Silviculture Treatments for Ecosystem Management in the Sayward (STEMS) PDF Download
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Author: Louise De Montigny
Publisher: University of British Columbia Press
ISBN:
Category : Science
Languages : en
Pages : 84
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Book Description
The Silviculture Treatments for Ecosystem Management in the Sayward (STEMS) project is a large-scale, multidisciplinary experiment that compares forest productivity, economics, & public perception of seven treatments replicated at three sites in the Sayward Landscape Unit in the Campbell River Forest District on Vancouver Island. This report describes the establishment of the first replication of STEMS in the Snowden Demonstration Forest located in the southern portion of the Unit. The treatments investigated include five different silvicultural systems (clear-cut, patch cut, group selection, aggregate retention, & uniform dispersed retention) which are compared against two extended rotation options with & without commercial thinning. The first replication was harvested in 2001 and results related to each treatment are presented. The results will be used to improve forest management & policies and will be especially relevant for forests with multiple use objectives.
Author: Louise De Montigny
Publisher: University of British Columbia Press
ISBN:
Category : Science
Languages : en
Pages : 84
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Book Description
The Silviculture Treatments for Ecosystem Management in the Sayward (STEMS) project is a large-scale, multidisciplinary experiment that compares forest productivity, economics, & public perception of seven treatments replicated at three sites in the Sayward Landscape Unit in the Campbell River Forest District on Vancouver Island. This report describes the establishment of the first replication of STEMS in the Snowden Demonstration Forest located in the southern portion of the Unit. The treatments investigated include five different silvicultural systems (clear-cut, patch cut, group selection, aggregate retention, & uniform dispersed retention) which are compared against two extended rotation options with & without commercial thinning. The first replication was harvested in 2001 and results related to each treatment are presented. The results will be used to improve forest management & policies and will be especially relevant for forests with multiple use objectives.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 720
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Book Description
Author: Klaus J. Puettmann
Publisher: Island Press
ISBN: 1610911237
Category : Science
Languages : en
Pages : 207
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Book Description
The discipline of silviculture is at a crossroads. Silviculturists are under increasing pressure to develop practices that sustain the full function and dynamics of forested ecosystems and maintain ecosystem diversity and resilience while still providing needed wood products. A Critique of Silviculture offers a penetrating look at the current state of the field and provides suggestions for its future development. The book includes an overview of the historical developments of silvicultural techniques and describes how these developments are best understood in their contemporary philosophical, social, and ecological contexts. It also explains how the traditional strengths of silviculture are becoming limitations as society demands a varied set of benefits from forests and as we learn more about the importance of diversity on ecosystem functions and processes. The authors go on to explain how other fields, specifically ecology and complexity science, have developed in attempts to understand the diversity of nature and the variability and heterogeneity of ecosystems. The authors suggest that ideas and approaches from these fields could offer a road map to a new philosophical and practical approach that endorses managing forests as complex adaptive systems. A Critique of Silviculture bridges a gap between silviculture and ecology that has long hindered the adoption of new ideas. It breaks the mold of disciplinary thinking by directly linking new ideas and findings in ecology and complexity science to the field of silviculture. This is a critically important book that is essential reading for anyone involved with forest ecology, forestry, silviculture, or the management of forested ecosystems.
Author:
Publisher:
ISBN:
Category : Forest management
Languages : en
Pages : 406
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Book Description
Balancing Ecosystem Values: Innovative Experiments for Sustainable Forestry is a compendium of more than 40 contributions from Asia, Europe, and North America. The theme encompasses experiments implemented at an operational scale to test ecological, social, or economic responses to silvicultural treatments designed to balance the complex set of objectives currently targeted in sustainable forest management. Several invited and plenary papers emphasize the variety of outcomes demanded by the public, as well as the essential role that these long-term studies will play in allowing natural resource managers to make better-informed, science-based decisions. A broad spectrum of silvicultural treatments and systems are covered, as are simulation runs with different types of models and discussion about design challenges for scaling up from stands to landscapes. Diverse forest ecosystems, stand structures and plant, animal, and fungal species are also considered. The conference included 2 days in the field where participants saw several types of the comprehensive field experiments firsthand. The conference concluded with a critique from state, private, and public land managers.
Author:
Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 128
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Book Description
This report describes the origin, design, establishment and measurement procedures and first results of a large long-term cooperative study comparing a number of widely different silvicultural regimes applied to young-growth Douglas-fir (Pseudotsuga menziesii) stands managed for multiple objectives. Regimes consist of (1) conventional clearcutting followed by intermediate thinning; (2) retention of reserve trees to create a two-aged stand; (3) small patch cuts dispersed within a thinned matrix, repeated at approximately 15-year intervals to create a mosaic of age classes; (4) group selection within a thinned matrix on an approximate 15-year cycle; (5) continued thinning on an extended rotation; and (6) an untreated control. Each of these regimes is on operationsize units (about 30 to 70 acres each). Output variables to be evaluated include conventional timber growth and yield statistics, harvest costs, sale layout and administration costs, aesthetic effects and public acceptance, soil disturbance, bird populations, and economic aspects. Descriptive statistics and some initial results are presented for the first replicate, established in 1997-98.
Author: Brian D'Anjou
Publisher:
ISBN:
Category : Spotted owl
Languages : en
Pages : 40
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Book Description
Author: Pacific Northwest Research Station (Portland, Or.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 82
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Book Description
Author: Ecological Society of America. Meeting
Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 612
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Book Description
Author:
Publisher:
ISBN:
Category : Coarse woody debris
Languages : en
Pages : 56
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Book Description
Author: Peter Fielder
Publisher:
ISBN:
Category : Conifers
Languages : en
Pages : 100
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Book Description
seasons (April 1-October 31) are presented for both sites. Maximum T at GS10 and HU10 was approximately 0.8 and 0.7, respectively, and minimum levels in the understorey declined to less than 0.05 at both sites on the south side of the gaps. Growth on the sites was affected by both soil moisture and vapour pressure deficit. An additive model was used to incorporate the moisture variables with T estimates to model the effect of light on growth, although replication was considered insufficient for statistical comparisons between the two sites. Growth tended to increase to a maximum at T values of approximately 0.3 and 0.8 for western hemlock (Tsuga heterophylla [Raf.] Sarg.) and western redcedar (Thuja plicata Donn.), respectively, and did not reach a maximum at approximately 0.8 above-canopy light for Douglas-fir (Psuedotsuga menziesii [Mirbel] Franco) and western white pine (Pinus monticola Dougl.). Light modelling with TASS III revealed both differences and similarities between the mod
