Table 4 Expansion of the wildland-urban Geographic Total number of Population interface in the US, 1990 to 2010 extent (square km) housing units (millions) (millions) 1990 580 000 30.8 73 2000 690 000 37 86 2010 770 000 43.8 99 Source: The 2010 Wildland-Urban Interface of the ...
As the portal to the capital city, Tianjin became a gathering place of merchants and elite housing in great numbers. Totally, 225 cultural relics were discovered in the survey region, including 33 ancient architectures, 17 ancient tombs, 46 ancient sites, eight irrigation facilities, two river ...