TY - JOUR
T1 - Evaluation of groundwater discharge into surface water by using Radon-222 in the Source Area of the Yellow River, Qinghai-Tibet Plateau
AU - Yi, Peng
AU - Luo, Huan
AU - Chen, Li
AU - Yu, Zhongbo
AU - Jin, Huijun
AU - Chen, Xiaobing
AU - Wan, Chengwei
AU - Aldahan, Ala
AU - Zheng, Minjie
AU - Hu, Qingfang
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grant No. 51539003 ) and the Special Fund of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering (Grant No. 20155045612 and No. 20165042512 ). In addition, this research was funded in part by the Fundamental Research Funds for the Central Universities (Grant No. 2017B10314 ).
Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/12
Y1 - 2018/12
N2 - Understanding hydrological processes in the Source Area of the Yellow River (SAYR), Qinghai-Tibet Plateau, is vital for protection and management of groundwater and surface water resources in the region. In situ water measurements of exchange rates between surface water and groundwater are, however, hard to conduct because of the harsh natural conditions of the SAYR. We here present an indirect method using in situ 222Rn measurements to estimate groundwater discharge into rivers and lakes in the SAYR. 222Rn was measured in rivers, lakes, groundwater and springs during three sampling periods (2014–2016), and the results indicate large variability in the concentration of the isotope. The data also indicate decreasing 222Rn trends in groundwater in the cold season (the Feb-2015 sampling period) which may be linked to frequency of capturing 222Rn in the frozen ground caused by geocryogenic processes. In addition, permafrost spatial extent and freeze-thaw processes have strongly affected the hydrological conditions in the region.
AB - Understanding hydrological processes in the Source Area of the Yellow River (SAYR), Qinghai-Tibet Plateau, is vital for protection and management of groundwater and surface water resources in the region. In situ water measurements of exchange rates between surface water and groundwater are, however, hard to conduct because of the harsh natural conditions of the SAYR. We here present an indirect method using in situ 222Rn measurements to estimate groundwater discharge into rivers and lakes in the SAYR. 222Rn was measured in rivers, lakes, groundwater and springs during three sampling periods (2014–2016), and the results indicate large variability in the concentration of the isotope. The data also indicate decreasing 222Rn trends in groundwater in the cold season (the Feb-2015 sampling period) which may be linked to frequency of capturing 222Rn in the frozen ground caused by geocryogenic processes. In addition, permafrost spatial extent and freeze-thaw processes have strongly affected the hydrological conditions in the region.
KW - Groundwater
KW - Rn
KW - Source Area of the Yellow river (SAYR)
KW - Surface water
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U2 - 10.1016/j.jenvrad.2018.07.003
DO - 10.1016/j.jenvrad.2018.07.003
M3 - Article
C2 - 29986317
AN - SCOPUS:85049484061
SN - 0265-931X
VL - 192
SP - 257
EP - 266
JO - Journal of Environmental Radioactivity
JF - Journal of Environmental Radioactivity
ER -