【摘 要】
：
The lakes on the Tibetan Plateau(TP)account for 57％ of the total lake area in China[1],which is a key component of the Asia water tower[2-4].A recent study showed that there are 1424 lakes greater than 1 km2 on the TP,while the total lake area reached 5.0
【机 构】
：
Key Laboratory of Tibetan Environment Changes and Land Surface Processes,Institute of Tibetan Platea
论文部分内容阅读
The lakes on the Tibetan Plateau(TP)account for 57％ of the total lake area in China[1],which is a key component of the Asia water tower[2-4].A recent study showed that there are 1424 lakes greater than 1 km2 on the TP,while the total lake area reached 5.0×104±791.4 km2 in 2018[5].Most lakes on the TP are closed and are less disturbed by human activities than the other inland water bodies in China.Therefore,the lake water\'s hydrochemical characteristics,through the influence of water pro-file thermal distribution,energy exchange with surface air mois-ture,and lake ecological conditions,are sensitive to climatic and environmental changes in the area[6].However,only a few main lake water parameters were achieved during the first Integrated Scientific Expedition on the TP before the 1980s[7].Even in the past few decades,there have been only a few published works on investigations on the water quality of the large lakes on the TP,such as Nam Co[8],Tangra Yumco[9],Yamzhuo Yumco[10],Mapam Yumco[11],and small valley lakes such as Ranwu Lake[12].This study,based on the hard investigation work,provides the in-situ lake water parameters of 124 closed lakes with a total lake area of 24,570 km2,occupying 53％ of the total lake area of the TP(Fig.S1 and Table S1 online),and we have presented the pri-mary result of their numerical and spatial distribution and related factor analyses.
其他文献
The information collected from the human body is fundamental for developing the Internet of Things,and may lead to intelligent and ubiquitous health care,human-computer interface,and even advanced human capabilities.However,this will require electronic de
Acute myocardial infarction(MI),one of the most common cardiovascular emergencies,is a leading cause of morbidity and mortality.Ample evidence has revealed an essential role for inflammasome activation and autophagy in the pathogenesis of acute MI.Tax1-bi
The Ediacaran Shuram excursion (SE) is widely regarded as one of the largest carbon isotope (δ13C) negative excursions in Earth history,with carbonate δ13C values down to ca.-12‰ (VPDB) [1].This event has been reported in Ediacaran strata on a global scal
The relationship between low levels of serum low-density lipoprotein cholesterol(LDL-C)and subse-quent cognitive decline remains unclear.The present study aimed to evaluate the longitudinal associa-tion between low LDL-C levels and cognition decline in th
The atmospheric inversion is an effective method for quantify-ing surface CO2 fluxes at global and regional scales using the gradi-ent of CO2 measurements and has the advantage of inferring CO2 sources and sinks over large spatial scales.The“2019 Refineme
The development of efficient strategies for constructing oxo-heterocyclic architectures is a highly significant topic in modern synthetic chemistry,due to their wide existence in plenty of natural products,medical and agricultural chemicals[1-4].It is wel
The growth of lithium(Li)whiskers is detrimental to Li batteries.However,it remains a challenge to directly track Li whisker growth.Here we report in situ observations of electrochemically induced Li deposition under a CO2 atmosphere inside an environment
The history of the Hawaiian hotspot is of enduring interest in studies of plate motion and mantle flow,and has been investigated by many researchers using the detailed history of the Hawaiian-Emperor Seamount chain.One of the unexplained aspects of this h
目的 观察GATA4对椎间盘退变的影响,并探究其促进髓核细胞发生炎症和衰老的可能机制.方法 采用免疫组化、荧光、RT-qPCR和Western blot方法检测组织标本中GATA4在不同程度退变的椎间盘中的表达水平;Lenti-GATA4慢病毒转染髓核细胞,构建稳定表达GATA4的髓核细胞;通过Western blotting和β-Gal染色阳性计数,比较GATA4诱导髓核细胞发生炎症与叔丁基过氧化物(tert-butyl hydroperoxide,TBHP)诱导髓核细胞发生炎症的效果差异;加入NF-κ
Global temperature has been increasing at unprecedented rates during the Anthropocene,impacting both natural and human sys-tems [1].Alpine biomes,among the most sensitive natural ecosys-tems to climate warming,show rapid shifts of species distribution ran