Establishing Reference Conditions for Southwestern Ponderosa Pine Forests PDF Download
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Author: Peter Friederici
Publisher:
ISBN:
Category : Ponderosa pine
Languages : en
Pages : 16
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Book Description
Restoration treatments that include prescribed burning, often preceded by thinning to reduce fuel loads, have the potential to improve the ecological health of these forests. In order to wisely set the goals that underlie these treatments, it is useful for us to know as much as possible about past forest conditions, especially the reference conditions that existed before forest structure and function were altered by Euro-American settlers. They formed the evolutionary environment of southwestern ponderosa pine trees a fairly stable environment, in other words, in which this tree species and many other plants and animals evolved and adapted. Restoring conditions similar to those of the evolutionary environment is not a matter of trying to return to the past; rather, it is only a way to assure the long-term health of these forests into the future.
Author: Peter Friederici
Publisher:
ISBN:
Category : Ponderosa pine
Languages : en
Pages : 16
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Book Description
Restoration treatments that include prescribed burning, often preceded by thinning to reduce fuel loads, have the potential to improve the ecological health of these forests. In order to wisely set the goals that underlie these treatments, it is useful for us to know as much as possible about past forest conditions, especially the reference conditions that existed before forest structure and function were altered by Euro-American settlers. They formed the evolutionary environment of southwestern ponderosa pine trees a fairly stable environment, in other words, in which this tree species and many other plants and animals evolved and adapted. Restoring conditions similar to those of the evolutionary environment is not a matter of trying to return to the past; rather, it is only a way to assure the long-term health of these forests into the future.
Author:
Publisher:
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Category : Forests and forestry
Languages : en
Pages : 308
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Author:
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Category : Diffusion of innovations
Languages : en
Pages : 268
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Author:
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Category : Forest management
Languages : en
Pages : 202
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Author:
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Category : Forest ecology
Languages : en
Pages : 160
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Author:
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Category : Ecosystem management
Languages : en
Pages : 96
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Book Description
We present the history of land use and historic vegetation conditions on the Sacramento Ranger District of the Lincoln National Forest within the framework of an ecosystem needs assessment. We reconstruct forest vegetation conditions and ecosystem processes for the period immediately before Anglo-American settlement using General Land Office survey records, historic studies and accounts, and reconstructive studies such as dendrochronological histories of fire and insect outbreak and studies of old growth. Intensive grazing, clearcut logging, fire suppression, and agriculture in riparian areas have radically altered forest structure and processes since the 1880s, when intensive settlement began in the Sacramento Mountains. Present forests are younger and more dense than historic ones, and in areas that were previously dominated by ponderosa pine, dominance has shifted to Douglas-fir and white fir in the absence of frequent surface fire. Landscapes are more homogeneous and contiguous than historic ones, facilitating large-scale, intense disturbances such as insect outbreaks and crown fires.
Author: Cynthia Louise Miner
Publisher: DIANE Publishing
ISBN: 1437913571
Category : Technology & Engineering
Languages : en
Pages : 268
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Book Description
Compiles papers presented by extensionists, natural resource specialists, tech. transfer specialists, and others at a conf. that examined tech. transfer theories, methods, and case studies. Topics included: adult educ., extension, diffusion of innovations, social marketing, tech. transfer, etc. Descriptions of methods and case studies included combined digital media, engagement of users and commun. specialists in research, integrated forestry applications, Internet-based systems, science writing, training, video conf., Web-based ency., etc. Innovations transferred were best mgmt. practices for water quality, reforestation practices, land mgmt. system, portable timber bridges, reduced impact logging, silvicultural practices, urban forestry, etc. Illustrations.
Author:
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Category : Cumulative effects assessment (Environmental assessment)
Languages : en
Pages : 306
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Book Description
Author:
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ISBN:
Category : Wilderness areas
Languages : en
Pages : 400
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Author:
Publisher:
ISBN:
Category : Wilderness areas
Languages : en
Pages : 398
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Book Description
