Cooperative Alaska Forest Inventory

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Cooperative Alaska Forest Inventory

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Author : Thomas Malone
language : en
Publisher:
Release Date : 2009

Cooperative Alaska Forest Inventory written by Thomas Malone and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Forest surveys categories.

The Cooperative Alaska Forest Inventory (CAFI) is a comprehensive database of boreal forest conditions and dynamics in Alaska. The CAFI consists of fieldgathered information from numerous permanent sample plots distributed across interior and south-central Alaska including the Kenai Peninsula. The CAFI currently has 570 permanent sample plots on 190 sites representing a wide variety of growing conditions. New plots are being added to the inventory annually. To date, over 60 percent of the permanent sample plots have been remeasured and approximately 20 percent have been remeasured three times. Repeated periodic inventories on CAFI permanent sample plots provide valuable long-term information for modeling of forest dynamics such as growth and yield. Periodic remeasurements can also be used to test and monitor large-scale environmental and climate change. This guide documents sampling and estimation procedures of CAFI v.1.0, and provides details of the database, including attribute description and summary statistics. To help researchers and land managers successfully initiate or expand a permanent sample site program in Alaska, this guide offers a comprehensive tutorial to establish, maintain, and process permanent sample plots in Alaska's boreal forests.

Cooperative Alaska Forest Inventory

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Author : Forest Service U.S. Department of Agriculture, Forest Service
language : en
Publisher: CreateSpace
Release Date : 2015-02-14

Cooperative Alaska Forest Inventory written by Forest Service U.S. Department of Agriculture, Forest Service and has been published by CreateSpace this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-02-14 with categories.

The Cooperative Alaska Forest Inventory (CAFI) is a comprehensive database of boreal forest conditions and dynamics in Alaska. The CAFI consists of field- gathered information from numerous permanent sample plots distributed across interior and south-central Alaska including the Kenai Peninsula. The CAFI currently has 570 permanent sample plots on 190 sites representing a wide variety of growing conditions. New plots are being added to the inventory annually. To date, over 60 percent of the permanent sample plots have been remeasured and approximately 20 percent have been remeasured three times. Repeated periodic inventories on CAFI permanent sample plots provide valuable long-term information for modeling of forest dynamics such as growth and yield. Periodic remeasurements can also be used to test and monitor large-scale environmental and climate change.

A Path Toward Improved Management Of The Northern Forests Of Alaska

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Author : Thomas Malone
language : en
Publisher:
Release Date : 2011

A Path Toward Improved Management Of The Northern Forests Of Alaska written by Thomas Malone and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Forests and forestry categories.

This thesis provides three essential forest management tools that resource managers and researchers can use to improve management the northern forests of Alaska. The Cooperative Alaska Forest Inventory (CAFI) is a comprehensive database of northern forest conditions and dynamics. The basis for the CAH database is a system of permanent sample plots located throughout interior and south-central Alaska. This information can be used to develop forest growth models and track long-term forest changes. The bark thickness model was developed because there was no published white spruce bark thickness model for Alaska. The data used to develop this and volume models were taken from stands located throughout interior and south-central Alaska. Analysis shows that this Alaska statewide bark thickness model accuracy estimates white spruce bark thickness when compared to other bark thickness models. Cubic-foot volume models were developed to estimate total stem and merchantable volume of white spruce in Alaska. These multiple-entry (diameter and height) models estimate volume both outside and inside bark. Analysis shows that these volume models were more accurate for Alaska when compared to published and unpublished white spruce models. These models can be used to estimate individual stem volume, volume per unit area, and to develop biomass models.

Forest Survey Handbook

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Author : Institute of Northern Forestry (U.S.)
language : en
Publisher:
Release Date : 1968

Forest Survey Handbook written by Institute of Northern Forestry (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Forest management categories.

Forest Inventory In The Alaska Division Of Lands

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Author : Alaska. Division of Lands
language : en
Publisher:
Release Date : 1963

Forest Inventory In The Alaska Division Of Lands written by Alaska. Division of Lands and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with categories.

Forest Science Research And Scientific Communities In Alaska

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Author : Max G. Geier
language : en
Publisher:
Release Date : 1998

Forest Science Research And Scientific Communities In Alaska written by Max G. Geier and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Forests and forestry categories.

Diversity In The Boreal Forest Of Alaska

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Author : Brian David Young
language : en
Publisher:
Release Date : 2012

Diversity In The Boreal Forest Of Alaska written by Brian David Young and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Forest biodiversity categories.

