中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院新生代地质与环境重点实验室
A 2600-year summer climate reconstruction in central Japan by integrating tree-ring stable oxygen and hydrogen in isotopes

文献类型：期刊论文

作者Nakatsuka, Takeshi12,13; Sano, Masaki11,13; Li, Zhen12,13; Xu, Chenxi10,13; Tsushima, Akane13; Shigeoka, Yuki12; Sho, Kenjiro9; Ohnishi, Keiko8; Sakamoto, Minoru7; Ozaki, Hiromasa6,7
刊名CLIMATE OF THE PAST
出版日期2020-11-11
卷号16期号:6页码:2153-2172
ISSN号1814-9324
DOI10.5194/cp-16-2153-2020
英文摘要Oxygen isotope ratios (delta O-18) of tree-ring cellulose are a novel proxy for summer hydroclimate in monsoonal Asia. In central Japan, we collected 67 conifer wood samples, mainly Chamaecyparis obtusa, with ages encompassing the past 2600 years. The samples were taken from living trees, archeological wood, architectural wood, and buried logs. We analyzed stable isotope ratios of oxygen (delta O-18) and hydrogen (delta H-2) in tree-ring cellulose in these samples (more than 15 000 rings in total) without using a pooling method and constructed a statistically reliable treering cellulose delta O-18 time series for the past 2500 years. However, there were distinct age trends and level offsets in the delta O-18 record, and cellulose delta O-18 values showed a gradual decrease as an individual tree matures. This suggested it is difficult to establish a cellulose delta O-18 chronology for lowfrequency signals by simple averaging of all the delta O-18 time series data. In addition, there were opposite age trends in the cellulose delta(2)(H), and delta H-2 gradually increased with tree age. There were clear positive correlations in the short-periodicity variations between delta O-18 and delta H-2, probably indicating a common climate signal. A comparison of the delta O-18 and delta H-2 time series in individual trees with tree-ring width suggested that the opposite age trends of delta O-18 and delta H-2 are caused by temporal changes in the degree of post-photosynthetic isotope exchange with xylem water (physiological effect), accompanied by changes in stem growth rate that are influenced by human activity in the forests of central Japan. Based on the assumptions that cellulose delta O-18 and delta H-2 vary positively and negatively with constant proportional coefficients due to climatological and physiological effects, respectively, we solved simultaneous equations for the climatological and physiological components of variations in tree-ring cellulose delta O-18 and delta H-2 in order to remove the age trend. This enabled us to evaluate the climatic record from cellulose delta O-18 variations. The extracted climatological component in the cellulose delta O-18 for the past 2600 years in central Japan was well correlated with numerous instrumental, historical, and paleoclimatological records of past summer climate at various spatial and temporal scales. This indicates that integration of tree-ring cellulose delta O-18 and delta H-2 data is a promising method to reconstruct past summer climate variations on annual to millennial timescales, irrespective of the growth environment. However, analytical and statistical methods need to be improved for further development of this climate proxy.
WOS关键词NONEXCHANGEABLE HYDROGEN ; RELATIVE-HUMIDITY ; DELTA-O-18 SERIES ; CELLULOSE ; PRECIPITATION ; VARIABILITY ; RATIOS ; MONSOON ; FRACTIONATION ; CHRONOLOGY
资助项目Research Institute for Humanity and Nature[14200077] ; Japanese Society for the Promotion of Science[23242047] ; Japanese Society for the Promotion of Science[26244049] ; Japanese Society for the Promotion of Science[17H06118]
WOS研究方向Geology ; Meteorology & Atmospheric Sciences
语种英语
出版者COPERNICUS GESELLSCHAFT MBH
WOS记录号WOS:000592421200001
资助机构Research Institute for Humanity and Nature ; Research Institute for Humanity and Nature ; Japanese Society for the Promotion of Science ; Japanese Society for the Promotion of Science ; Research Institute for Humanity and Nature ; Research Institute for Humanity and Nature ; Japanese Society for the Promotion of Science ; Japanese Society for the Promotion of Science ; Research Institute for Humanity and Nature ; Research Institute for Humanity and Nature ; Japanese Society for the Promotion of Science ; Japanese Society for the Promotion of Science ; Research Institute for Humanity and Nature ; Research Institute for Humanity and Nature ; Japanese Society for the Promotion of Science ; Japanese Society for the Promotion of Science
源URL[http://ir.iggcas.ac.cn/handle/132A11/98659]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Nakatsuka, Takeshi
作者单位1.Musashi Univ, Res Ctr, Tokyo 1768534, Japan
2.Nara Natl Res Inst Cultural Properties, Nara 6308577, Japan
3.Kyoto Univ, Grad Sch Agr, Kyoto 6068502, Japan
4.Yamagata Univ, Fac Sci, Yamagata 9908560, Japan
5.Aichi Prefectural Ctr Archaeol Operat, Yatomi 4980017, Japan
6.Univ Tokyo, Univ Museum, Tokyo 1130033, Japan
7.Natl Museum Japanese Hist, Sakura 2858502, Japan
8.Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido 0600819, Japan
9.Nagoya Inst Technol, Dept Architecture Civil Engn & Ind Management Eng, Nagoya, Aichi 4668555, Japan
10.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Nakatsuka, Takeshi,Sano, Masaki,Li, Zhen,et al. A 2600-year summer climate reconstruction in central Japan by integrating tree-ring stable oxygen and hydrogen in isotopes[J]. CLIMATE OF THE PAST,2020,16(6):2153-2172.
APA Nakatsuka, Takeshi.,Sano, Masaki.,Li, Zhen.,Xu, Chenxi.,Tsushima, Akane.,...&Mitsutani, Takumi.(2020).A 2600-year summer climate reconstruction in central Japan by integrating tree-ring stable oxygen and hydrogen in isotopes.CLIMATE OF THE PAST,16(6),2153-2172.
MLA Nakatsuka, Takeshi,et al."A 2600-year summer climate reconstruction in central Japan by integrating tree-ring stable oxygen and hydrogen in isotopes".CLIMATE OF THE PAST 16.6(2020):2153-2172.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。