Scholarlink

<p>As global climate change intensifies and demands for water resource management increase, scientific understanding of water cycle processes has become critical. The concentration of the radioactive sulfur isotope (<sup>35</sup>S, <i>t</i><sub>1/2</sub> = 87.4 days) varies considerably among water cycle components, and this isotope has conservative chemical properties and a moderate halflife; it thus has unique advantages in short-term hydrological tracing studies. This paper reviews recent advances in the application of <sup>35</sup>S in hydrological research, encompassing research on its transport processes in precipitation, the key factors influencing its activity levels, and its utility in tracing hydrological processes, such as runoff partitioning and groundwater residence time estimation. Barriers to this research include insufficient monitoring networks and incomplete input function models. In future work, scholars should (1) establish a systematic <sup>35</sup>S field monitoring network, (2) optimize <sup>35</sup>S input function models, and (3) improve pretreatment methods for aqueous samples and reduce detection costs and pretreatment cycles. This review provides theoretical insights and methodological support to advance the application of <sup>35</sup>S in hydrogeology and the environmental sciences.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Applications of cosmogenic 35S in hydrological cycle studies

  • 期刊论文

  • 发表日期：

    2026年4月1日

查看全文
  • Yao Cheng,
  • Shichang Kang,
  • Kun Wang,
  • Yan Liu,
  • Xiaohui Zheng,
  • Tao Pu

摘要

As global climate change intensifies and demands for water resource management increase, scientific understanding of water cycle processes has become critical. The concentration of the radioactive sulfur isotope (35S, t1/2 = 87.4 days) varies considerably among water cycle components, and this isotope has conservative chemical properties and a moderate halflife; it thus has unique advantages in short-term hydrological tracing studies. This paper reviews recent advances in the application of 35S in hydrological research, encompassing research on its transport processes in precipitation, the key factors influencing its activity levels, and its utility in tracing hydrological processes, such as runoff partitioning and groundwater residence time estimation. Barriers to this research include insufficient monitoring networks and incomplete input function models. In future work, scholars should (1) establish a systematic 35S field monitoring network, (2) optimize 35S input function models, and (3) improve pretreatment methods for aqueous samples and reduce detection costs and pretreatment cycles. This review provides theoretical insights and methodological support to advance the application of 35S in hydrogeology and the environmental sciences.