Runoff variations at the source of the Yangtze River over the past 639 years based on tree-ring data
文献类型：期刊论文
| 作者 | Li, Jinjian1,2; Shao, Xuemei3 ; Qin, Ningsheng2; Li, Yuanyuan2
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| 刊名 | CLIMATE RESEARCH
 |
| 出版日期 | 2018 |
| 卷号 | 75期号:2页码:131-142 |
| 关键词 | Tree ring Runoff reconstruction Yangtze River Southeastern Qinghai-Tibet Plateau |
| ISSN号 | 0936-577X |
| DOI | 10.3354/cr01510 |
| 通讯作者 | Qin, Ningsheng(qinns0515@163.com) |
| 英文摘要 | Tree-ring width data collected at five sites near the source of the Yangtze River were used to construct a comprehensive regional chronology. The tree-ring widths exhibited a significant positive correlation with the runoff in the source area of the Yangtze River in multiple months. The most significant correlation was with annual runoff (previous September to the current August), the correlation coefficient was 0.665 (n = 56,p < 0.0001). A record of the annual runoff of the Yangtze River at its source from 1374 to 2012 was then reconstructed. The reconstruction equation was stable and explained 44.2 % of the variance (adjusted R-2 = 43.2%, n = 56, F = 42.86). The reconstruction indicated that 17 periods of high flow and 14 periods of low flow have occurred over the past 639 yr. The longest periods of high flow occurred during 1615-1643 and 1755-1783, while the longest period of low flow occurred during 1445-1490. The wet and dry periods in the reconstruction coincided with similar periods identified in a time series of Palmer drought severity index values obtained near the research area, and a time series of reconstructed streamflow in the upper Yellow River. Several important periods of low flow also coincided with periods of drought that affected broader regions. An analysis using the multi-taper method demonstrated that periodic variations in runoff of 2-5 yr, ca. 20 yr, and ca. 50 yr have occurred at the source of the Yangtze River. Furthermore, the relationships between annual runoff and solar activity and the intensity of the southwest Asian summer monsoon (also known as the Indian monsoon) are discussed in this article. |
| WOS关键词 | NORTHEASTERN TIBETAN PLATEAU ; CLIMATE-CHANGE ; TEMPERATURE RECONSTRUCTION ; STREAMFLOW RECONSTRUCTION ; PRECIPITATION VARIATION ; SABINA-TIBETICA ; CHINA ; QINGHAI ; MONSOON ; SUMMER |
| 资助项目 | National Natural Science Foundation of China[41375166] ; National Natural Science Foundation of China[41405077] ; National Natural Science Foundation of China[41301041] |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000434378400004 |
| 出版者 | INTER-RESEARCH |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/54746]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Qin, Ningsheng |
| 作者单位 | 1.Chengdu Univ Informat Technol, Sch Atmospher Sci, Chengdu 610225, Sichuan, Peoples R China 2.China Meteorol Adm, Inst Plateau Meteorol, Chengdu Heavy Rain & Drought Flood Disasters Plat, Key Lab Sichuan Prov, Chengdu 610072, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Jinjian,Shao, Xuemei,Qin, Ningsheng,et al. Runoff variations at the source of the Yangtze River over the past 639 years based on tree-ring data[J]. CLIMATE RESEARCH,2018,75(2):131-142. |
| APA | Li, Jinjian,Shao, Xuemei,Qin, Ningsheng,&Li, Yuanyuan.(2018).Runoff variations at the source of the Yangtze River over the past 639 years based on tree-ring data.CLIMATE RESEARCH,75(2),131-142. |
| MLA | Li, Jinjian,et al."Runoff variations at the source of the Yangtze River over the past 639 years based on tree-ring data".CLIMATE RESEARCH 75.2(2018):131-142. |
入库方式： OAI收割
来源：地理科学与资源研究所
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