Characteristics of Vegetation Fluctuation as well as ConsequentImpact on Climate since Late Pleistocene in Handan Area, Hebei

Key words: 
• Late Pleistocene /
• sporopollen /
• palaeovegetation /
• paleoclimate /
• Handan

Abstract: Based on the sporepollen analysis of the core HZS, in Handan region, Hebei Province. The results show that the Handan region's climate since the Late Pleistocene evolution of the form of both the characteristics of the global synchronization, but also the characteristics of the region alone.The evolutional stages of palaeoclimate and palaeovegetation are recognized in the following:（1）During the Late Pleistocene, the climatic changes were from warm and humid(130~75 kaBP)→ cool and dry(75~55 kaBP)→warm and humid(40~30 kaBP)→cool and dry(30~10 kaBP), the vegetation evolutions were sylvosteppe →grassland →sylvosteppe →grassland.（2）The evolution of Holocene climate has experienced slightly cold and moderately dry(10~8 kaBP)→ warm and humid(8~3 kaBP)→slightly worm and moderately dry(3~0 kaBP) process, the vegetation evolutions were sparse sylvosteppe→ sylvosteppe→ sparse sylvosteppe. （3）Occurred in 25 kaBP around, 16 kaBP around, and 1110 kaBP cold events may be Heinrich events 3, 1 and Younger Dryas event in eastern China monsoon region's response.