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Eastern United States Climate Change Tree Atlas - Suitable habitat for Juglans nigra (black walnut) as measured by importance value (IV)


Original Data Basin Creation Date
2010-05-11 07:04:47
Original Data Basin Modified Date
2010-05-11 07:14:16


This dataset represents actual and predicted suitable habitat for Juglans nigra (black walnut, species code 602) in the Eastern United States as measured by importance value based on data obtained from the Forest Inventory and Analysis (FIA) project, current climate conditions, and future climate projections. This summary unit of this dataset is a 20 by 20 kilometer cell. The actual importance value (IV) was calculated based on the number of stems and basal area of a given tree species relative to other tree species on a plot using about 100,000 FIA plots (representing nearly 3 million tree records) in the 37 states within the United States east of the 100th meridian. These importance values were summarized to 20 by 20 kilometer grid [...]


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Data source
Anantha M Prasad, Louis R Iverson, Steve Matthews, Matt Peters, USDA US Forest Service
Harvested on Fri May 23 09:43:04 MDT 2014 from Data Basin Service

Additional Information


Type Scheme Key
UniqueKey Data Basin 62f7f789a305483a9c8bd9d94d30883d

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