Pollen-based reconstruction of vegetation patterns of China in mid-Holocene  

作　　者：于革 孙湘君 秦伯强 宋长青 李海宇 Prentice I.C. Harrison S.P. 

出　　处：《Science China Earth Sciences》1998年第2期130-136,共7页中国科学（地球科学英文版）

基　　金：theFundingforReturnedStudentsfromtheOverseasoftheStateEducationCommissionofChina,thePostdoctoralStation ,andStatePilotLaboratoryofCoast&IslandDevelopmentofNanjingUniversity,FinancialsupporthasalsobeenprovidedbyEuropeanCommunity (EV5V CT95 0 0 75 )andb

摘　　要：Biomization provides an important way to assign pollen taxa to biomes and to simulate palaeo-vegetation patterns, so that pollen data can be mapped to reconstruct biogeography and climate. The authors have tested the applicability of this procedure to assign modern pollen surface samples from China to biomes. The procedure successfully delineated the major vegetation types of China. When the same procedure was applied to 6 ka B.P. fossil pollen samples, the reconstructions showed that the forest zones were systematically shifted northwards ca. 300\500 km beyond their present northern limits in eastern China; the area of desert and steppe vegetation was reduced compared to the present in northwestern China; the area of tundra was reduced largely on the Tibetan Plateau. This research is a contribution to the project of BIOME 6000 in Pacific-Asian regions.Biomization provides an important way to assign pollen taxa to biomes and to simulate palaeo-vegetation patterns, so that pollen data can be mapped to reconstruct biogeography and climate. The authors have tested the applicability of this procedure to assign modern pollen surface samples from China to biomes. The procedure successfully delineated the major vegetation types of China. When the same procedure was applied to 6 ka B. P. fossil pollen samples, the reconstructions showed that the forest zones were systematically shifted northwards ca. 300–500 km beyond their present northern limits in eastern China; the area of desert and steppe vegetation was reduced compared to the present in northwestern China; the area of tundra was reduced largely on the Tibetan Plateau. This research is a contribution to the project of BIOME 6000 in Pacific-Asian regions.

关 键 词：POLLEN VEGETATION PATTERNS biomization and mapping MID-HOLOCENE China. 

分 类 号：Q948.122.6[生物学—植物学]