Forest health monitoring: 2006 national technical report
- Author(s): Ambrose, Mark J.; Conkling, Barbara L.
- Date: 2009
- Source: Gen. Tech. Rep. SRS-117. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 118 p.
- Station ID: GTR-SRS-117
The Forest Health Monitoring Program’s annual national technical report
presents results of forest health analyses from a national perspective using
data from a variety of sources. The report is organized according to the
Criteria and Indicators for the Conservation and Sustainable Management of
Temperate and Boreal Forests of the Santiago Declaration. Drought in 2005
is presented, and drought over the decade 1996–005 is compared with the
historical average. The relationship between lightning frequency and forest
fire occurrence is investigated. National air pollution data are used to estimate
the exposure of forests to ozone, wet sulfate deposition, and wet deposition of
inorganic nitrogen. Baseline results of lichens, as an indicator of air pollution
in the Pacific Northwest, are presented. Aerial survey data are used to identify
hotspots of insect and disease activity based on the relative exposure to
defoliation- and mortality-causing agents. Marine cargo data are analyzed to
identify locations where exotic insect pests are likely to be introduced. Forest
Inventory and Analysis crown condition data are analyzed to identify spatial
clusters of plots where trees have relatively poor crowns, which might indicate
forest health problems.
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