Article
Environmental Sciences
Xiaoni You, Xiangying Li
Summary: The concentration of dissolved organic carbon in the Yellow River source region is mainly influenced by precipitation and temperature, showing significant seasonal variations. The deposition flux of DOC is affected by both precipitation amount and DOC concentration, with values fluctuating from year to year. The degradation of permafrost in the region has not led to a significant increase in DOC yield as previously predicted.
Article
Green & Sustainable Science & Technology
Xiaoni You, Xiangying Li, Mika Sillanpaa, Rong Wang, Chengyong Wu, Qiangqiang Xu
Summary: In a warming climate, the release and transport of carbon in rivers is expected to increase. A study conducted in the source region of the Yangtze River (SRYR) found that the concentrations of dissolved organic carbon (DOC) in groundwater, precipitation, and the river followed the sequence of groundwater > precipitation > river. The study also observed a clear seasonal variation in the DOC concentrations in the river, with the highest concentrations occurring in July and a secondary high value in August to September. It was estimated that the river transported significant amounts of DOC, primarily originating from soil erosion, and the flux of DOC was positively correlated with discharge. The study highlights the importance of permafrost degradation and glacier retreat in influencing DOC concentration in rivers and their impact on regional biogeochemical cycles.
Article
Environmental Studies
Yujie Liu, Xintong Zou, Jie Chen, Tao Pan
Summary: This study examined the socioeconomic effects of protected areas on indigenous household livelihoods in China's Three-River-Source Region (TRSR). The results showed that the establishment of the Three-River-Source National Park (TRSNP) restricted grazing activities in the protected areas, but did not significantly decrease grazing income. Subsidies from the protected area were a major portion of total household income, resulting in higher total income in the protected area compared to the nearby non-protected area. However, once subsidies cease, household incomes in the protected area may substantially decrease. The study also found that the number of income sources increased in both the protected area and non-protected area, but the protected area stimulated households to find alternative income sources to secure their livelihoods.
Article
Meteorology & Atmospheric Sciences
Rong Liu, Xin Wang, Zuoliang Wang
Summary: The study used the Lagrangian backward trajectory model to simulate the water vapour transportation paths and source regions to the three-river source region under dry and wet conditions. The results showed that during extreme drought episodes, the water vapour mainly came from land and ocean in the west, while during extremely wet states, the transportation occurred mainly to the east and south.
THEORETICAL AND APPLIED CLIMATOLOGY
(2022)
Article
Water Resources
Ting Zhang, Dongfeng Li, Xixi Lu
Summary: This study examines the changes in runoff components in the Yellow River basin on the Tibetan Plateau, and finds that rainfall flow dominates the runoff regime, followed by snowmelt flow and baseflow. The increase in total runoff is smaller in the downstream stations due to higher evapotranspiration and reduced snowmelt flow. Baseflow plays an increasingly important role in the permafrost-dominated upstream region. These findings provide insights for optimizing hydropower and irrigation systems in the Yellow River basin under a changing climate.
HYDROLOGICAL PROCESSES
(2022)
Article
Meteorology & Atmospheric Sciences
Chengcheng Meng, Xingguo Mo, Suxia Liu, Shi Hu
Summary: This study evaluated the accuracy and detection capabilities of three IMERG products in the Yellow River source region, finding that the post-real time product performed better. Results indicated higher correlation and error metrics in wetter regions. The products showed superior performance in the wet season compared to the dry season.
