摘要: |
本文依据古植被类型与现代气候-植被带的相关性,恢复了晚更新世晚期中国东部沿海区域的古气候环境。 |
关键词: 古气候环境 现代气候-植被带 古植被类型 |
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DISCUSSIONS ON THE PALEOENVIRONMENT ALONG THE COAST OF EASTERN CHINA IN QUATERNARY Ⅱ. ON THE PALEOCLIMATE ENVIRONMENT ALONGTHE COAST OF EASTERN CHINA DURING THELATER PERIOD OF LATE PLEISTOCENE |
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Abstract: |
There existed a cold and dry climate and a plantsdesolated period in the coast of Eastern China during the later period of late Pleistocene. In northern part of the North China Plain, there was coniferous treesmeadow herbal land with many plants of cold and dry nature, indicating a periglacial climate environment. In North China Plain and shelf plains of Bohai Sea and northern Yellow Sea, there was sparse trees-herbal vegetation, consisting mainly of Pinus, Artemisia, Chenopodiaceae and few Abies and Picea, indicating a climatic environment of the periglacial surrounding. In the shelf plain of southern Yellow Sea and its coast, there was coniferous and deciduous broadleaved mixed forests herbal vegetation, showing a temperate climatic environment, but colder and dryer. In northern shelf Plain of East China Sea and the coast area of Changjiang River mouth, there was coniferous and deciduous broad-leaved mixed forests herbal vegetation consisting of lot of summergreen forests of cool and dry climatic environment, a transition between temperate and warm temperate zones. In glacial period, influences of cold climate on the Eastern China Coast diminish in scope gradually from high to low latitudes. The mean annual temperature variation between Paleocene and present is over 10℃ in the northern North China Plain, 8-10℃ in the periglacial North China and about 4-6℃ in Eastern China. |
Key words: Paleoclimate environment Modern climatevegetation zone Paleo-vegetation type |