气候变化领域集成服务门户(CCPortal): What drives the rapid water-level recovery of the largest lake (Qinghai Lake) of China over the past half century?

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DOI	10.1016/j.jhydrol.2020.125921
	What drives the rapid water-level recovery of the largest lake (Qinghai Lake) of China over the past half century?
	Fan C.; Song C.; Li W.; Liu K.; Cheng J.; Fu C.; Chen T.; Ke L.; Wang J.
发表日期	2021
ISSN	221694
卷号	593
英文摘要	Qinghai Lake (QHL), the largest saline lake in China, is located in the Tibetan Plateau. The lake plays an important role in regional water and nutrient cycles and the sustenance of semi-arid ecosystem functions. Over the past half century, the lake experienced substantial changes in its water level in a seesaw pattern. In the first 35 years, the lake level presented a dramatic continual decrease of 2.63 m, then a reversed upward tendency appears beginning the early 21st century. The water level in the recent years has recovered to the stage from 50 years ago (around 1970). However, the driving factor causing the seesaw pattern changes remains to be unclearly understood. The goal of this study is to investigate the abnormal changes in the water level of the QHL from 1970 to 2018 and explore the primary contributor of the reversed shifts by taking the climate-driving view. Then, we discuss the possible atmospheric circulations that are tightly associated with the climate variables over the QHL catchment and its surroundings. Results show that the rapid water-level recovery of the QHL in recent years is attributable to the substantial increases in water levels in several key abnormal wet years of 2005, 2012, 2015, and 2017/2018. The lake level variations coincide with annual precipitation rather than temperature and evaporation. Besides, this study reveals that the atmospheric water vapor flux in the QHL basin is mainly transported from the west and southwest to the east. For the anomalous high-precipitation (wet) years, the total water vapor of the QHL basin increases significantly. The ENSO and other atmospheric circulation factors may be related to the precipitation variations that drive the water vapor transport of the QHL basin. © 2020 Elsevier B.V.
英文关键词	Atmospheric water vapor; Climate change; Precipitation; Qinghai Lake; Water level
语种	英语
scopus关键词	Journal of Hydrology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158311
作者单位	Key Laboratory of Watershed Geographic Sciences; Nanjing Institute of Geography and Limnology; Chinese Academy of Sciences; Nanjing; 210008; China; College of Surveying and Geotechnical Engineering; Henan Polytechnic University; Jiaozuo; 454000; China; Key Laboratory of Meteorological Disaster; Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Collaborative Innovation; Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD); Nanjing University of Information Science & Technology; Nanjing; 210044; China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering; Hohai University; Nanjing; 210098; China; College of Hydrology and Water Resources; Hohai University; Nanjing; 211100; China; Department of Geography and Geospatial Sciences; Kansas State University; Manhattan; KS 66506; United States
推荐引用方式 GB/T 7714	Fan C.,Song C.,Li W.,et al. What drives the rapid water-level recovery of the largest lake (Qinghai Lake) of China over the past half century?[J],2021,593.
APA	Fan C..,Song C..,Li W..,Liu K..,Cheng J..,...&Wang J..(2021).What drives the rapid water-level recovery of the largest lake (Qinghai Lake) of China over the past half century?.,593.
MLA	Fan C.,et al."What drives the rapid water-level recovery of the largest lake (Qinghai Lake) of China over the past half century?".593(2021).