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A study of the groundwater cycle in Sri Lanka using stable isotopes by Xianfang Song; Isamu Kayane; Tadashi Tanaka; Jun Shimada is a Environmental Science article available to read on EtoBox.

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The characteristics of the groundwater cycle were researched using stable isotope technology in western Sri Lanka where climatic conditions change greatly within a relatively short distance. The eects of local climate, surface water and topography on the groundwater cycle in the study area with similar geological conditions were investigated. Sri Lanka can be divided spatially into a dry zone, an intermediate zone and a wet zone, and also temporally into the rainy season and the dry season. The zonal characteristics of the groundwater cycle were also elucidated using stable isotopic technology. As an input d diagram of precipitation in the study area, there are obvious seasonal changes in the isotopic composition and a magnitude eect, both in the wet zone and dry zone. In the wet zone, the slope of the regression line between d D and d 18 O and deuterium excess is close to 8 and 10, respectively. However, in the dry zone, the slope of the regression line between d D and d 18 O and deuterium excess is much less than 8 and 10, respectively. In the wet zone, there is an obvious seasonal change in the isotopic composition of groundwater. The groundwater was recharged by precipitation d

Who reads A study of the groundwater cycle in Sri Lanka using stable isotopes?

Author

Xianfang Song; Isamu Kayane; Tadashi Tanaka; Jun Shimada

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0885-6087)

Published

1999

Language

EN

Field

Environmental Science (Physical Sciences)