蒸发皿中水面蒸发氢氧同位素分馏的实验研究

包为民; 胡海英; 王涛; 瞿思敏

蒸发皿中水面蒸发氢氧同位素分馏的实验研究

包为民^1,2,
胡海英^1,2,
王涛^1,2,
瞿思敏^1,2

1.
河海大学水文水资源与水利工程科学国家重点实验室, 江苏, 南京, 210098;
2.
河海大学水文水资源学院, 江苏, 南京, 210098

基金项目: 国家自然科学基金资助项目(50679024);"十一五"国家科技支撑计划资助项目(2006BAC05B02);河海大学水文水资源与水利工程科学国家重点实验室开放研究基金(2005406411);江苏省研究生培养创新工程(CX07B_130Z)

详细信息

作者简介:
包为民(1956- ),男,浙江东阳人,教授,主要从事水文水资源、同位素水文学研究.E-mail:wmbao@hhu.edu.cn

中图分类号: P426.22

Experimental study on the fractionation mechanism of hydrogen and oxygen stable isotopes in evaporation from water surface of evaporation pans

1.
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;
2.
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China

Funds: The study is financially supported by the National Natural Science Foundation of China(No.50679024)

摘要: 气象要素与蒸发密切相关,通过室内外不同气象条件下的器皿水蒸发实验,获得了水面蒸发氢氧稳定同位素分馏因子与气象要素的关系。实验结果表明,随着蒸发的进行,剩余水体中逐渐富集重同位素;自由水体蒸发同位素分馏在垂线上有分层现象,表层水体同位素值比垂线平均的同位素值略富集;不同温度条件下的室内蒸发实验中,温度越高,液-气间分馏系数越小,相应于同一剩余水体体积比,剩余水体稳定同位素值则越低。室外器皿水自由蒸发实验中得出的蒸发线方程斜率较大地偏离了当地降水线,表明实验期间水体蒸发分馏作用较明显。该研究为进一步揭示水体蒸发分馏规律提供了可靠的实验依据。
- 水面蒸发 /
- 氢氧同位素 /
- 分馏 /
- 蒸发皿 /
- 实验研究
Abstract: There is a close relationship between meteorological factors and evaporation.In this paper, the relationship between evaporation fractionation factor of stable isotopes and meteorological factors is analyzed through the water evaporation experiments under different meteorological conditions.The results indicate that the residual water is gradually enriched in heavy isotopes along with the evaporation In the outdoor evaporation experiment, isotopic stratification phenomenon takes place in different water layers of the evaporation pans where the isotopic ratios of surface water are more concentrated than that of deeper water due to the discrepancy of the sunlight radiation, heat convection and wind speed.It is also shown that the fractionation factor of stable isotopes is inversely proportional to the evaporation temperature.Moreover, the evaporation line of outdoor experiment obviously deviates from the local meteoric water line, which demonstrates that the evaporation action of the surface water is strong in course of the experiment Therefore, the research provides credible experimental data for revealing the evaporation fractionation mechanism further.
- water surface evaporation /
- hydrogen and oxygen isotopes /
- fractionation /
- evaporation pan /
- experimental study

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蒸发皿中水面蒸发氢氧同位素分馏的实验研究

作者简介:
包为民(1956- ),男,浙江东阳人,教授,主要从事水文水资源、同位素水文学研究.E-mail:wmbao@hhu.edu.cn

Experimental study on the fractionation mechanism of hydrogen and oxygen stable isotopes in evaporation from water surface of evaporation pans

计量

蒸发皿中水面蒸发氢氧同位素分馏的实验研究

1. 河海大学水文水资源与水利工程科学国家重点实验室, 江苏, 南京, 210098;

2. 河海大学水文水资源学院, 江苏, 南京, 210098

作者简介:
包为民(1956- ),男,浙江东阳人,教授,主要从事水文水资源、同位素水文学研究.E-mail:wmbao@hhu.edu.cn

English Abstract

Experimental study on the fractionation mechanism of hydrogen and oxygen stable isotopes in evaporation from water surface of evaporation pans

1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;

2. College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China

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目录

留言板

蒸发皿中水面蒸发氢氧同位素分馏的实验研究

作者简介: 包为民(1956- ),男,浙江东阳人,教授,主要从事水文水资源、同位素水文学研究.E-mail:wmbao@hhu.edu.cn

Experimental study on the fractionation mechanism of hydrogen and oxygen stable isotopes in evaporation from water surface of evaporation pans

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出版历程

蒸发皿中水面蒸发氢氧同位素分馏的实验研究

1. 河海大学水文水资源与水利工程科学国家重点实验室, 江苏, 南京, 210098; 2. 河海大学水文水资源学院, 江苏, 南京, 210098

作者简介: 包为民(1956- ),男,浙江东阳人,教授,主要从事水文水资源、同位素水文学研究.E-mail:wmbao@hhu.edu.cn

English Abstract

Experimental study on the fractionation mechanism of hydrogen and oxygen stable isotopes in evaporation from water surface of evaporation pans

1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China; 2. College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China

全文HTML

目录

作者简介:
包为民(1956- ),男,浙江东阳人,教授,主要从事水文水资源、同位素水文学研究.E-mail:wmbao@hhu.edu.cn

1. 河海大学水文水资源与水利工程科学国家重点实验室, 江苏, 南京, 210098;

2. 河海大学水文水资源学院, 江苏, 南京, 210098

作者简介:
包为民(1956- ),男,浙江东阳人,教授,主要从事水文水资源、同位素水文学研究.E-mail:wmbao@hhu.edu.cn

1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;

2. College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China