摘要
TheTibetAutonomousRegioncoversanareaof1.2millionsquarekilometers.Itstretcheszoookilometersfromeasttowest,andioookilometersfromnorthtosouth.Withsuchavastarea,Tibethasuniquetopographiesandlandforms,aswellasacomplexecologicalenvironment.ThenorthwestoftheTibetanPlateauhasacoldclimatebecauseofitshighaltitude,anditismainlypastoral.Withaloweraltitude,
出版日期
2005年01月11日(中国期刊网平台首次上网日期,不代表论文的发表时间)