifers to hardwood-dominated riparian forests. Our recommendations are based on 1) an evaluation of 34 riparian restoration projects spanning the Coast Range of Oregon, 2) three case studies of riparian restoration projects, and 3) ongoing research projects aimed at learning how to establish or release conifers in riparian forests. We found that project managers were choosing appropriate conifer species and stock types for planting, but the survival and growth of conifers in the understory were poor. Managers were underestimating the competitive power of shrub and hardwood communities. In some cases, conflicting objectives and lack of priority setting led to the failure of expensive projects. We hope this publication will assist managers in efforts to restore healthy riparian forests and dwindling fish stocks.
Author:
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 40
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Book Description
This publication is aimed at watershed councils, government agencies, and specialists (foresters, wildlife and fisheries biologists) interested in riparian area silviculture or watershed restoration. It contains information on the ecology of riparian forests and a checklist of recommended practices and common mistakes made in restoring conifers to hardwood-dominated riparian forests. Our recommendations are based on 1) an evaluation of 34 riparian restoration projects spanning the Coast Range of Oregon, 2) three case studies of riparian restoration projects, and 3) ongoing research projects aimed at learning how to establish or release conifers in riparian forests. We found that project managers were choosing appropriate conifer species and stock types for planting, but the survival and growth of conifers in the understory were poor. Managers were underestimating the competitive power of shrub and hardwood communities. In some cases, conflicting objectives and lack of priority setting led to the failure of expensive projects. We hope this publication will assist managers in efforts to restore healthy riparian forests and dwindling fish stocks.
Author: Bill Emmingham
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
Author: Stephen D. Hobbs
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ISBN:
Category : Nature
Languages : en
Pages : 336
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Book Description
This major volume presents a wealth of fundamental and applied research on managing Coast Range forest and stream ecosystems. Written primarily for managers and resource specialists, the book will also appeal to policymakers, resource scientists, forest landowners, the conservation community, and students interested in forestry, fisheries, and wildlife sciences.
Author:
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Category : Forest influences
Languages : en
Pages : 108
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Book Description
Author: Ruth Langridge
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ISBN:
Category : Forest management
Languages : en
Pages : 224
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Book Description
The forests of the Oregon Coast Range have been both the principal natural resource, and for many years, the primary economic base of the region. In the past thirty years, changing social and economic factors have created new visions for these forests, leading to conflict over the appropriate management of both public and private forest lands. Initially the conflict played out in escalating disputes over the management of public lands. Most recently, the recognition that the boundaries of ecosystem interactions, water quality, wildlife habitat, and even public safety do not fit into a public/private classification, has led to increased conflict over the management of private forest lands. This study examines the political patterns and dynamics of the Oregon Coast Range region as a forum for exploring how the institutional realities of political influence have shaped forest policy formation for private lands. Key political actors were influential in formulating and promoting the 1971 Oregon Forest Practices Act and Rules, the primary regulatory policy for private forest lands, and they were active participants in the evolution of three subsequent policy areas: the composition of the Oregon Board of Forestry, the rules for riparian areas, and the regulation of logging on steep slopes and unstable soils. Through an analysis of patterns of influence and procedure; resources, representation, and access; and regulatory outcomes with respect to the protection of public goods such as water and wildlife, the study focuses both on institutional capacity to respond to change and issues of process in regional policymaking. Results indicate that historically, the forest products industry significantly influenced early policy formation for private forest lands, and industry continues to maintain a proactive role today. Environmental groups emerged as a force in the 1980s, but focused primarily on public land policy. However, their successful use of the media to raise public awareness served to gradually connect public land issues to private policy. Other agencies played a role in policy formation but only when representatives of these groups chose to become involved (or were put under pressure through litigation by environmental groups). The scientific community contributed important information, but their work was affected by the political climate and by the maneuvering of interest groups. Since the 1980s, the policymaking process has included a larger and more diverse group of political interests, but despite a shift to a more open and inclusive process of public consultation, the Oregon Department of Forestry (the key regulatory agency for private forest lands) continues to interact more often with industry representatives in crafting policy, and when other stakeholders are not present, industry goals dominate agency decisions. Forty percent of the Oregon Department of Forestry's Forest Practices Division budget, as mandated by 1973 state legislation, comes from the timber harvest tax. Theory proposes that this budget dependency could influence the choice of policy and management options that prioritize continued and increased timber harvest over the protection of public goods such as water and wildlife. Regulations and rules protecting public resources have increased since the inception of the 1971 Act, but have been criticized as still minimal in addressing the protection of the forest ecosystem as a whole and the cumulative effects of harvest practices.