Within the forest management community, diversity is often considered as simply a list of species present at a location. In this study, diversity refers to species richness and evenness and takes into account vegetation structure (i.e. size, density, and complexity) that characterize a given forest ecosystem and can typically be measured using existing forest inventories. Within interior Alaska the largest forest inventories are the Cooperative Alaska Forest Inventory and the Wainwright Forest Inventory. The limited distribution of these inventories constrains the predictions that can be made. In this thesis, I examine forest diversity in three distinct frameworks; Recruitment, Patterns, and Production. In Chapter 1, I explore forest management decisions that may shape forest diversity and its role and impacts in the boreal forest. In Chapter 2, I evaluate and map the relationships between recruitment and species and tree size diversity using a geospatial approach. My results show a consistent positive relationship between recruitment and species diversity and a general negative relationship between recruitment and tree size diversity, indicating a tradeoff between species diversity and tree size diversity in their effects on recruitment. In Chapter 3, I modeled and mapped current and possible future forest diversity patterns within the boreal forest of Alaska using machine learning. The results indicate that the geographic patterns of the two diversity measures differ greatly for both current conditions and future scenarios and that these are more strongly influenced by human impacts than by ecological factors. In Chapter 4, I developed a method for mapping and predicting forest biomass for the boreal forest of interior Alaska using three different machine-learning techniques. I developed first time high resolution prediction maps at a 1 km2 pixel size for aboveground woody biomass. My results indicate that the geographic patterns of biomass are strongly influenced by the tree size class diversity of a given stand. Finally, in Chapter 5, I argue that the methods and results developed for this dissertation can aid in our understanding of forest ecology and forest management decisions within the boreal region.

Southeast Alaska Forests

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Author : Sally J. Campbell
language : en
Publisher:
Release Date : 2004

Southeast Alaska Forests written by Sally J. Campbell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Forest surveys categories.

This publication presents highlights of a recent southeast Alaska inventory and analysis conducted by the Pacific Northwest Research Station Forest Inventory and Analysis Program (USDA Forest Service). Southeast Alaska has about 22.9 million acres, of which two-thirds are vegetated. Almost 11 million acres are forest land and about 4 million acres have nonforest vegetation (herbs and shrubs). Species diversity is greatest in western hemlockAlaska cedar closed-canopy forests, in mixed-conifer open and woodland forests, and in open tall alder-willow shrub type. Of the forest land, 4.1 million acres are classified as timberland (unreserved productive forest land). About 4.4 million acres of forest land are reserved from harvest; the majority of this reserved land (85 percent) is on the Tongass National Forest (USDA Forest Service). The volume of timber on timberland was estimated at 21,040 million cubic feet; the majority of volume88 percentis on the Tongass National Forest. Seventy-four percent of timberland acres and 84 percent of the growing-stock volume is in sawtimber stands older than 150 years, with western hemlock or western hemlockSitka spruce mix predominating. Most timberland in southeast Alaska is of relatively low productivity, producing less than 85 cubic feet per acre per year. For most timberland acres, average annual growth exceeds average annual mortality and harvest.

Forest Health Conditions In Alaska 2016 A Forest Health Protection Report

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Author : Garrel Dubois
language : en
Publisher: Government Printing Office
Release Date : 2017-04-21

Forest Health Conditions In Alaska 2016 A Forest Health Protection Report written by Garrel Dubois and has been published by Government Printing Office this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-21 with Nature categories.

This report summarizes monitoring data collected annually by our Forest Health Protection team and some of our key partners. It is intended to provide technical assistance and information to stakeholders on the forest conditions of Alaska. The report also helps to fulfill a congressional mandate (The Cooperative Forestry Assistance Act of 1978, as amended) that requires survey, monitoring, and annual reporting of the health of the forests. This report also provides information used in the annual Forest Insect and Disease Conditions in the United States report. Forestry technicians, conservation specialists, scientists, arborists, tree wardens, natural resource planners, and others involved in forest and wildlife protection would be interested in this report. Students pursuing coursework in natural resources management and forestry may also be interested in this primary source document.

South Central Alaska Forests

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Author : Sally J. Campbell
language : en
Publisher:
Release Date : 2005

South Central Alaska Forests written by Sally J. Campbell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Forest surveys categories.

This publication presents highlights of a recent south-central Alaska inventory conducted by the Pacific Northwest Research Station Forest Inventory and Analysis Program (USDA Forest Service). South-central Alaska has about 18.5 million acres, of which one-fifth (4 million acres) is forested. Species diversity is greatest in closed and open Sitka spruce forests, spruce woodlands, closed tall alder shrub type, and low shrub willow type. Of the forest land, 1.9 million acres are classified as timberland (unreserved productive forest land). About 1.3 million acres of forest land are reserved from harvest; these reserved forest acres are primarily on the Kenai National Wildlife Refuge, national parks, and the Chugach National Forest. The volume of timber on timberland was estimated at 5,087 million cubic feet; the plurality of volume44 percentis on state and local government lands with the remaining volume primarily on private lands (28 percent) and national forests (23 percent). Fifty-seven percent of timberland acres and 93 percent of the growing-stock volume is in sawtimber stands, with Sitka spruce forest type predominating. Most timberland in south-central Alaska is of relatively low productivity, producing less than 50 cubic feet per acre per year. For timberland acres on state and private lands, average annual mortality and harvest exceeded average annual growth.