Runoff variation and its response to climate change in Huolin River catchment,Northeast China

作     者：DAN Dan CHUN Xi SHI Lei XIA Ying-ying ZHOU Hai-jun WAN Zhi-qiang DAN Dan;CHUN Xi;SHI Lei;XIA Ying-ying;ZHOU Hai-jun;WAN Zhi-qiang

作者机构：Inner Mongolia Restoration Engineering Laboratory of Wetland Eco-environment SystemInner Mongolia Normal UniversityHohhot 010022China Key Laboratory of Mongolian Plateau’s Climate SystemInner Mongolia Normal UniversityHohhot 010022China College of Geographical ScienceInner Mongolia Normal UniversityHohhot 010022China 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2021年第18卷第12期

页      面：3165-3178页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 08[工学] 081501[工学-水文学及水资源] 0815[工学-水利工程] 0706[理学-大气科学] 

基　　金：This article was financially supported by the Natural Science Plan of Inner Mongolia(2019GG020) the Postgraduate Research and Innovation Foundation of Inner Mongolia Normal University(Grant Nos.CXJJB20013) 

主　　题：Precipitation-runoff system Mann-Kendall test Abrupt change Regional response Semi-arid area 

摘      要：The Huolin River catchment(HRC)is located in the semi-arid region of Northeast China,which is very sensitive to climate *** runoff in HRC is closely related to the recovery of local vegetation in the Greater Khingan Mountains and the survival of downstream *** runoff fluctuations and increasing no-flow days confirmed the water crisis in this ***,it is extremely urgent to study the current situation and characteristics of *** this study,hydrological and meteorological data of HRC during 1956-2018 were analyzed to elucidate the processes,characteristics,trends of the river runoff and revealed its response to climate *** Mann-Kendall test and linear regression method showed that runoff in the HRC demonstrated a downward trend over the study period with a marked annual *** runoff in the high flow years was 100 times that of the low flow years,showing a typical continental climatic river *** are two runoff peak flows in the intra-annual runoff distribution in March and July,whereas two runoff valleys occurred around May and September to *** runoff positively correlates with precipitation in summer and temperature in early *** influenced by rising temperatures in April and precipitation in July is the main driving factor for the two peaks *** rose with precipitation decline and temperature increased,which may influence the runoff *** annual runoff is well synchronized with the annual precipitation,and precipitation change is the main driving factor of variation and abrupt change points of annual runoff in the *** study would be beneficial for water resource management in developing adaptation strategies to offset the negative impact of climate change in HRC.