Author: Nathan Jeremy Poage
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 268
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Book Description
Riparian forests in the central Oregon Coast Range vary along a coniferous-deciduous compositional continuum. Variations in structure and composition affect water quality, fish and wildlife, biodiversity, timber, and aesthetics. A retrospective approach was taken in this study in order to understand and compare the structure, pattern, and history of an unmanaged, mature, deciduous-dominated riparian forest and an unmanaged, mature, coniferous-dominated riparian forest in the central Oregon Coast Range. Information on forest structure and pattern was acquired by mapping locations of all trees and snags (DBH 5cm) within a 2.0 ha and a 2.25 ha reference stand. The history of each stand was reconstructed through analyses of stand structure and composition, tree ages, spatial patterns of trees and snags, as well as detailed field observations. The structure and composition of the two forests is very different. Non-random patterns of trees and snags were observed at multiple scales. Although it is not possible to infer directly the process(es) responsible for observed patterns, point-pattern analysis is a useful tool to detect and describe intra- and interspecific patterns. Neither forest resulted from a single, stand-replacing fire. Instead, both sites were at least partially burned about 145 years ago, possibly in the same fire(s) which spread across an estimated 500,000 acres between the Siuslaw and Siletz Rivers in the mid-1800's (Morris 1934). There is good evidence to suggest that a second fire occurred at the coniferous-dominated site. One or two other fires may have occurred at the deciduous-dominated site. Evidence of wind, herbivory, flooding, pathogens, mass movement events, and non-stand replacing fire was observed at one or both of the sites. Seed source availability as affected by disturbance history may have played a role in forest development at both sites. The seed source availability of red alder relative to Douglas-fir may have increased with successive disturbance events at the deciduous-dominated, riparian forest. A local source of western hemlock seed may have been a key factor in the development of the coniferous-dominated, riparian forest.
Author:
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Category : Fishery management
Languages : en
Pages : 136
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Book Description
Author: Badege Bishaw
Publisher:
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Category : Buffer zones (Ecosystem management)
Languages : en
Pages : 32
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Book Description
Riparian areas in the Pacific Northwest have traditionally been a source of natural resources, such as timber and grazing, and have been used as transportation corridors and homestead sites. A primary impact of use has been the removal of riparian trees, the crowns and roots of which provide shade and stream bank protection. Increases in water temperature can be lethal to salmonid fish, and decreasing salmon populations over the past few decades have resulted in an urgent need for improving the management of watersheds, fish habitat, and water quality. Leaving stream-side buffers is now required by state forest practices regulations on forest lands, but no regulations are in place on agricultural lands, where riparian trees have frequently been removed. In 1995, the Beaver Creek Riparian Buffer Project was established to develop better information about how to establish riparian buffers on coastal pastureland near Newport, Oregon. No riparian trees were present when the trial was begun. A replicated tree filter belt trial was established along the south bank of the creek to compare unplanted pasture (controls) with commercially valued red alder (Alnus rubra) planted at 6-ft spacing in belts 1 row, 3 rows, and 6 rows wide. Tree survival and height and diameter growth were compared, as well as the amount of shade produced by the three treatments and control. We used a LI-COR LAI-2000 Plant Canopy Analyzer to quantify shade. We found that intensive site preparation, continued vegetation management, and both fencing and tubing of tree seedlings were necessary to gain survival and protect seedlings from small rodents, beaver, and cattle. Fencing out cattle provided stream bank protection within 1 yr. Significant shading of the stream occurred 2-6 yr after planting, as trees grew tall enough to intercept a significant amount of light. Single row plantings that take a minimal amount of pasture offer significant shading only after 4-7 yr. A wider 6-row filter belt occupies a greater amount of pasture, but provides stream shading sooner than the other treatments.
Author:
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ISBN:
Category : Forests and forestry
Languages : en
Pages : 870
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Author:
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ISBN:
Category : Communication in forestry
Languages : en
Pages : 216
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Book Description
