A Spatial Index for Identifying Opportunity Zones for Woody Cellulosic Conversion Facilities

Table 1

Geographical landscape and socio-economic factors used in study.

Variable	Original data resolution	Unit	Data sources
Population density	5-digit ZCTA	People/mile^2	U.S. Census Bureau (2010) population density in each 5-digit ZCTA.
Farm net income	County	Dollar	USDA NASS Census Agriculture (2007) farm net income in each county.
Road density	5-digit ZCTA	km/km^2	U.S. Census Bureau (2010) road length
Crop cultivated land area ratio
Forest land area ratio	5-digit ZCTA	Percent	U.S. National land Cover Database (2006)
Urban Land area ratio
Water area ratio
Slope	5-digit ZCTA	Percent	U.S. National Elevation Dataset (1999) NED 1 arc second
Ecoregions Level III	Ecoregions	—	U.S. EPA (2011)
Timberland annual growth-to-removal ratio	County	—	Forest Inventory and Analysis—The Timber Products Tools (TPO) (2009)
Lands in public preserves	5-digit ZCTA	—	U.S. Forest Service (2009)
Primary wood-using mill locations	5-digit ZCTA	—	U.S. Forest Service (2009) and state mill directories