A large quatities of geologic records show that the Holocene environmental changes in Xinjiang are characterized by warm-dry

although alternated with some sub-fluctuations

and exists several important bounderies

i.e

12000aBP.9000aBP.3000aBP and 1500aBP.In Holocene

it has undergone two kinds of environmental change patterns(i.e

the westlies'and the monsoonal's)in Xinjiang.so that

the disposal of thermal and moisture was more complicated

at least existed several kinds as follows

the warm-dry

the warm-moisture.the cold-dry and the cold-moisture.To general speaking

the neoglacial epoches were dominated by cold (or cool )-moisture and the inter-neoglacials by warm-dry. Particularly in" ac the Climate Optimum"

it mainly characterized by relative warm-moisture

although impricated by several sub-warm-dry periods.