caa a22 4500 445800852 CHVBK 20180317145140.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s00704-010-0370-z doi (NATIONALLICENCE)springer-10.1007/s00704-010-0370-z Summer temperature variations recorded in tree-ring δ13C values on the northeastern Tibetan Plateau [Elektronische Daten] [Guobao Xu, Tuo Chen, Xiaohong Liu, Liya Jin, Wenling An, Wenzhi Wang] The source region of the Yangtze River is experiencing ever-faster glacier retreat and land deterioration as a result of climate change; however, understanding the past climate variability in the region is still limited by lack of long-term climate records. Here, we report a temperature-sensitive annual stable carbon isotope (δ13C) series of Tibetan juniper (Sabina tibetica) tree rings from 1850 to 2002 in natural forests in the source region of the Yangtze River on the northeastern Tibetan Plateau. The stable carbon discrimination (Δ13C) is significantly negatively correlated with the regional mean summer (May, June, and July) temperature, as well as with large-scale temperature variations. The reconstructed mean summer temperature explained about 44.3% of the total variance. It also agreed well with neighboring temperature proxies, including the ice-core δ18O series from the Guoqu glacier and from Dasuopu glacier and other tree-ring proxies. The cold and warm periods indicated by the climate reconstruction also coincide well with documented glacier advances and retreats in the eastern and southeastern Tibetan Plateau. The significant correlations among the reconstructed temperature, sea surface temperature (SSTNino3), and the Southern Oscillation index suggest the influences of synoptic atmospheric circulation on low-frequency variations in temperature on the region of the Yangtze River. Springer-Verlag, 2010 Xu Guobao State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut Chen Tuo State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut Liu Xiaohong State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut Jin Liya Center for Arid Environment and Paleoclimate Research (CAEP), Key Laboratory of Western China's Environmental System (Ministry of Education), Lanzhou University, 730000, Lanzhou, People's Republic of China aut An Wenling State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut Wang Wenzhi State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut Theoretical and Applied Climatology Springer Vienna 105/1-2(2011-08-01), 51-63 0177-798X 105:1-2<51 2011 105 704 https://doi.org/10.1007/s00704-010-0370-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00704-010-0370-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xu Guobao State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Chen Tuo State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Liu Xiaohong State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Jin Liya Center for Arid Environment and Paleoclimate Research (CAEP), Key Laboratory of Western China's Environmental System (Ministry of Education), Lanzhou University, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- An Wenling State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 700 1- Wang Wenzhi State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Institute, Chinese Academy of Sciences, Donggang West Road No. 320, 730000, Lanzhou, People's Republic of China aut NATIONALLICENCE 773 0- Theoretical and Applied Climatology Springer Vienna 105/1-2(2011-08-01), 51-63 0177-798X 105:1-2<51 2011 105 704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer