| 摘要: |
| 通过对ZK2孔多环境代用指标的综合分析, 重建了4500年来鄱阳湖湖口地区古环境历史, 研究表明:4500aBP以来, 鄱阳湖湖口地区经历了多次冷暖、干湿交替, 沉积环境也经历了三角洲(3800aBP以前)→古赣江河流(3800-3400aBP)→三角洲(3400-3300aBP)、彭蠡泽开阔湖(3300-2300aBP)→鄱阳湖湖漫滩(2300aBP以来)的变化 |
| 关键词: 鄱阳湖 环境指标 环境演变 |
| DOI：10.18307/1999.0106 |
| 分类号: |
| 基金项目:国家自然科学基金, 49802015 |
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| Environmental Evolution since 4500 aBP in Hukou Area, Poyang Lake |
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WU Yan-hong
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Nanjing Institute of Geography Limnology, Chinese Academy of Sciences, Nanjing 210008
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| Abstract: |
| Based on the charateristics of environmental index in respect of granularity, magnetic susceptibility, TOC, δ13C and pollen of sediment from ZK2 profile which located in Meijiazhou (116°12'50"E, 29°44'30"N) in Hukou area, Poyang Lake, the paleoenvironmental evolution sequence of Hukou area for over 4500 years has been rebuilt.As a result, the sequence of the paleoenvironmental evolution in Hukou area includes four stages as: (1)4500-3800aBP, it belonged to the stage of hot and wet, inlake delta;(2)3800-3400aBP, cool and dry, river;(3) 3400-2300aBP, climate fluctuated, inlake delta to lake;(4) 2300aBP onwards, cool, floodland. |
| Key words: Poyang Lake environmental index environmental evolution |
