| 南海巽他陆架末次冰期以来的孢粉记录初步研究 |
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| 引用本文： | 王晓梅,孙湘君.南海巽他陆架末次冰期以来的孢粉记录初步研究[J].地球科学进展,2005,20(8):833-839. |
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| 作者姓名： | 王晓梅 孙湘君 |
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| 作者单位： | 同济大学海洋地质教育部重点实验室,上海,200092 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);科技基础性工作和社会公益研究专题项目;国家高技术研究发展计划(863计划) |
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| 摘 要： | 通过分析沉积速率较高、且有同位素准确测年的南海南部巽他陆架18323柱状样的孢粉记录，分析重建该地区31 ka BP以来的植被和气候变化历史。结果表明，末次冰期以前植被主要组成是热带低地雨林，到末次冰期温度降低，热带低地雨林含量减少，草本植物含量剧增，红树林几乎绝灭；再从末次冰期到融冰期气温升高，热带低地雨林回升，对海平面变化反应敏感的红树林含量稳定增加。研究认为末次冰期前到末次冰期气温降低，湿度下降，到融冰期气温波动性回升，海平面升高。
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| 关 键 词： | 巽他陆架 孢粉 植被 气温 |
| 文章编号： | 10001-8166（2005）08-0833-07 |
| 收稿时间： | 2005-06-16 |
| 修稿时间： | 2005年6月16日 |
PALYNOLOGICAL RECORDS SINCE THE LAST GLACIAL MAXIMUM ON THE SUNDA SHELF OF THE SOUTH CHINA SEA |
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| WANG Xiao-mei,SUN Xiang-Jun.PALYNOLOGICAL RECORDS SINCE THE LAST GLACIAL MAXIMUM ON THE SUNDA SHELF OF THE SOUTH CHINA SEA[J].Advance in Earth Sciences,2005,20(8):833-839. |
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| Authors: | WANG Xiao-mei SUN Xiang-Jun |
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| Institution: | Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China |
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| Abstract: | This paper presents pollen and spore data from sediments of core 18323 on the continental shelf of the southern South China Sea. The 5.4-m long profile covers the last 31 000 years including the late stage of marine oxygen isotope (MIS) stage 3. The study reveals that the lowland rainforest covered the emerged southern continental shelf of the south China sea before the Last Glacial Maximum and that the lowland rainforest diminished and Herbaceae expanded on the adjacent islands during the Last Glacial Maximum, indicating cooling and drying during the ice age. During the termination and the Holocene, the expansion of mangroves and lowland rainforest shows warming of the climate, rising of the sea level and the submerging of the shelf. |
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| Keywords: | Sunda shelf Pollen and spores Vegetation Temperature |
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