TheTibetAutonomousRegioncoversanareaof1.2millionsquarekilometers.Itstretcheszoookilometersfromeasttowest,andioookilometersfromnorthtosouth.Withsuchavastarea,Tibethasuniquetopographiesandlandforms,aswellasacomplexecologicalenvironment.ThenorthwestoftheTibetanPlateauhasacoldclimatebecauseofitshighaltitude,anditismainlypastoral.Withaloweraltitude,
