Kline, J. 2013. Sample points showing structure (building) counts within 80-acre surrounding circles for the four-county Portland/Vancouver metropolitan area, for the years 1975, 1985, 1995, and 2005.. Portland-Vancouver Urban Long-Term Research Area. Forest Science Data Bank, Corvallis, OR. [Database]. Available: http://andlter.forestry.oregonstate.edu/data/abstract.aspx?dbcode=UL001. Accessed 2023-12-11.
Data sets were provided by the Forest Science Data Bank, a partnership between the Department of Forest Science, Oregon State University, and the U.S. Forest Service Pacific Northwest Research Station, Corvallis, Oregon. Significant funding for these data was provided by the National Science Foundation Long-Term Ecological Research program (DEB-02-18088).
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