气候变化领域集成服务门户(CCPortal): Stable isotope tracing internal recycling and evaporation losses in saline lakes on the Qinghai-Tibet Plateau

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DOI	10.1016/j.scitotenv.2023.166614
	Stable isotope tracing internal recycling and evaporation losses in saline lakes on the Qinghai-Tibet Plateau
	Wang, Zhigang; Li, Xiaoyan; Deng, Yuanhong; Liu, Xin; Zhang, Yangyang
发表日期	2023
ISSN	0048-9697
EISSN	1879-1026
卷号	903
英文摘要	Direct measuring of internal lake recycling and evaporation losses remains challenging for lakes on the QinghaiTibet Plateau (QTP). Stable isotope techniques provide an effective approach for estimating water vapor cycling ratios and evaporation losses of lakes on the QTP. In this study, the stable isotope values of saline lakes on the QTP were modeled using the stable isotope values of the sampled lake water and their influencing factors. The water vapor recycling ratio and evaporation loss (E/I) of 135 saline lakes on the QTP were evaluated and their influencing factors were revealed. The results showed that stable isotopes in saline lakes on the QTP showed significant spatial variability. Their stable isotopes were affected by the source of water vapor, recharge patterns, and local evaporation conditions. It's worth noting that the average water vapor recycling ratio of saline lakes on the QTP was 20.16 %, one-fifth of the saline lakes had a water vapor recycling ratio beyond 30 %. Saline lakes lose 26 % of their water through evaporation. 26 % of the saline lakes experienced high evaporation losses of >40 % of the total inflow. We found that the main factors controlling the water vapor recycling ratio and evaporation loss in saline lakes on the QTP were precipitation and altitude, respectively. Interestingly, the control factors of water vapor recycling ratio and evaporation loss in saline lakes with elevation above 4500 m showed significant differences compared to saline lakes with elevation below 4500 m. Therefore, the strengthening of lake system monitoring can provide reliable data support for security assessment and effective management of water resources on the QTP.
关键词	Water vapor recycling ratios Evaporation losses Saline lakes Spatial divergence Stable isotopes
英文关键词	GROUNDWATER RECHARGE; WATER-VAPOR; NAM CO; PRECIPITATION; MOISTURE; RIVER; BASIN; DELTA-O-18; DEUTERIUM; INSIGHTS
WOS研究方向	Environmental Sciences
WOS记录号	WOS:001089560600001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283457
作者单位	Beijing Normal University; Beijing Normal University; Qinghai Normal University; Qinghai Normal University
推荐引用方式 GB/T 7714	Wang, Zhigang,Li, Xiaoyan,Deng, Yuanhong,et al. Stable isotope tracing internal recycling and evaporation losses in saline lakes on the Qinghai-Tibet Plateau[J],2023,903.
APA	Wang, Zhigang,Li, Xiaoyan,Deng, Yuanhong,Liu, Xin,&Zhang, Yangyang.(2023).Stable isotope tracing internal recycling and evaporation losses in saline lakes on the Qinghai-Tibet Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,903.
MLA	Wang, Zhigang,et al."Stable isotope tracing internal recycling and evaporation losses in saline lakes on the Qinghai-Tibet Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 903(2023).