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| 1 | 中国南方植被的变化显示文摘为揭示自末次盛冰期以来中国南方植被的变化规律,文章在前人工作的基础上,通过在一些研究薄弱区布钻取芯,建立钻孔剖面高分辨率的时间标尺和胞粉序列,以恢复研究区过去约2万年以来的植被变化过程.文中分别给出中国南方18、9和6ka BP前后的植被分带图和各区域植物的分布特征.研究表明:18ka BP前的植被带分布与现在存在着明显的差异,其中西部由西北向东南依次为寒温性针叶林与高寒草甸草原带、温带针阔叶混交林带/暖温带落叶阔叶林带,中东部由北向南依次分布温带针阔叶混交林带、暖温带落叶阔叶林带,以及北亚热带常绿、落叶阔叶混交林带;9ka BP前后的植被面貌发生了明显的变化,除西北部局部地处山地温性针阔叶混交林带外,其他地区由北向南依次分布北亚热带常绿、落叶阔叶混交林亚带,中亚热带典型常绿阔叶林亚带,南亚热带季风常绿阔叶林亚带/热带季雨林和雨林带;6ka BP前后的植被面貌与9ka BP前后的变化不大,但各个植被带的北缘略有北移,反映当时总体气候变得更加温暖.中国南方2万年以来的植被变化,很大程度上受到环境变迁的驱使,其中气候变化为主要影响因素,人类活动的影响在后期变得越来越明显,而在长江下游和三角洲地区,海平面变化对植物的分布同样构成一定的影响. | 王伟铭 李春海 舒军武 陈炜 | 2019 | 中国科学:地球科学2019，49，8： | 7 |
| 2 | 秦汉时期南方天然林木的分布及人类影响显示文摘孢粉、考古及历史文献等资料显示,春秋以前,我国南方地区均处于温暖湿润的气候状态,喜暖的常绿树种分布广泛,在木本植被比例中占主要地位。春秋以后,我国南方多数地区气温有所波动,树种结构也相应发生了变化。春秋至东汉期间,云贵地区受气候变凉的影响,常绿林逐渐减少,而四川地区的常绿及落叶林则均有增长;岭南地区的常绿林一直处于主要地位,广西地区受温度降低的影响,针叶林也有所增长;长江中下游地区气候波动剧烈,常发生常绿阔叶林与针叶、阔叶林的混交林交替演变。除气候因素外,人类活动也影响着天然植被的变化。但因当时生产力的水平低下,人类影响较弱,南方广大地区的天然林木在秦汉时期得以较好地保存。 | 罗启龙 晋文 | 2017 | 中国农史2017，36，4： | 0 |
| 3 | Changes of vegetation in southern China显示文摘In order to reveal the changes of vegetation in southern China since the Last Glacial Maximum, we have established high-resolution time scales and palynological sequences of borehole profiles by drilling cores in some weak areas of the research to restore vegetation changes over the past 20,000 years on the basis of previous work. This paper gives the vegetation zoning maps of 18, 9 and 6 ka BP respectively in southern China, and describes the distribution characteristics of plants in different zones/subzones. The results show that the vegetation zonations around 18 ka BP were significantly different from that at present.It appeared in turn with Cold-temperate coniferous forest and alpine meadow steppe zone, and Temperate mixed coniferous and broad-leaved forest zone/warm temperate deciduous broad-leaved forest zone from northwest to southeast in the west, and Temperate mixed coniferous and broad-leaved forest zone, Warm temperate deciduous broad-leaved forest zone, and Northern subtropical mixed evergreen and deciduous broad-leaved forest zone from north to south in the central and east. The vegetation distribution around 9 ka BP changed distinctively. Except that the northwest part was located in Mountain temperate mixed coniferous and broad-leaved forest zone, the vegetation in other areas occurred in turn with North subtropical mixed evergreen and deciduous broad-leaved forest subzone, Mid-subtropical typical evergreen broad-leaved forest subzone, and South subtropical monsoon evergreen broad-leaved forest subzone/Tropical seasonal rainforest and rainforest zone from north to south.There was little change in the appearance of vegetation zonations between 6 and 9 ka BP, but the northern edge of each vegetation belt moved a little northward, reflecting that the overall climate became warmer around 6 ka BP. The vegetation changes in southern China over the past 20,000 years were largely driven by environmental changes. Climate change was the main factor affecting the vegetation distribution. The impact of human activities became more and more remarkable in the later period. In the lower reaches of the Yangtze River and the delta region, sea level changes also influenced the vegetation distribution. | Weiming WANG Chunhai LI Junwu SHU Wei CHEN | 2019 | Science China Earth Sciences2019，62，8： | 0 |
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