文献类型：期刊文献

英文题名：Long-term summer warming trend during the Holocene in central Asia indicated by alpine peat α-cellulose δ13C record

作者：Rao, Zhiguo[1]; Huang, Chao[2]; Xie, Luhua[3]; Shi, Fuxi[4]; Zhao, Yan[5]; Cao, Jiantao[4]; Gou, Xiaohua[4]; Chen, Jianhui[4]; Chen, Fahu[4]

机构：[1] College of Resources and Environmental Sciences, Hunan Normal University, Changsha, 410081, China; [2] Guangdong Province Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, 524088, China; [3] Key Laboratory of Marginal Sea Geology, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; [4] Key Laboratory of Western China's Environmental Systems, Ministry of Education, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China; [5] Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China

年份：2019

卷号：203

起止页码：56

外文期刊名：Quaternary Science Reviews

收录：EI(收录号：20184706116778)、Scopus(收录号：2-s2.0-85056737594)

基金：This work was supported by the National Natural Science Foundation of China (Grant Nos. 41372181 , 41772373 and 41330105 ), the Hunan provincial natural science foundation of China (Grant No. 2018JJ1017 ), and the Construct Program of the Key Discipline in Hunan Province, China . Constructive and valuable comments from Prof. Philip A. Meyers and the other anonymous reviewers are greatly appreciated. We thank Dr. Jan. Bloemendal for improving the English.

语种：英文

外文关键词：Cellulose

外文摘要：The long-term cooling or warming trend is one of the most important aspects of Holocene paleoclimatic research. However, there are currently significant discrepancies among climatic simulation results, sedimentary and synthesized Holocene temperature records. These discrepancies call for new Holocene temperature records with a robust chronology and unambiguous indicative significance. Here, we present a ca. 45-year-resolution alpine peat α-cellulose carbon isotopic (δ13C) record from the Altai Mountains in central Asia. The chronology of the record has been well-constrained by 22 AMS 14C dates of the peat α-cellulose samples. Based on detailed modern-process study results, the indicative significance of the record has been carefully determined as summer temperature indicator. The record reveals an overall trend of increasing summer temperature for the past ca. 11 ka with a warmer early (from ca. 8–6 ka BP) and late (from ca. 4–0 ka BP) Holocene and colder middle Holocene (from ca. 6–4 ka BP). The general pattern of a warmer early and late Holocene and colder middle Holocene is consistent with previously reported temperature records from central Asia, the Tibetan Plateau, and North China. The long-term warming trend in our summer temperature record is consistent with recently reported winter temperature records from high latitudes of continental Eurasia. All these results further support the reliability of our summer temperature record from central Asia. The better understandings about the Holocene temperature history and its possible driven mechanism(s) can be benefited potentially from more reliable Holocene temperature records, including our record reported in this paper. ? 2018 Elsevier Ltd