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| 古火灾历史重建的研究进展 | |
| 引用本文： | 占长林,曹军骥,韩永明,安芷生.古火灾历史重建的研究进展[J].地球科学进展,2011,26(12):1248-1259. |
| 作者姓名： | 占长林 曹军骥 韩永明 安芷生 |
| 作者单位： | 1. 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,陕西西安710075／西安交通大学机械工程学院,陕西西安710049／中国科学院研究生院,北京100049 2. 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,陕西西安710075／西安交通大学全球环境变化研究院,陕西西安710049 3. 中国科学院地球环境研究所,黄土与第四纪地质国家重点实验室,陕西西安710075 |
| 基金项目： | 国家杰出青年科学基金项目“黑碳地球化学研究”(编号:NSFC40925009)资助 |
| 摘 要： | 火是地球系统的重要组成部分，与气候、植被、生物地球化学循环和人类活动密切相关。火对全球气候和生态系统的影响已成为目前全球变化研究的一个热点。火灾发生后会在周围的环境中留下许多燃烧产物，如黑碳、木炭屑、多环芳烃、左旋葡萄糖等，它们广泛存在于海洋、湖泊、河流、土壤和陆地风成沉积物中；还会留下一些火灾痕迹，如树木火疤、土壤磁... |
| 关 键 词： | 火灾 黑碳 树木火疤 木炭 多环芳烃 |
Research Progress on Reconstruction of Paleofire History |
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| Zhan Changlin,Cao Junji,Han Yongming,An Zhisheng.Research Progress on Reconstruction of Paleofire History[J].Advance in Earth Sciences,2011,26(12):1248-1259. | |
| Authors: | Zhan Changlin Cao Junji Han Yongming An Zhisheng |
| Institution: | 1. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi′an710075, China;; 2. School of Mechanical Engineering, Xi′an Jiaotong University, Xi′an 710049, China;; 3. Institute of Global Environmental Change, Xi′an Jiaotong University, Xi′an710049, China;; 4. Graduate University of Chinese Academy of Sciences, Beijing100049, China |
| Abstract: | Fire is an important part of the Earth system.It is tightly coupled with climate,vegetation,biogeochemical cycles and human activities.The influences of fire on the global climate and ecosystems have become a hot topic in global change research.After the fire,many combustion products remain in the surrounding environment,such as black carbon,charcoal,polycyclic aromatic hydrocarbons and levoglucosan,which are widely found in oceans,lakes,rivers,soils and terrestrial eolian sediments.Moreover,some traces like fire scars of trees,variation of soil magnetic parameters also remain in these records.These records not only reflected the history of paleofire activity,but also the climatic conditions and vegetation patterns in historical period,so as to provide clues for reconstruction of paleofire and paleoclimate.This paper summarizes the major proxies that widely used in the paleofire history reconstruction and their potential problems.Meanwhile,it also points out the direction for the development of paleofire reconstruction in the future.Although different proxies have been successfully applied in the previous studies,due to the impact of anthropogenic activities or biological disturbance,and the differences in temporal and spatial scales,there are limitations for these indicators in the reconstruction of paleofire.This is not conducive to proper understanding the relationships between fire and human activities,climate change and the vegetation. |
| Keywords: | Fire Black carbon Fire scar of trees Charcoal Polycyclic aromatic hydrocarbons |
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