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利用孢粉分析并结合沉积学及~(14)C测年等资料,阐明青藏高原东北部若尔盖高原30ka来的古植被与古气候演变序列以及主要的气候事件。古植被经历了高寒荒漠-草原和亚高山草甸-高寒荒漠-草原、沼泽和亚高山草甸-岛状森林、沼泽和草甸-云杉、冷杉林及沼泽-岛状暗针叶林、沼泽和亚高山草甸7个阶段。气候与植被相应发生了多次变化,冰后期和全新世期间的气候事件在这里均有明显表现。
Using sporopollen analysis combined with sedimentology and ~ (14) C dating data, the evolution sequence of ancient vegetation and paleoclimate and the main climatic events in the northeastern Tibetan Plateau during the past 30 ka were elucidated. The ancient vegetation experienced alpine desert - steppe and subalpine meadows - alpine desert - steppe, swamp and subalpine meadows - island forests, swamps and meadows - spruce, fir and marsh - island dark coniferous forests, 7 stages of marsh and subalpine meadow. There have been many changes in climate and vegetation, and the climatic events during the post-ice age and during the Holocene have clearly shown here.