ATMOSPHERIC RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Wenwei Zhao, Chunzhu Chen, Qingfeng Jiang, Ming Ji, Jianan Zhen, Yufeng Yang, Dongliang Ning, Xiangzhong Li, Ji Shen
Summary: The study analyzed sediment core records from Lake Gyaring over the past 10,000 years to discuss environmental variations in the region. It found that during the early to mid Holocene, the expansion of aquatic macrophytes was favored by warm conditions and declining lake levels, while in the mid to late Holocene, the lake shifted towards being phytoplankton-dominated.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Meteorology & Atmospheric Sciences
Jiabin Liu, Inez Y. Fung, John C. H. Chiang
Summary: The rainbands in the East Asian summer monsoon migrate northward from spring to summer and are influenced by extratropical northerly winds and persistent lower-tropospheric southerly winds. The background northerlies may originate from the interaction between the jet stream and the Tibetan Plateau.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Wen-hui Liu, Guang-hao Zhou, Hai-rui Liu, Qing-peng Li, Chang-wei Xie, Qing Li, Jian-yun Zhao, Qi Zhang
Summary: As permafrost degradation has accelerated in the Sources Area of the Yellow River, numerous thermokarst lakes have been discovered. This study used Sentinel-2 images to extract thermokarst lake boundaries and analyzed their geometry across the permafrost region in the area. The results showed a significant decrease in thermokarst lake area, mainly due to the thawing of rich-ice permafrost.
JOURNAL OF MOUNTAIN SCIENCE
(2023)
Article
Environmental Sciences
Meng Li, Baisha Weng, Denghua Yan, Wuxia Bi, Hao Wang
Summary: Study shows that most lakes in the Qiangtang Plateau on the Tibetan Plateau are expanding, mainly concentrated in the middle of the plateau; changes in lake area are influenced by variations in precipitation and glaciers, with seven different driving models proposed to explain the changes in lake area.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Baojin Qiao, Jianting Ju, Liping Zhu, Hao Chen, Jinlei Kai, Qiangqiang Kou
Summary: Lake water storage is crucial for lake research, and traditional methods using bathymetric data for underwater topography estimation may lead to inaccuracies in large lakes like those found on the Tibetan Plateau. This study successfully utilized remote sensing data and in situ measurements to improve the accuracy of water storage estimation and change analysis in two lakes, highlighting the importance of considering multiple factors in lake expansion.
Article
Environmental Sciences
Juan Du, Xiaojing Yu, Li Zhou, Yufeng Ren, Tianqi Ao
Summary: This study comprehensively evaluates the climatic features and extreme precipitation in the Three River Headwaters (TRH) region of the Tibetan Plateau from 1983 to 2014 using multiple precipitation datasets. The results show consistent reproduction of climatology, interannual variability, and annual cycle among the datasets. However, significant discrepancies exist in characterizing long-term trends and extreme precipitation events.
Article
Multidisciplinary Sciences
Li Liu, Jian Chen, Jiajing Wang, Yanan Zhao, Xingcan Chen
Summary: This interdisciplinary study presents the material culture and ritual activities related to the initial southwestward migration of Yangshao populations, based on evidence from microfossil remains on ceramics, regional archaeological contexts, and ethnographic accounts. The study suggests that the early Yangshao migrants integrated with indigenous hunter-gatherers, adopting a combination of millet farming and foraging for local wild resources. It also highlights the retention of important ritual traditions from their Yellow River homelands.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Geochemistry & Geophysics
Xianmei Huang, Zhongping Lai, Liubing Xu, Lan Luo, Jiemei Zhong, Jinming Xie, Yinjun Zhou, Darryl E. Granger
Summary: This study analyzes the lakes and drainage system in the source area of the Yellow River, revealing the influence of tectonic activity and climate change on drainage integration. Through dating of paleo-shorelines and geomorphological features, the climate-driven mechanisms of lake overspill are elucidated. The results show a complex history of drainage integration in the source area of the Yellow River, influenced by both tectonic and climatic factors.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Meteorology & Atmospheric Sciences
Weiguo Wang, Hongyi Li, Zeming Xie, Xiaofan Zhu, Linhong Xiao, Xiaohua Hao, Jian Wang
Summary: The study revealed that continental water vapor source areas significantly influence precipitation over the northeastern Tibetan Plateau, with the Tibetan Plateau outside the study area and central Asia being the main contributors of water vapor.
JOURNAL OF CLIMATE
(2022)