基于氢氧同位素技术的流域水源涵养研究进展  

Catchment water conservation based on stable hydrogen and oxygen isotopes: a review

作　　者：孙龙[1] 陈利顶[1,2] 杨磊 SUN Long;CHEN Liding;YANG Lei(State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085 [2]中国科学院大学,北京100049

出　　处：《生态学报》2020年第24期8872-8881,共10页Acta Ecologica Sinica

基　　金：国家自然科学基金青年项目(41701018)。

摘　　要：水源涵养有助于拦蓄降水、调节径流,影响着生态系统水文调节、水质净化等功能。在城市化及气候变化的背景下,水资源供需矛盾、水体污染等生态环境问题不断加剧。深入理解流域水源涵养过程、能力及作用是防治上述生态环境问题的基础。随着同位素水文学的发展,同位素技术在水文水资源的研究中的优越性逐渐得到凸显。氢氧同位素是天然示踪剂,在水分溯源、水分滞留时间估算等方面具有独特优势。但相关研究多关注水文过程的某一具体方面,没有形成系统、明确的水源涵养研究框架。为更好地促进氢氧同位素技术在水源涵养研究中的应用,研究总结了应用氢氧同位素技术刻画水源涵养过程、能力和作用的相关研究。从水源涵养的能力估算、过程刻画、水源涵养的"蓝""绿"作用等方面,梳理了基于氢氧同位素技术的水源涵养研究框架,明确了本领域亟待加强的研究方向。研究对于理解流域水源涵养的机理、科学评估水源涵养服务价值等方面具有重要的理论和实践意义。Eco-environmental concerns, such as water supply and demand imbalance, water pollution, have been increasingly prominent with the rapid urbanization and climate change. Water conservation/storage in catchments affects the ecosystem functions of hydrological regulation and water purification. A deep understanding of the process and capacity of water storage is the basis for managing the above-mentioned eco-environmental concerns. With the development of isotope hydrology, the superiority of isotope technology in the study of hydrology and water resources has gradually become prominent. Hydrogen and oxygen isotopes are inherent properties of water and play an important role in studies such as water traceability and water residence time estimation. However, most related studies only paid attention to a certain aspect of the hydrological process, remaining absence of a clear research framework of water conservation. To promote the applications of hydrogen and oxygen isotopes in water-storage related studies, this study summarizes the researches on the application of hydrogen and oxygen isotope to characterize the process, ability, and effects of water storage. The research framework and direction of water storage using hydrogen and oxygen isotope is summarized in terms of the process, capacity, and the effects of water conservation/storage. The study has important theoretical and practical meaning for understanding the water conservation/storage mechanism of the basin and assessing the value of water conservation/storage services.

关 键 词：水源涵养 氢氧同位素 平均滞留时间 水分来源识别 小流域 

分 类 号：TU991.11[建筑科学—市政工程]