Forest Health in West Coast Forests, 1997-1999
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Page : 74 pages
File Size : 18,68 MB
Release : 2000
Category : Forest ecology
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Author :
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Page : 74 pages
File Size : 18,68 MB
Release : 2000
Category : Forest ecology
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Author :
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Page : 78 pages
File Size : 38,57 MB
Release : 2000
Category : Forest ecology
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Page : 82 pages
File Size : 39,84 MB
Release : 2000
Category : Forest ecology
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Page : 0 pages
File Size : 19,14 MB
Release : 2000
Category : Forest ecology
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Page : 120 pages
File Size : 15,48 MB
Release : 2002
Category : Forest health
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Page : 218 pages
File Size : 34,36 MB
Release : 2005
Category : Forest health
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"The Forest Health Monitoring (FHM) Program's annual national report uses FHM data, as well as data from a variety of other programs, to provide an overview of forest health based on the criteria and indicators of sustainable forestry framework of the Santiago Declaration. It presents information about the status of and trends in various forest health indicators nationwide and uses statistically valid analysis methods applicable to large-scale ecological assessments. Five main sections correspond to the Santiago criteria: Biological Diversity, Productive Capacity, Health and Vitality, Conservation of Soil, and Carbon Cycling. A variety of indicators contribute information about the status of each forest ecosystem considered. Many indicators use data collected from ground plots. Such indicators include species diversity (tree and lichens), bioindicator species (lichens and vascular plants sensitive to ozone), changes in trees (crown condition, damage, and mortality), physical and chemical soil characteristics, and aboveground and belowground carbon pools. Additional information about forest health status and change is derived from data that are used to measure forest extent; data about insects and pathogens; and remotely sensed and/or ground-based data about forest fragmentation, fire, and air pollution. A sixth section presents and discusses a multivariate analysis of the indicators. The technique provides a composite picture of forest health, based on statistically significant principal components."--P. ii.
Author : United States. Forest Health Protection
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Page : 70 pages
File Size : 21,26 MB
Release : 2001
Category : Forest insects
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Page : 70 pages
File Size : 48,56 MB
Release : 1998
Category : Forest insects
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Page : 120 pages
File Size : 40,86 MB
Release : 2005
Category : Forests and forestry
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Page : 940 pages
File Size : 16,94 MB
Release : 1997
Category : Government publications
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