亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Using hydrogen and oxygen stable isotopes to estimate soil water evaporation loss under continuous evaporation conditions

蒸发 相对湿度 土壤水分 环境科学 氧同位素 稳定同位素比值 降水 土壤科学 湿度 含水量 水文学(农业) 土层 环境化学 化学 地质学 气象学 核化学 岩土工程 物理 量子力学
作者
Yang Li,Siyuan Huo,Jing Guo,Jie Sun,Jie Pan,Deng Wang,Qiankun Tan,Bingbing Pei
出处
期刊:Hydrological Processes [Wiley]
卷期号:37 (5) 被引量:13
标识
DOI:10.1002/hyp.14885
摘要

Abstract The use of hydrogen and oxygen stable isotopes in estimating soil water evaporation loss under continuous evaporation conditions is crucial for gaining insight into soil water movement processes under different conditions. In this study, via high‐frequency meteorological monitoring and continuous soil water measurements, we investigated the variation of hydrogen and oxygen stable isotopes and soil water fluxes with soil depth and time for soil water at different depths under continuous evaporation conditions. The precipitation isotope δ rain and soil water flux changes were determined using the Craig‐Gordon model. It was shown that the isotopic fractionation of soil water in the surface layer 0–30 cm was dominated by a gaseous‐dominated transport process, and that both the δ 18 O and δD values and evaporative intensity decreased with increasing soil depth. In terms of time dynamics, the evaporation loss of soil water varies continuously with seasons and is the highest during summer. The use of δ 18 O to quantify the soil water evaporation loss provides greater accuracy than that provided by δD. The relative errors in the evaporation loss calculated based on δ 18 O and δD were 13% and 34%, respectively. A sensitivity analysis of each parameter indicated that the relative error calculated by the model is primarily determined by temperature and relative humidity uncertainty. The sensitivity analysis reveals the critical evaporation intensity of soil water at various depths from unsteady to steady state evaporation. When the relative humidity changes by 1%, the evaporation loss fraction changes from 0.001 to 0.034. The results of this study are important for quantifying the soil water resources in arid and semi‐arid areas without precipitation using stable isotopes of hydrogen and oxygen.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
clover完成签到,获得积分10
23秒前
嗯嗯嗯完成签到,获得积分10
29秒前
34秒前
35秒前
38秒前
44秒前
Wei发布了新的文献求助50
48秒前
1分钟前
1分钟前
小蘑菇应助酷酷李可爱婕采纳,获得10
1分钟前
时否十七完成签到,获得积分10
1分钟前
110o发布了新的文献求助10
1分钟前
NexusExplorer应助饱满羽毛采纳,获得10
1分钟前
李李原上草完成签到 ,获得积分0
1分钟前
合适的平安完成签到 ,获得积分10
1分钟前
1分钟前
饱满羽毛发布了新的文献求助10
2分钟前
sun完成签到 ,获得积分10
2分钟前
2分钟前
量子星尘发布了新的文献求助10
2分钟前
唐泽雪穗发布了新的文献求助40
2分钟前
2分钟前
2分钟前
clearsky应助科研通管家采纳,获得10
2分钟前
拉长的沛芹完成签到,获得积分10
3分钟前
3分钟前
3分钟前
陆上飞发布了新的文献求助10
3分钟前
Ballyhooed发布了新的文献求助10
3分钟前
3分钟前
桐桐应助酷酷李可爱婕采纳,获得10
3分钟前
陆上飞完成签到,获得积分10
3分钟前
安静的雨发布了新的文献求助10
3分钟前
深情安青应助安静的雨采纳,获得10
3分钟前
安静的雨完成签到,获得积分10
3分钟前
3分钟前
HS发布了新的文献求助10
4分钟前
4分钟前
Fu发布了新的文献求助10
4分钟前
CipherSage应助yang采纳,获得10
4分钟前
高分求助中
(应助此贴封号)【重要!!请各用户(尤其是新用户)详细阅读】【科研通的精品贴汇总】 10000
Nuclear Fuel Behaviour under RIA Conditions 500
Sociologies et cosmopolitisme méthodologique 400
Why America Can't Retrench (And How it Might) 400
Another look at Archaeopteryx as the oldest bird 390
Parenchymal volume and functional recovery after clamped partial nephrectomy: potential discrepancies 300
Optimization and Learning via Stochastic Gradient Search 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 物理化学 基因 催化作用 遗传学 冶金 电极 光电子学
热门帖子
关注 科研通微信公众号,转发送积分 4682068
求助须知:如何正确求助?哪些是违规求助? 4057710
关于积分的说明 12545356
捐赠科研通 3753017
什么是DOI,文献DOI怎么找? 2072733
邀请新用户注册赠送积分活动 1101828
科研通“疑难数据库(出版商)”最低求助积分说明 981119