大气水汽稳定同位素组成δv影响因素分析  

Atmospheric Water Vapor Stable Isotope Composition δv Influence Factors Analysis

作　　者：石俊杰 马孝义 胡笑涛 龚道枝[2,3] 梅旭荣[2] 郝卫平[2] 

机构地区：[1]西北农林科技大学水利与建筑工程学院/教育部旱区农业水土工程重点实验室,陕西杨凌712100 [2]中国农业科学院农业环境与可持续发展研究所/农业部旱作节水农业重点开放实验室,北京100081 [3]清华大学水利工程系/水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《灌溉排水学报》2012年第5期56-59,共4页Journal of Irrigation and Drainage

基　　金：国家863计划项目(2011AA100509);"十二五"国家科技支撑计划项目(2011BAD25B03;2012BAD08B01)

摘　　要：以玉米田实测数据为依据,对农田大气水汽稳定同位素组成δνv的影响因素及其相互关系进行了研究,据此发现,大气降雨、空气温度、相对湿度及平均风速是影响农田生态系统大气水汽稳定同位素组成δv的重要环境因素;其中空气温度与大气水汽稳定同位素组成δv拟合呈线性关系;相对湿度、平均风速与大气水汽稳定同位素组成δv拟合呈对数关系,其相关性均极高。After study the measured data on the farmland of atmospheric water vapor stable isotope composition δv influencing factors and their relationship,and accordingly found that： the atmosphere of rainfall,air temperature,relative humidity and average wind speed were important environmental factors,which influenced the water vapor stable isotopes composition δv of farmland ecological system;the air temperature and water vapor stable isotope composition δv were fitted in a linear relationship,while relative humidity,average wind speed were fitted in a logarithmic relationships with water vapor stable isotopic composition δv,and also the statistics showed that the correlation was admirable.

关 键 词：稳定同位素组成 影响因素 关系拟合 

分 类 号：S161[农业科学—农业气象学]