摘要
1.Introduction The Hengduan Mountains region(HDM)in southwest China,one of the earth's 34 biodiversity hotspots,is characterized by its unique geology,dramatic topography,a climate where snow and below freezing temperatures can occur on any day of the year,by its location at elevations averaging between(1400e)2000 and4500(e5300)meters above sea level(m a.s.l.),and by one of
1. Introduction
The Hengduan Mountains region （HDM） in southwest China, one of the earth＇s 34 biodiversity hotspots, is characterized by its unique geology, dramatic topography, a climate where snow and below freezing temperatures can occur on any day of the year, by its location at elevations averaging between （1400-） 2000 and 4500 （-5300） meters above sea level （m a.s.l.）,
基金
funded by the Major Program of the National Natural Science Foundation of China (31590823 to H.S.),the National Natural Science Foundation of China(31370004 and 31570213 to J.W.Z.,31700165 to T.D.)
the National Key R&D Program of China (2017YFC0505200 to H.S.)
CAS ‘Light of West China’ Program to T.D.
