摘要
通过 4组数值敏感性试验 ,利用BIOME3生态模式对末次盛冰期中国大陆植被分布状况进行了数值模拟 ,再次研究了该时期青藏高原大范围冰盖存在的可能性问题。结果表明 ,末次盛冰期大陆植被发生了大规模的变化 ,总体呈退化趋势 ;在降温 5℃、降水减少 1 0 %、二氧化碳下降 1 45× 1 0 - 6和地球轨道参数轻微变化的情况下 ,青藏高原约 1 /2的地区已经被冰覆盖 ;
With the boundary conditions for the Last Glacial Maximum (LGM), the process-based equilibrium terrestrial biosphere model BIOME3 is used to simulate the potential paleovegetation distribution over China, and to detect the possibility of large-scale ice sheet over the Tibetan Plateau during the LGM. It turns out that vegetation distribution at the LGM is quite different from that at the present day, when the boreal temperate vegetation shift southward as a consequence of drier-colder climate compared to the present day. Sensitivity numerical experiments performed by BIOME3 also reveal that a large range of continental ice sheet do exist over the Qinghai-Xizang Plateau at the LGM.
出处
《大气科学》
CSCD
北大核心
2004年第1期1-6,i001,共7页
Chinese Journal of Atmospheric Sciences
基金
国家杰出青年基金 40 1 2 5 0 1 4
中国科学院知识创新工程重要方向性项目KZCX2 SW 1 3 3和KZCX2 1 0 8
中国科学院研究生科学与社会实践创新研究类项目共同资助
