过去5万年来珠江流域火历史的南海沉积记录
文献类型：期刊论文
| 作者 | 裴文强; 万世明; 谭扬 ; 瞿成利; 殷学博; 李安春
|
| 刊名 | 海洋地质与第四纪地质
 |
| 出版日期 | 2017-06-28 |
| 卷号 | 37期号:3页码:47-57 |
| ISSN号 | 0256-1492 |
| 关键词 | sediment source black carbon Pearl River Basin Fire history the Last Glaciation South China Sea 物源 黑碳 珠江流域 火历史 末次冰期 南海 |
| DOI | DOI:10.16562/j.cnki.0256-1492.2017.03.005 |
| 其他题名 | FIRE HISTORY IN PEARL RIVER BASIN SINCE 50kaBP: SEDIMENT RECORDS FROM THE SOUTH CHINA SEA |
| 产权排序 | (1) 中国科学院海洋研究所中国科学院海洋地质与环境重点实验室 ; (2) 中国科学院大学 ; (3) 中国科学院烟台海岸带研究所 |
| 文献子类 | Article |
| 英文摘要 | Black carbon(BC),a special kind of charted materials,is the product of incomplete combustion, which can be found in soils,sediments,atmosphere and ice cores.Due to its physical and chemical inertness, BC is often used as a proxy for wildfires reconstruction.Here we present a combined analysis of clay minerals,major and trace elements,black carbon content and isotopes of sediments from core K6-2on the inner continental shelf of the northwestern South China Sea in order to constrain the sediment source and further reconstruct the fire history of South China.Clay mineral assemblages and trace elements composition suggest that the fine-grained silicate fractions of the sediment are mainly derived from Pearl River by the Guangdong offshore current.Therefore,BC of core K6-2can be used to reconstruct fire history around the Pearl River Basin.From this study,we draw the following conclusions:(1)47~27kaBP:fire activities were relatively high,but showed a decrease trend since 35kaBP.(2)13~6kaBP:fire activities were almost the highest except for some particular phases.(3)6~4kaBP:fire activities weakened than before. In general,there were more fires when climate was warmer and wetter,and less fires when climate became colder and drier,suggesting the dominant control of climate on fire dynamics since 50kaBP.Further study indicates that an increase in temperature can always promote fires while an increase in precipitation may reduce fires.So fire activities around the region may be more frequent with global warming.However,intensified human activities such as deforestation for farmland,slash-and-burn cultivation,metal smelting and wars may play important roles in increasing fire activities since 4kaBP. |
| WOS关键词 | Geology |
| WOS研究方向 | Geology ; 地质学 |
| 语种 | 中文 |
| CSCD记录号 | CSCD:6029038 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/24270]  |
| 专题 | 烟台海岸带研究所_支撑部门 |
| 作者单位 | 1.中国科学院海洋研究所中国科学院海洋地质与环境重点实验室; 2.中国科学院大学; 3.中国科学院烟台海岸带研究所 |
| 推荐引用方式 GB/T 7714 | 裴文强,万世明,谭扬,等. 过去5万年来珠江流域火历史的南海沉积记录[J]. 海洋地质与第四纪地质,2017,37(3):47-57. |
| APA | 裴文强,万世明,谭扬,瞿成利,殷学博,&李安春.(2017).过去5万年来珠江流域火历史的南海沉积记录.海洋地质与第四纪地质,37(3),47-57. |
| MLA | 裴文强,et al."过去5万年来珠江流域火历史的南海沉积记录".海洋地质与第四纪地质 37.3(2017):47-57. |
入库方式： OAI收割
来源：烟台海岸带研究所
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