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

Description:

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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