IMHE OpenIR  > 山地灾害与地表过程重点实验室
Spatiotemporal variability of drought in the northern part of northeast China
Zhang, Xuanwen1; Liu, Xiaohong1,2; Wang, Wenzhi3; Zhang, Tingjun4; Zeng, Xiaomin1,2; Xu, Guobao1; Wu, Guoju1; Kang, Huhu1
2018-05-15
Source PublicationHYDROLOGICAL PROCESSES
ISSN0885-6087
Volume32Issue:10Pages:1449-1460
AbstractThe thermal and moisture balance of permafrost regions has been altered by global warming, profoundly influencing vegetation dynamics and forest carbon cycling. To understand the spatial and temporal characteristics and driving forces responsible for changes in moisture conditions in the permafrost region of the Greater and Lesser Hinggan Mountains, northeastern China, we assessed long-term trends for temperature, precipitation, and the standardized precipitation-evapotranspiration index. From 1951 to 2014, annual mean temperature had a significant increase trend and the annual precipitation was not with significant trend. Since 1951, the annual standardized precipitation-evapotranspiration index has decreased significantly at the boundary between regions with seasonal soil freezing and permafrost, suggesting that conspicuous permafrost degradation and moisture loss has occurred. The study area can be divided into 4 parts with a different balance between thermal and moisture conditions: the northern Songnen Plains, the Hulun Buir Sand Land, the middle reaches of the Heilongjiang River, and the Mohe region. However, only the middle reaches of the Heilongjiang River showed an obvious long-term drying trend. The 4 areas showed quasi-periodic oscillation and sea surface temperature during the winter half-year affected drought intensity in the northern of Songnen Plains. When El Nino strengthened, moisture conditions increased in the northern of Songnen Plains, whereas stronger La Nina events decreased water availability. The result of this study will be beneficial for regional water resource management and prepare for potential drought hazards in the northeastern China.
Keyworddrought global warming northeastern China permafrost region spatial variation temporal variation
DOI10.1002/hyp.11503
WOS KeywordCLIMATE-CHANGE ; PRECIPITATION ; PERMAFROST ; DEGRADATION ; PLATEAU ; RUSSIA ; TRENDS ; REGION ; FOREST ; TESTS
Language英语
Funding ProjectNational Natural Science Foundation of China[41421061] ; National Natural Science Foundation of China[41571196] ; State Key Laboratory of Cryospheric Sciences[SKLCS-ZZ-2017]
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000434115000011
Funding OrganizationNational Natural Science Foundation of China ; State Key Laboratory of Cryospheric Sciences
PublisherWILEY
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23025
Collection山地灾害与地表过程重点实验室
山地表生过程与生态调控重点实验室
Corresponding AuthorLiu, Xiaohong
Affiliation1.Chinese Acad Sci, Northwest Inst Eco Environm & Resources, State Key Lab Cryosphere Sci, Lanzhou 730000, Gansu, Peoples R China
2.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710119, Shaanxi, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China
4.Lanzhou Univ, Coll Earth Environm Sci, Lanzhou 730000, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xuanwen,Liu, Xiaohong,Wang, Wenzhi,et al. Spatiotemporal variability of drought in the northern part of northeast China[J]. HYDROLOGICAL PROCESSES,2018,32(10):1449-1460.
APA Zhang, Xuanwen.,Liu, Xiaohong.,Wang, Wenzhi.,Zhang, Tingjun.,Zeng, Xiaomin.,...&Kang, Huhu.(2018).Spatiotemporal variability of drought in the northern part of northeast China.HYDROLOGICAL PROCESSES,32(10),1449-1460.
MLA Zhang, Xuanwen,et al."Spatiotemporal variability of drought in the northern part of northeast China".HYDROLOGICAL PROCESSES 32.10(2018):1449-1460.
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