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Data represent presence/absence for cedar decline occurrence. Cedar decline refers to the dying or decline of yellow-cedar (Chamaecyparis nootkatensis) forests in Southeast Alaska and is characterized by red or yellow foliage in trees currently dying, or by white-gray snags of old mortality. Mapped snags can be standing dead as long as eighty years. The data were collected via aerial sketch mapping techniques and recorded on 1:250,000 USGS base maps from 500-3000 foot above ground level(AGL) observations. Survey coverage has been most intense for forests adjacent to shorelines and waterways. Data are collected, refined and updated on an annual basis. This data represent not one year's mortality but the cumulative...
This web map provides a watershed index of surface drinking water importance, a watershed index of forest importance to surface drinking water, and a watershed index to highlight the extent to which development, fire, and insects and disease threaten forests important for surface drinking water. This tabular dataset is meant to be joined with the NRCS Watershed Boundary Dataset HUC-12. The results of this assessment provides information that can identify areas of interest for protecting surface drinking water quality. The spatial dataset can be incorporated into broad-scale planning, such as the State Forest Action Plans, and can be incorporated into existing decision support tools that currently lack spatial...
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This dataset provides a watershed index of surface drinking water importance, a watershed index of forest importance to surface drinking water, and a watershed index to highlight the extent to which development, fire, and insects and disease threaten forests important for surface drinking water. This symbology for this layer is based on the index value for insect and disease threat to forests which are important to surface drinking water on a range from 1-100.
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The Forest to Faucets dataset provides a watershed index of surface drinking water importance, a watershed index of forest importance to surface drinking water, and a watershed index to highlight the extent to which development, fire, and insects and disease threaten forests important for surface drinking water. This layer displays the percent of the HUC watershed that is threatened bu insects and disease. For further information, see the methods paper titled, "From the Forest to the Faucet: Drinking Water and Forests in the US" located at http://www.fs.fed.us/ecosystemservices/FS_Efforts/forests2faucets.shtml.
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This dataset provides a watershed index of surface drinking water importance, a watershed index of forest importance to surface drinking water, and a watershed index to highlight the extent to which development, fire, and insects and disease threaten forests important for surface drinking water.
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The USDA’s Insect and Disease Survey dataset was used to investigate the distribution and timing of outbreaks across the SRLCC. The mortality of trees due to agents other than fire across the SRLCC was extensive from 2001 through 2010. Insects and Disease Survey 2001-2010. U.S. Department of Agriculture, Forest Service. [Online]. Available: http://foresthealth.fs.usda.gov/portal/Flex/IDS [2014, February 8].
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The Forests to Faucets project uses a GIS to model and map the land areas across the United States that are most important to surface drinking water sources, as well as to identify forested areas important to the protection of drinking water and areas where drinking water supplies might be threatened by development, insects and diseases, and wildland fire. The results of this assessment provide information that can identify areas of interest for protecting surface drinking water quality. The spatial dataset can be ncorporated into broad-scale planning and can help identify areas for further local analysis. In addition it can be incorporated into existing decision support tools that currently lack spatial data on...
    map background search result map search result map Forests To Faucets SE Alaska Cumulative Yellow-Cedar Decline Insects and Disease 2001 to 2010 Forests to Faucets: Percent Threatened by Insects and Disease USDA Forest to Faucets - Forest Importance to Drinking Water USDA Forest to Faucets - Index of Insect and Disease Threat to Forests Important to Surface Drinking Water USDA Forest to Faucets - Percent of HUC Threatened by Insects and Disease SE Alaska Cumulative Yellow-Cedar Decline Forests to Faucets: Percent Threatened by Insects and Disease USDA Forest to Faucets - Forest Importance to Drinking Water USDA Forest to Faucets - Index of Insect and Disease Threat to Forests Important to Surface Drinking Water Insects and Disease 2001 to 2010 USDA Forest to Faucets - Percent of HUC Threatened by Insects and Disease Forests To Faucets