The transfer of oxygen isotopic signals from precipitation to drip water and modern calcite on the seasonal time scale in Yongxing Cave, central China

Wang, Quan; Wang, Yongjin; Zhao, Kan; Chen, Shitao; Liu, Dianbing; Zhang, Zhenqiu; Huang, Wei; Yang, Shaohua; Liang, Yijia

doi:10.1007/s12665-018-7607-z

Cited by 18 publications

(10 citation statements)

References 53 publications

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“…Several of the sites where winter and summer recharge ratios appear similar are places with little intra‐annual variability in precipitation δ 18 O (e.g., United Kingdom: Darling & Bath, ; Darling et al, ) or areas outside of tropical latitudes but still affected by summer monsoons (e.g., southern part of South Korea—Lee et al, ; south‐central China—Wang et al, ; and near Beijing in eastern China—von Rohden et al, ; Liu et al, ). Some of these areas possibly reflect recharge biases to intensive summer precipitation (e.g., von Rohden et al, ; Wang et al, ; section ).…”

Section: Seasonal Biases In Groundwater Rechargementioning

confidence: 99%

“…Some suggest, on the basis of isotopic data, that summer recharge ratios are similar—or greater than—winter recharge ratios (e.g., Caballero et al, ; Darling et al, ; Darling & Bath, ; Gehrels et al, ; Genty et al, ; Kortelainen, ; Lee et al, ; Liu et al, ; Riechelmann et al, ; Van Beynen & Febbroriello, ; Wackerbarth et al, ; Wang et al, ; Williams & Fowler, ; Yonge et al, ). Several of the sites where winter and summer recharge ratios appear similar are places with little intra‐annual variability in precipitation δ 18 O (e.g., United Kingdom: Darling & Bath, ; Darling et al, ) or areas outside of tropical latitudes but still affected by summer monsoons (e.g., southern part of South Korea—Lee et al, ; south‐central China—Wang et al, ; and near Beijing in eastern China—von Rohden et al, ; Liu et al, ). Some of these areas possibly reflect recharge biases to intensive summer precipitation (e.g., von Rohden et al, ; Wang et al, ; section ).…”

Section: Seasonal Biases In Groundwater Rechargementioning

confidence: 99%

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Global Isotope Hydrogeology―Review

Jasechko

2019

Reviews of Geophysics

217

124

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Groundwater 18O/16O, 2H/1H, 13C/12C, 3H, and 14C data can help quantify molecular movements and chemical reactions governing groundwater recharge, quality, storage, flow, and discharge. Here, commonly applied approaches to isotopic data analysis are reviewed, involving groundwater recharge seasonality, recharge elevations, groundwater ages, paleoclimate conditions, and groundwater discharge. Reviewed works confirm and quantify long held tenets: (i) that recharge derives disproportionately from wet season and winter precipitation; (ii) that modern groundwaters comprise little global groundwater; (iii) that “fossil” (>12,000‐year‐old) groundwaters dominate global aquifer storage; (iv) that fossil groundwaters capture late‐Pleistocene climate conditions; (v) that surface‐borne contaminants are more common in younger groundwaters; and (vi) that groundwater discharges generate substantial streamflow. Groundwater isotope data are disproportionately common to midlatitudes and sedimentary basins equipped for irrigated agriculture, but less plentiful across high latitudes, hyperarid deserts, and equatorial rainforests. Some of these underexplored aquifer systems may be suitable targets for future field testing.

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Section: Seasonal Biases In Groundwater Rechargementioning

confidence: 99%

Section: Seasonal Biases In Groundwater Rechargementioning

confidence: 99%

Global Isotope Hydrogeology―Review

Jasechko

2019

Reviews of Geophysics

217

124

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“…However, some studies have revealed that the calcite δ 18 O records reflect changes in moisture sources (e.g., Pausata et al, 2011), in particular, regarding the lower (higher) δ 18 O values derived from Indian Ocean-dominated (Pacific Ocean-dominated) moisture sources (e.g., Maher and Thompson, 2012;Tan, 2014). Two most recent studies have reconciled these two contradictory interpretations (Orland et al, 2015;Wang et al, 2018). They found that the Chinese stalagmite δ 18 O records documented a combination of changes in the isotopic fractionation of water vapor sourced from the Indian and/or Pacific Oceans, and changes in summer monsoon intensity.…”

Section: The Interpretation Of Our δ 18 Omentioning

confidence: 99%

Referee comment of cp-5

Anonymous

2019

Preprint

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“…It indicates that the speleothem δ 18 O C values in southeastern China might be controlled by both EASM and NSM precipitation, which are different from the northern and southwestern regions of monsoonal China where the speleothem δ 18 O C values are mainly influenced by monsoon precipitation. Hence, understanding the long-term and high-frequency variation of present-day precipitation δ 18 O in the area where speleothems form can help us interpret past climatic and environmental information stored in speleothem δ 18 O C (e.g., Wu et al, 2014;Duan et al, 2016;Sun et al, 2018;Wang et al, 2018;Wang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Seasonal and Inter-Annual Variations of Stable Isotopic Characteristics of Rainfall and Cave Water in Shennong Cave, Southeast China, and Its Paleoclimatic Implication

Tian

Zhang

et al. 2021

Front. Earth Sci.

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Speleothem calcite stable oxygen isotope (δ18OC) is one of the most widely used proxies in paleoclimate research, and understanding its seasonal-annual variability is very significant for palaeoclimate reconstruction. Five-year precipitation and karst cave water from 2016 to 2021 were monitored in Shennong cave, Jiangxi Province, Southeast China. The local meteoric water line (LMWL) is δD = 8.20 × δ18O + 13.34, which is similar to the global meteoric water line. The stable hydrogen and oxygen isotope (δD and δ18O) characteristics of precipitation and cave water were studied. δ18O and δD of precipitation and cave water show obvious seasonal variations. Lower precipitation δ18O and δD generally occur during summer and autumn compared with higher δ18O and δD values during winter and spring. Meanwhile, low precipitation δ18O values do not only appear in June–July when precipitation is the highest of the year but also appear in August–September when precipitation is limited. The back-trajectory analysis of monsoon precipitation moisture sources shows that the moisture uptake regions vary little on inter-annual scales; the water vapor of rainfall in June–July comes from the South China Sea and the Bay of Bengal, while the moisture source in August–September is mainly from the West Pacific and local area. The El Niño-Southern Oscillation is an important factor affecting the value of δ18O by modulating the percentage of summer monsoon precipitation in the annual precipitation and moisture source. The relationship between amount-weighted monthly mean precipitation δ18O and Niño-3.4 index shows that the East Asian summer monsoon (EASM) intensifies during La Niña phases, resulting in more precipitation in monsoon season (May to September, MJJAS) and lower δ18O values, and vice versa during El Niño phases.

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The transfer of oxygen isotopic signals from precipitation to drip water and modern calcite on the seasonal time scale in Yongxing Cave, central China

Cited by 18 publications

References 53 publications

Global Isotope Hydrogeology―Review

Global Isotope Hydrogeology―Review

Referee comment of cp-5

Seasonal and Inter-Annual Variations of Stable Isotopic Characteristics of Rainfall and Cave Water in Shennong Cave, Southeast China, and Its Paleoclimatic Implication

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