室外器皿蒸发同位素实验研究  

Isotopic variations by means of outdoor evaporation pan experiments

作　　者：王涛[1] 包为民[2] 徐海丽[1] 朱祯[1] 范瑞琪[1] 胡海英[3] 

机构地区：[1]中国水电顾问集团成都勘测设计研究院,四川成都610072 [2]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 [3]华南理工大学土木与交通学院,广东广州510640

出　　处：《河海大学学报（自然科学版）》2011年第3期264-268,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金(50679024);教育部长江学者和创新团队发展计划(IRT0717);高等学校学科创新引智计划(B08048)

摘　　要：通过室外器皿蒸发同位素实验,分析同位素时段平均分馏系数与温度、相对湿度、器皿蒸发量3种单因素之间的函数关系,并构建基于质量守恒原理和3种不同函数关系的蒸发分馏同位素模型,模拟器皿剩余水体同位素组成变化.实验结果表明,分馏系数与蒸发量关系是所得到的分馏关系中最为稳定而有效的.The function relationships among isotopic fractionation factor,temperature,relative humidity and evaporation rate were investigated through outdoor evaporation pan experiments.Three different isotopic fractionation models based on the isotopic balance and the function relationships were established to simulate the isotopic variations of residual water in the pan.The experimental results show that the relationship between the isotopic fractionation factor and the evaporation rate is the most stable and effective among the above relationships and can be employed to simulate the isotopic variations of residual water in the pan.

关 键 词：同位素 分馏 器皿蒸发 蒸发量 

分 类 号：P334.1[天文地球—水文科学]