| 摘要: |
| 本文提出“生物环境容忍带”概念,讨论生物对气候环境的适应性和一定条件下的容忍性,以此为据,论证了中国东部沿海23000年以来的生物气候界线、冰缘外围环境和气候环境变迁轮廓。 |
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| ON“ENVIRONMENTAL TOLERANCE ZONE OF ORGANISMS”ANDBIOCLIMATIO FRONTIER——DISCUSSION ON THE PALEOENVIRON-MENT OF EASTERN CHINA COAST (No.1) |
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| Abstract: |
| Organisms are related closely to climate environment. The environment is called "Environmental tolerance zone of organisms", in which organism groups or individual could tolerate but not adapt thoroughly. The environment is a transitional type characterized mainly by transitional condition of climate and mixed-symbiosis. Based on the concept of "Environmental tolerance zone of organisms", the ancient Bohai Sea, continental shelf plain of north Yellow Sea and North China plain were "outer enviroment of the ice edge" 23,000-13,000a B.P., and the south frontier of the ice edge was roughly in 36-37°N, i. e. the north side of the hills-land in middle Shangdong. Mixed-symbiosis occurred in the temperate zone and subtropic zone in the north Chinaplain in the middle of the Holecene, when the temperature rose and the environment ofwarm-zone shifted towards the northern China. But that does not mean the plain of North China was subtropic climate environment at that time. |
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