...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geosciences >Stable Hydrogen and Oxygen Isotopes for Groundwater Sources of Penghu Islands, Taiwan
【24h】

Stable Hydrogen and Oxygen Isotopes for Groundwater Sources of Penghu Islands, Taiwan

机译：台湾澎湖群岛地下水源的稳定氢氧同位素

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study used stable hydrogen and oxygen isotopes as natural tracers to investigate their isotopic composition in precipitation, and in shallow and deep groundwater in the Penghu Islands in the Taiwan Strait. We aimed to understand the differences and relationships in isotope compositions within various water bodies and to evaluate the source of groundwater recharge. The hydrogen and oxygen isotopic compositions of sampled groundwater are mainly distributed along the meteoric water line in the Penghu Islands, the variations in the distribution range being minor (the δD values are distributed from ?48.2‰ to ?37.7‰, with a mean value of ?43.14 ± 2.4‰; the δ 18 O values are distributed from ?6.96‰ to ?5.46‰, with a mean value of ?6.34 ± 0.34‰). The data suggest that the groundwater is sourced mainly from local precipitation. In addition, a comparison of the hydrogen and oxygen isotopic compositions of groundwater and precipitation in Taiwan shows that the δ values for groundwater are distributed between those for precipitation during the northeast monsoon and the southwest monsoon seasons. However, some of the δ values trends towards the isotopic composition of the precipitation during the southwest monsoon season. Thus, the source of groundwater may have a closer association with precipitation during this time.
机译：这项研究使用稳定的氢和氧同位素作为自然示踪剂，研究了台湾海峡澎湖群岛的降水以及浅层和深层地下水中的同位素组成。我们旨在了解各种水体中同位素组成的差异和关系，并评估地下水的补给源。澎湖群岛采样地下水的氢和氧同位素组成主要分布在沿流水线处，分布范围的变化很小（δD值分布范围为？48.2‰至？37.7‰，平均值为？ ？43.14±2.4‰;δ18 O值分布在？6.96‰至？5.46‰之间，平均值为6.34±0.34‰）。数据表明，地下水主要来自局部降水。另外，通过对台湾地区地下水氢，氧同位素组成和降水的比较，可以看出，东北季风季节和西南季风季节的地下水δ值分布在降水量之间。但是，一些δ值在西南季风季节趋向于降水的同位素组成。因此，在此期间，地下水源可能与降水有更紧密的联系。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号