Mountain pine beetle attack severity data in lodgepole pine in the Northern Rockies from 1999-2014

This feature class [lpp_mpb_USFSR1_20160601] contains stand characteristics of lodgepole pine in 2002 and mountain pine beetle attack severity data from 1999-2014 summarized by subwatershed in the USDA Northern Region 1. The geographic area covered includes the western portion of USDA Northern Region 1, which includes Washington, Idaho, Montana, and Wyoming. Lodgepole pine stand characteristics are summaries of forest parameter data created by the USDA Forest Service for The National Scale Risk Assessment of Tree Mortality Due to Major Insects and Disease (Krist et al. 2014). Mountain pine beetle attack severity was obtained from the Aerial Insect and Disease Detection Survey (USDA Forest Service Region 1 State & Private Forestry Forest Health Protection 2015). Subwatershed polygons are defined by the 12 code hydrological unit code established by the USGS National Watershed Boundary Dataset (2015), which is part of the USGS National Hydrography Dataset (2015). Additional subwatershed attributes included in these data were developed by finding coverages for specific ranges of stand characteristics in proportion to the area of the subwatershed.
These data provide subwatershed summaries of lodgepole pine (Pinus contorta) characteristics and mountain pine beetle (Dendroctonus ponderosae Hopkins) severity during the 2000's (1999-2014) outbreak in the USDA Forest Service, Northern Region (R1).
For more details on these data see the associated publication Howard et al. (IN PRESS). Original metadata date was 09/05/2018. Minor updates to metadata were made on 07/10/2020.