Mulches Aid in Regenerating California and Oregon Forests PDF Download
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Author: Philip M. McDonald
Publisher:
ISBN:
Category : Mulching
Languages : en
Pages : 28
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Book Description
The use of mulches as a reforestation tool in Oregon and California began primarily in the late 1950's. Many types of mulches were tried including sheets of plastic, newspaper, and plywood; various thicknesses of bark, sawdust, sand, and straw; sprayed-on petroleum resin; and even large plastic buckets. Most proved to be ineffective, costly or both. Early trials tended to use small, short-lived materials that aided conifer seedling survival, but not growth. Compared to other weed-control techniques available at the time, mulches were rather expensive. Current trends are to apply longer-lived, somewhat larger mulches of mostly sheet materials made of reinforced paper, polyester, or polypropylene. When the various costs of mulching (material, installation, and maintenance) are totalled, the overall cost of the technique continues to be high. Recently, new mulch materials of polyester, polypropylene, or combinations of both have allowed silviculturists to consider large, durable mulches (10 by 10 feet or 3 by 3 m) for enhancement of growth (not just survival), and to control plants with stiffer stems.
Author: Philip M. McDonald
Publisher:
ISBN:
Category : Mulching
Languages : en
Pages : 28
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Book Description
The use of mulches as a reforestation tool in Oregon and California began primarily in the late 1950's. Many types of mulches were tried including sheets of plastic, newspaper, and plywood; various thicknesses of bark, sawdust, sand, and straw; sprayed-on petroleum resin; and even large plastic buckets. Most proved to be ineffective, costly or both. Early trials tended to use small, short-lived materials that aided conifer seedling survival, but not growth. Compared to other weed-control techniques available at the time, mulches were rather expensive. Current trends are to apply longer-lived, somewhat larger mulches of mostly sheet materials made of reinforced paper, polyester, or polypropylene. When the various costs of mulching (material, installation, and maintenance) are totalled, the overall cost of the technique continues to be high. Recently, new mulch materials of polyester, polypropylene, or combinations of both have allowed silviculturists to consider large, durable mulches (10 by 10 feet or 3 by 3 m) for enhancement of growth (not just survival), and to control plants with stiffer stems.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Book Description
Author: Andrew Price
Publisher: BoD – Books on Demand
ISBN: 9535101595
Category : Technology & Engineering
Languages : en
Pages : 280
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Book Description
Crop loss due to weeds has challenged agricultural managers since man began to develop the first farming systems. In the past century, however, much progress has been made to reduce weed interference in crop settings through effective yet mostly non-sustainable weed control strategies. With the commercial introduction of herbicides during the mid-1900's, advancements in chemical weed control tactics have provided efficient suppression of a broad range of weed species for most agricultural practices. Currently, with the necessity to design effective sustainable weed management systems, research has been pushing new frontiers on investigating integrated weed management options including chemical, mechanical as well as cultural practices. Author contributions to Weed Science present significant topics of research that examine a number of options that can be utilized to develop successful and sustainable weed management systems for many areas of crop production
Author: Roger M. Rowell
Publisher: CRC Press
ISBN: 9781566702355
Category : Science
Languages : en
Pages : 468
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Book Description
Sustainable development is an important concept underlying many of today's renewable resource policies. Agro-based resources, such as wood, make up a significant portion of modern renewable resources. While probably the most familiar example, wood is only one type of agromass in the vast world of photosynthetic resources. Paper and Composites from Agro-Based Resources explores the great number of options available for producing paper and composites. Using sound ecosystem management principles, the book discusses strategies for obtaining fiber from plant-based resources including agricultural crops and residues, grasses, and recycled agro-based resources, in addition to wood.
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 846
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 616
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Book Description
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 730
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Book Description
Author:
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 28
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Book Description
Author: Ralph D. Nyland
Publisher: Waveland Press
ISBN: 147863376X
Category : Technology & Engineering
Languages : en
Pages : 680
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Book Description
Silviculture: Concepts and Applications reflects a belief that all the tools of silviculture have a useful role in modern forestry. Through careful analysis and creative planning, foresters can address a wide array of commodity and nonmarket interests and opportunities while maintaining dynamic and resilient forests. A landowner’s needs, circumstances, and site conditions guide a silviculturist’s judgment and decision making in finding the best ways to integrate the biologic-ecologic, economic-financial, and managerial-administrative requirements at hand. The Third Edition of this influential text provides a foundational basis for rigorous discussion of techniques. The inclusion of numerous real-world examples and balanced coverage of past and current practices broadens the concept of silviculture and the ways that managers can use it to address both traditional and emerging interests in forests. A thorough discussion of new and proven interpretations increasingly directs the attention of foresters toward the role silviculture plays in creating, maintaining, rehabilitating, and restoring forests that can sustain an expanding variety of ecosystem services.
Author:
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ISBN:
Category : Douglas fir
Languages : en
Pages : 130
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Book Description
This annotated bibliography was compiled to provide a comprehensive list of sources on the ecological factors that affect forest regeneration. Abstracts from 494 publications are indexed by author, species, and subject, and are arranged into 4 major sections. Topics include the effects of biotic factors, abiotic factors, and stand and site history on vegetation, effects of vegetation on aerial and soil resources, effects of vegetation on stand development, vegetation management, plant succession, and response of vegetation to silvicultural activities and disturbances. The citations are predominately for coastal Douglas-fir occurring west of the Cascade Range in Oregon and Washington; however, applicable citations for associated conifers, hardwoods, shrubs, and herbs and for Alaska, California, and British Columbia are also included. Citations on forest genetics, seeds, seedling physiology, and insects are not included in the bibliography.
