Insights onto Hydrologic and Hydro-Chemical Processes of Riparian Groundwater Using Environmental Tracers in the Highly Disturbed Shaying River Basin, China
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Insights onto Hydrologic and Hydro-Chemical Processes of Riparian Groundwater Using Environmental Tracers in the Highly Disturbed Shaying River Basin, China. / Li, Baoling; Song, Xianfang; Yang, Lihu; Yao, Dongxu; Xu, Yingchun.
In: Water, Vol. 12, No. 7, 1939, 2020.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Insights onto Hydrologic and Hydro-Chemical Processes of Riparian Groundwater Using Environmental Tracers in the Highly Disturbed Shaying River Basin, China
AU - Li, Baoling
AU - Song, Xianfang
AU - Yang, Lihu
AU - Yao, Dongxu
AU - Xu, Yingchun
PY - 2020
Y1 - 2020
N2 - Understanding the hydrologic and hydrochemistry processes in the riparian area is of great importance for managing and protecting riparian water resources. This paper took a highly disturbed and polluted Shaying River Basin (SRB) of China as the study area. In this research, environmental tracers (hydrochemical and isotopic data of(222)Rn, delta O-18, and delta D) and corresponding models (two-component mixing model and(222)Rn mass balance model) were employed to investigate the hydrologic and associated hydro-chemical process of riparian groundwater. The results indicated that rivers received groundwater discharge located at Xihua (J8), Zhoukou (Y1), Luohe (S2), and Shenqiu (SY2), and the mixing extent with groundwater was greater in wet seasons than in dry seasons. The(222)Rn mass balance model showed that the flux of river water leakage was 3.27 x 10(-4)m(3)/(s center dot m) at the front of Zhoukou sluice while groundwater discharge was 3.50 x 10(-3)m(3)/(s center dot m) at the front of Shenqiu sluice during the sampling period. The cation exchange and the dissolution/precipitation of aquifer minerals (including calcite, dolomite, gypsum, and halite) were dominated by geochemical processes. The untreated sewage discharge and fertilizer usage were the main anthropogenic activities affecting the hydrochemistry process in surface water and riparian groundwater. Additionally, our results found that nitrate pollutants derived by riparian groundwater were potential threats to river quality at the lower reaches of Jialu River and Shenqiu county of Shaying River, where the nitrate inputs could be larger during the wet seasons because of higher groundwater discharge.
AB - Understanding the hydrologic and hydrochemistry processes in the riparian area is of great importance for managing and protecting riparian water resources. This paper took a highly disturbed and polluted Shaying River Basin (SRB) of China as the study area. In this research, environmental tracers (hydrochemical and isotopic data of(222)Rn, delta O-18, and delta D) and corresponding models (two-component mixing model and(222)Rn mass balance model) were employed to investigate the hydrologic and associated hydro-chemical process of riparian groundwater. The results indicated that rivers received groundwater discharge located at Xihua (J8), Zhoukou (Y1), Luohe (S2), and Shenqiu (SY2), and the mixing extent with groundwater was greater in wet seasons than in dry seasons. The(222)Rn mass balance model showed that the flux of river water leakage was 3.27 x 10(-4)m(3)/(s center dot m) at the front of Zhoukou sluice while groundwater discharge was 3.50 x 10(-3)m(3)/(s center dot m) at the front of Shenqiu sluice during the sampling period. The cation exchange and the dissolution/precipitation of aquifer minerals (including calcite, dolomite, gypsum, and halite) were dominated by geochemical processes. The untreated sewage discharge and fertilizer usage were the main anthropogenic activities affecting the hydrochemistry process in surface water and riparian groundwater. Additionally, our results found that nitrate pollutants derived by riparian groundwater were potential threats to river quality at the lower reaches of Jialu River and Shenqiu county of Shaying River, where the nitrate inputs could be larger during the wet seasons because of higher groundwater discharge.
KW - hydrochemistry
KW - environmental tracers
KW - radon
KW - riparian groundwater
KW - Shaying River
KW - SURFACE-WATER
KW - STABLE-ISOTOPES
KW - GEOCHEMICAL EVOLUTION
KW - SEMIARID AREA
KW - MASS-BALANCE
KW - RN-222
KW - QUALITY
KW - DISCHARGE
KW - RECHARGE
KW - O-18
U2 - 10.3390/w12071939
DO - 10.3390/w12071939
M3 - Journal article
VL - 12
JO - Water
JF - Water
SN - 2073-4441
IS - 7
M1 - 1939
ER -
ID: 249486607