科学通报（英文版）
科學通報（英文版）
과학통보（영문판）
CHINESE SCIENCE BULLETIN
2000年
1期
87-90,91
,共5页
South Asian monsoon%pollen records%paleovegetation and paleoclimate%Tibet
High-resolution pollen records from 6 small lakes in the Tibetan Plateau provided the details of evolution of South Asian monsoon since the Last Glacial Maximum.Prior to 16 kaBP,the region was a desert-steppe characterized by cold and dry climates,the January temperature was 7-10℃ lower than that of present and the annual precipitation only accounted for 40% of the present.The temperature and precipitation increased gradually and trees began to live in the region after 12 kaBP,but during the interval from 9.2 to 6.3 kaBP,forest and forest-meadow appeared occasionally.From 8 to 5 kaBP,both January and July temperature was 2-3℃ higher and annual precipitation was also about 200 mm higher than that of the present.After 5 kaBP,temperature and precipitation decreased linearly and steppe vegetation began to degenerate.
