Study Region Southern Yunnan Central Yunnan Northwestern Yunnan
Area 19690 km2 25424 km2 23870 km2
Latitude 21°09′ - 22°36′N 23°53′ - 25°11′ N 27°10′ - 28°27′ N
Longitude 99°58′ - 101°50′ E 100°32′ - 101°58′ E 98°53′ - 99°42′ E
Altitude 480 - 2430 m 422 - 3157 m (mostly 1300 - 2200 m) 1900 - 6740 m
Topography low mountain-basin middle mountain-valley alpine-deep valley
Climate tropical monsoon Subtropical temperate
Annual Mean Temperature 18.9 - 22.6 ℃ 14.9 - 18.9 ℃ 4.7 - 16.5 ℃
Annual Rainfall 1130 - 1510 mm 820 - 1090 mm 620 - 940 mm
Dominate Vegetation
tropical rain forest
subtropical evergreen broad-leaf forests secondary Pinus yunnanensis forests temperate sclerophyllous oak forests cold temperate coniferous forests
Number of Species 3785 2972 6106