干旱区生态环境知识资源中心(Arid): Recent Intensified Runoff Variability in the Hailar River Basin during the Past Two Centuries

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DOI	10.1175/JHM-D-19-0274.1
	Recent Intensified Runoff Variability in the Hailar River Basin during the Past Two Centuries
	Li, Junxia; Bai, Xueping; Jin, Yuting; Song, Fangbo; Chen, Zhenju; Cai, Lixin; Zou, Fenghua; Jiang, Mengzhu; Yun, Ruixin; Lv, Zhaoyang
通讯作者	Chen, ZJ (corresponding author), Shenyang Agr Univ, Coll Land & Environm, Shenyang, Peoples R China. ; Chen, ZJ (corresponding author), Shenyang Agr Univ, Tree Ring Lab, Coll Forestry, Res Stn Liaohe River Plain Forest Ecosyst CFERN, Shenyang, Peoples R China.
来源期刊	JOURNAL OF HYDROMETEOROLOGY
ISSN	1525-755X
EISSN	1525-7541
出版年	2020
卷号	21 期号:10 页码:2257-2273
英文摘要	Using tree-ring data of Pinus sylvestris var. mongolica from the Hulun Buir region in northeast China, 12 annual runoff series of the Hailar River spanning the past 202-216 years were established for the first time; these included 11 branches and one for the entire basin. These reconstructions, which could explain 29.4%-52.7% of the total variance for the measured runoffs during 1956-2006, performed well in statistical verification tests. In the whole basin's reconstruction of 212 years, 34 extreme drought years (16.0%) and 41 extreme pluvial years (19.3%) were identified; 4 of the 10 most extreme years occurred after 1980. The consistent cycle and correlation revealed that the Hailar runoff had a teleconnection with the El Nino-Southern Oscillation (ENSO). The sharply increasing variance at the end of the reconstruction, accompanied by the increasing intensity of short cycles (4-8 years), indicated that runoff variability in the Hailar River basin has enhanced in the late twentieth century. This is verified by the drastic fluctuations in water level and area of rivers and lakes, and the frequent shift of natural land cover types in the Hulun Buir area in recent decades. The intensified runoff variability can be connected with the concurrently enhanced ENSO activity. Our study is the first to identify the intensification of recent runoff variability in the semiarid to arid region in northeast China from a long-term perspective. With projected enhancement of ENSO activity, the Hailar River basin will face the increased risk of extreme hydrological events.
英文关键词	Climate change ENSO Hydrologic cycle Hydrology Hydrometeorology Tree rings
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000589817700003
WOS关键词	RING-BASED RECONSTRUCTION ; EASTERN MONGOLIAN PLATEAU ; NORTHERN INNER-MONGOLIA ; TREE-RING ; CLIMATE-CHANGE ; PRECIPITATION RECONSTRUCTION ; DROUGHT RECONSTRUCTION ; SURFACE-TEMPERATURE ; HYDROLOGICAL CYCLE ; CHINA
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349018
作者单位	[Li, Junxia; Chen, Zhenju] Shenyang Agr Univ, Coll Land & Environm, Shenyang, Peoples R China; [Li, Junxia; Bai, Xueping; Jin, Yuting; Song, Fangbo; Chen, Zhenju; Cai, Lixin; Zou, Fenghua; Jiang, Mengzhu; Yun, Ruixin; Lv, Zhaoyang] Shenyang Agr Univ, Tree Ring Lab, Coll Forestry, Res Stn Liaohe River Plain Forest Ecosyst CFERN, Shenyang, Peoples R China; [Song, Fangbo] Second Inst Forestry Monitoring & Planning Inner, Ulanhot, Peoples R China; [Chen, Zhenju] Chinese Acad Sci, Qingyuan Forest CERN, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Li, Junxia,Bai, Xueping,Jin, Yuting,et al. Recent Intensified Runoff Variability in the Hailar River Basin during the Past Two Centuries[J],2020,21(10):2257-2273.
APA	Li, Junxia.,Bai, Xueping.,Jin, Yuting.,Song, Fangbo.,Chen, Zhenju.,...&Lv, Zhaoyang.(2020).Recent Intensified Runoff Variability in the Hailar River Basin during the Past Two Centuries.JOURNAL OF HYDROMETEOROLOGY,21(10),2257-2273.
MLA	Li, Junxia,et al."Recent Intensified Runoff Variability in the Hailar River Basin during the Past Two Centuries".JOURNAL OF HYDROMETEOROLOGY 21.10(2020):2257-2273.