Author: James H. Miller
Publisher: DIANE Publishing
ISBN: 1437987451
Category : Science
Languages : en
Pages : 136
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Book Description
Invasions of non-native plants into forests of the Southern United States continue to go unchecked and only partially un-monitored. These infestations increasingly erode forest productivity, hindering forest use and management activities, and degrading diversity and wildlife habitat. Often called non-native, exotic, non-indigenous, alien, or noxious weeds, they occur as trees, shrubs, vines, grasses, ferns, and forbs. This guide provides information on accurate identification of the 56 non-native plants and groups that are currently invading the forests of the 13 Southern States. In additin, it lists other non-native plants of growing concern. Illustrations. This is a print on demand edition of an important, hard-to-find publication.
Author: David N. Wear
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 104
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Book Description
Forces of change; Social and economics systems; Forest area conditions; Terrestrial ecosystems; Water quality, wetlands, and aquatic ecosystems.
Author:
Publisher:
ISBN:
Category : Forest health
Languages : en
Pages : 96
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Book Description
The Forest Inventory and Analysis (FIA) Program of the U.S. Department of Agriculture, Forest Service is in the process of moving from a system of quasi-independent, regional, periodic inventories to an enhanced program featuring greater national consistency, a complete and annual sample of each State, new reporting requirements, and integration with the ground sampling component of the Forest Health Monitoring Program. This documentation presents an overview of the conceptual design, describes the sampling frame and plot configuration, presents the estimators that form the basis of FIA's National Information Management System (NIMS), and shows how annual data are combined for analysis. It also references a number of Web-based supplementary documents that provide greater detail about some of the more obscure aspects of the sampling and estimation system, as well as examples of calculations for most of the common estimators produced by FIA.
Author:
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 402
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Book Description
"Southern forests provide innumerable benefits. Forest scientists, managers, owners, and users have in common the desire to improve the condition of these forests and the ecosystems they support. A first step is to understand the contributions science has made and continues to make to the care and management of forests. This book represents a celebration of past accomplishments, summarizes the current state of knowledge, and creates a vision for the future of southern forestry research and management. Chapters are organized into seven sections: "Looking Back," "Productivity," "Forest Health," "Water and Soils," "Socioeconomic," "Biodiversity," and "Climate Change." Each section is preceded by a brief introductory chapter. Authors were encouraged to focus on the most important aspects of their topics; citations are included to guide readers to further information."
Author: James Howard Miller
Publisher:
ISBN:
Category : Alien plants
Languages : en
Pages : 106
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Book Description
Author: William R. Harms
Publisher:
ISBN:
Category : Forested wetlands
Languages : en
Pages : 12
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Book Description
Author: David N. Wear
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 116
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Book Description
Author: James L Chamberlain
Publisher: Forest Service
ISBN: 9780160945885
Category : Nature
Languages : en
Pages : 280
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Book Description
This Non-timber Forest Products' assessment serves as a baseline science synthesis and provides information for managing non-timber forest resources in the United States. This report provides technical input to the 2017 National Climate Assessment and closely follows the Intergovernmental Panel on Climate Change (IPCC) process. You will find an overview of the findings and interrelated discussions covering aspects of biophysical, social, cultural, economic, and policy dimensions of non-timber forest products and the implications of the effects of climatic variabilities and change for them. Appendix information summarizes non-timber forest products relative to geographic regions across the country. Related products: Other products produced by the U.S. Forest Service (Department of Agriculture/USDA) can be found here: https://bookstore.gpo.gov/agency/us-forest-service Find more Federal documents relating to Climate & Weather resources here: https://bookstore.gpo.gov/catalog/weather-climate
Author:
Publisher:
ISBN:
Category : Forest canopies
Languages : en
Pages : 92
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Book Description
The Forest Inventory and Analysis (FIA) Program of the Forest Service, U.S. Department of Agriculture, conducts a national inventory of forests across the United States. A systematic subset of permanent inventory plots in 38 States is currently sampled every year for numerous forest health indicators. One of these indicators, crown-condition classification, is designed to estimate tree crown dimensions and assess the impact of crown stressors. The indicator features eight tree-level field measurements in addition to variables traditionally measured in conjunction with FIA inventories: vigor class, uncompacted live crown ratio, crown light exposure, crown position, crown density, crown dieback, foliage transparency, and crown diameter. Indicators of crown health derived from the crown data are intended for analyses at the State, regional, and national levels, and contribute to the core tabular output in standard FIA reports. Crown-condition measurements were originally implemented as part of the Forest Health Monitoring (FHM) Program in 1990. Except for crown diameter, these measurements were continued when the FIA Program assumed responsibility for FHM plot-based detection monitoring in 2000. This report describes in detail the data collection and analytical techniques recommended for crown-condition classification.
Author: H. Ken Cordell
Publisher:
ISBN:
Category : Nature observation
Languages : en
Pages : 167
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Book Description
This publication presents a national study of outdoor recreation trends as part of the 2010 Renewable Resources Planning Act Assessment by the Forest Service, U.S. Department of Agriculture. The objectives are to review past trends in outdoor recreation participation by Americans, to describe in detail current outdoor recreation participation patterns, and to compare patterns across regional and demographic strata. Further objectives include describing recreation activity participation on public and private lands and providing projections of outdoor recreation participation out to the year 2060. One overriding national trend is quite evident: the mix of outdoor activities chosen by Americans and the relative popularity of activities overall have been evolving over the last several decades. One general category of activity that has been showing growth in the first decade of the 21st century is nature-based recreation. Between 2000 and 2009, the number of people who participated in nature-based outdoor recreation grew by 7.1 percent and the number of activity days grew about 40 percent. Among types of nature-based recreation, motorized activities showed growth up to about 2005, but then ended up toward the end of the 2000-2009 decade at about the same level as in 2000. The trend in hunting, fishing, and backcountry activities remained relatively flat during this period. Various forms of skiing, including snowboarding, declined during this decade. The clear growth area was within the overall group of activities oriented toward viewing and photographing nature. Generally, outdoor recreation activities are projected to grow in number of participants out to 2060. Population growth is projected to be the primary driver of growth in number of adult participants under each Resources Planning Act Assessment scenario. The top five activities in terms of growth of number of participants are developed skiing, other skiing, challenge activities, equestrian activities, and motorized water activities. The lowest rates of participant growth are visiting primitive areas, motorized off-road activities, motorized snow activities, hunting, fishing, and floating water activities. At the same time, a number of activities are projected to decline in per-capita adult participation rates.
