同位素D与18O在水环境中的应用研究进展

回顾了环境同位素的应用发展简史,重点阐述了环境稳定同位素D与^18O的应用原理和标准,以及在水资源形成与水环境演化中的最新研究进展。

Progresses of the Applied Study on the Isotopic D and 18O in Aqueous Environment

Water is the most active factor in environment. The aqueous environment quality is an important factor in controlling the circulation track of ecological environment, and its evolution is caused by both natural and artificial factors. Currently, the isotopic technology is extensively applied in studying aqueous environment, in which the isotopic D and 18O are the most ideal environmental steady isotopes in tracing water circulation. The dynamical process of the formation, movement and mix of waters can be studies by applying the composition characteristics of isotopic D and 18O contained in natural waters, thus the main processes of water resources formation and aqueous environment evolution as well as their driving forces can be revealed, and all these are of great significance for exactly understanding and evaluating water resources so as to achieve the sustainable utilization of water resources and safely control aqueous environment. Moreover, the application of D and 18O in the ecological environment related to water can provide the technological means and scientific basis for improving the salinized ecological environment and inversing the paleo-climate, water sources of plants, and composition mechanism of organic matters. In this paper, the brief development history of the application of environmental isotopes is reviewed, the application theory and standards of the environmental steady isotopic D and 18O, and the new progress of the applied study on water resources formation and aqueous environment evolution are mainly discussed.