Results 11 to 20 of about 563 (136)

Application of isotope technology to protecting karstic water in the Gudui Spring Area

地质科技通报, 2023
Objective Karstic spring water is an important source of water supply for the karst areas of northern China. To rationally evaluate and scientifically exploit karstic water resources, it is important to identify the recharge, runoff and discharge ...
Songtao Zhang, Hao Xie, Yongping Liang, Chunlei Tang, Chunhong Zhao, Haochi Zhang   +5 more
doaj   +1 more source

Characteristics of δ18O and δD in precipitation and its water vapor sources in the upper Urumqi River basin,Eastern Tianshan

Shui kexue jinzhan, 2013
The stable isotopes characteritics of hydrogen and oxygen in precipitation is an important aspect of the regional isotope hydrologic cycle. The variations of δD and δ18O values in event-based precipitation samples are analyzed. The samples were collected
FENG Fang, LI Zhongqin, JIN Shuang, FENG Qi, LIU Wei   +4 more
doaj   +1 more source

Quality control of Ganoderma lucidum by using C, H, O, and N stable isotopes and C and N contents for geographical traceability

Frontiers in Plant Science, 2023
RationaleGanoderma lucidum (G. lucidum) is a popular medicinal fungus that has been used in traditional medicine for decades, with its provenance influencing its medicinal and commercial worth. The amount of active ingredients and the price of G. lucidum
Ying Zhang, Ying Zhang, Kunxia Jiang, Kunxia Jiang, Sisi Chen, Lina Wang, Lina Wang, Xun Zhang, Wen Xu, Wen Xu, Wen Xu, Mun Fei Yam, Mun Fei Yam, Changhui Wu, Wei Xu, Wei Xu, Yu Lin, Yu Lin   +17 more
doaj   +1 more source

Temporal variations of precipitation driven by local meteorological parameters in southwest China: Insights from 9 years of continuous hydro-meteorological and isotope observations

Journal of Hydrology: Regional Studies, 2023
Study region: Northwest of Guangxi Province, southwest China. Study focus: Knowing the role of isotopes in precipitation can improve understanding of climate change and eco-hydrological processes in complex critical-zone systems.
Jun Zhang, Hongsong Chen, Yunpeng Nie, Zhiyong Fu, Jinjiao Lian, Zidong Luo, Fa Wang   +6 more
doaj   +1 more source

Seasonal and spatial variability in δ18O and δD values in waters of the Godavari River basin: Insights into hydrological processes

Journal of Hydrology: Regional Studies, 2020
Study region: The Godavari River is the largest non-Himalayan, monsoon-fed river in India, providing water resources for ∼75 million people. Study focus: Stable isotopes of Godavari River water in a pre-monsoon (dry) and monsoon (wet) season are used to ...
Frédérique M.S.A. Kirkels, Huub M. Zwart, Sayak Basu, Muhammed O. Usman, Francien Peterse   +4 more
doaj   +1 more source

Inter-Laboratory Comparison of Analysis for Hydrogen and Oxygen Stable Isotope Ratios in Water Samples by Laser Absorption Spectroscopy

Yankuang ceshi, 2017
Laser Absorption Spectroscopy technology is a convenient and rapid method for the simultaneous determination of hydrogen and oxygen isotope ratios in environmental water samples.
LAN Gao-yong, WU Xia, YANG Hui, TANG Wei, YING Qi-he, WANG Hua   +5 more
doaj   +1 more source

Geochemical Characteristics of Three Hot Springs from Western Thailand

Applied Environmental Research, 2020
At present a total of 118 hot springs are distributed throughout Thailand. Several studies with a focus on high-temperature hot springs related to geothermal resources were conducted in the northern and southern part of the country.
Thiwat Rattanawong, Raphael Bissen, Waraporn Kumpairoh, Sakonvan Chawchai   +3 more
doaj   +7 more sources

Hydrogen and oxygen isotope characteristics controlled by thermal stratification effect in a subtropical reservoir,SW China

Shui kexue jinzhan, 2016
To examine the relationship between thermal stratification and spatial distribution of hydrogen and oxygen isotope in Wulixia Reservoir,Guangxi,spatial characteristics and factors influencing hydrogen and oxygen isotopes were studied in during the summer
PU Junbing, LI Jianhong, WU Xia, YUAN Daoxian, ZHANG Tao   +4 more
doaj   +1 more source

Determination of the origin and recharge process of water resources in Salda Lake Basin by using the environmental, tritium and radiocarbon isotopes (Burdur/Turkey)

Bulletin of the Mineral Research and Exploration, 2020
The Salda Lake basin which is in the southwestern Turkey is an important water body in view of environmental values. We used stable isotopes (δD and δ18O), δ3H and 14C composition of the water samples to understand recharge process effective in the ...
Simge VAROL, Ayşen DAVRAZ, Fatma AKSEVER, Şehnaz ŞENER, Erhan ŞENER, Bülent KIRKAN, Ahmet TOKGÖZLÜ   +6 more
doaj   +1 more source

The main controls of the precipitation stable isotopes at Kathmandu, Nepal

Tellus: Series B, Chemical and Physical Meteorology, 2020
Precipitation stable isotopes (2H and 18O) are adequately understood on their climate controls in the Tibetan Plateau, especially the north of Himalayas via about 30 years’ studies. However, knowledge of controls on precipitation stable isotopes in Nepal
Niranjan Adhikari, Jing Gao, Tandong Yao, Yulong Yang, Di Dai   +4 more
doaj   +1 more source