The Multi-Scale Temporal Variability of Extreme Precipitation in the Source Region of the Yellow River

Jiang, Peng; Yu, Zhongbo; Yuan, Feifei; Acharya, Kumud

doi:10.3390/w11010092

Cited by 12 publications

(7 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A previous study indicated that the summer monsoon strongly influences the middle and lower reaches of the Yangtze River, thus leading to abundant precipitation and making the area humid [12]. A contour image of monthly precipitation during 1967-2018 shows heavy precipitation was concentrated between April and September with June as the peak value ( Figure 5), which is similar with the phenomenon in the Yellow River [13] and Dongting Lake located at the middle of the Yangtze River [4]. Ye et al [14] also reported that a large amount of surface flow was produced by heavy precipitation during wet season, which caused the rise of water level in Poyang Lake (located opposite the Huayang Lakes) adjacent to the Yangtze River.…”

Section: Relationship Between Precipitation and Water Levelsupporting

confidence: 68%

Water Level Fluctuation under the Impact of Lake Regulation and Ecological Implication in Huayang Lakes, China

Zhai

Zhong

et al. 2020

Water

View full text Add to dashboard Cite

Water level fluctuation (WLF) in shallow lakes in the middle and lower reaches of the Yangtze River has been a concern of many researchers. This work aims to investigate the effects of climate change and regulation of floodgates and the Three Gorges Dam (TGD) on WLF and lake volume in Huayang Lakes during the past 52 years. The results revealed that precipitation is the dominant factor that leads to seasonal variation of lake levels, whereas regulation of floodgates and TGD are the key drivers of hydrology regime change in the past 20 years. Natural lake regime has higher water level when there is more precipitation and less lake volume. Floodgates and TGD regulations have changed this pattern since 2003, causing less difference in water level in spite of more precipitation and lake recession. Under the combined impacts of floodgates and TGD regulations, Huayang Lakes have experienced a prolonged outflow time since 2003 and the contribution rate caused by the floodgates and TGD regulations has increased by 19.90%. Additionally, the water level of Huayang Lakes decreased by approximately 0.3~0.5 m from September to November, but it showed no alteration from January to March in the past two decades. This indicated that floodgate regulations used for agricultural irrigation and fishery culture dominate the hydrology regime in winter and early spring. This study is beneficial for aquatic ecosystem protection in floodgate-controlled lakes under the circumstance of climate change and vigorous anthropology activities.

show abstract

Section: Relationship Between Precipitation and Water Levelsupporting

confidence: 68%

Water Level Fluctuation under the Impact of Lake Regulation and Ecological Implication in Huayang Lakes, China

Zhai

Zhong

et al. 2020

Water

View full text Add to dashboard Cite

show abstract

“…Spatially, precipitation increased significantly in the northwestern SAYR (Tian et al, 2015). In summary, the climate in the SAYR has exhibited a warming-wetting trend and the extreme weather events have become more frequent (Han et al, 2018;Jiang et al, 2019).…”

Section: Introductionmentioning

confidence: 95%

Impacts of Permafrost Degradation on Hydrology and Vegetation in the Source Area of the Yellow River on Northeastern Qinghai-Tibet Plateau, Southwest China

Jin

Luo

et al. 2022

Front. Earth Sci.

View full text Add to dashboard Cite

Under a persistent warming climate and increasing human activities, permafrost in the Source Area of the Yellow River (SAYR) has been degrading regionally, resulting in many eco-environmental problems. This paper reviews the changes in air temperature and precipitation over the past 60 years and presents the distribution and degradation of alpine permafrost in the SAYR. The review is focused on the permafrost degradation–induced changes in hydrology, wetlands, thermokarst lakes, ponds, and vegetation. Mean annual air temperatures have been rising at an average rate of 0.4°C/10a over the past 60 years, while precipitation has increased only slightly (16 mm/10a). Borehole temperature monitoring at the depth of 15 m shows the permafrost warming rates of 0.01–0.21°C/10a in the Headwater Aera of the Yellow River. As a result of permafrost thaw, the amount of surface waters has declined while groundwater storage has increased. Due to permafrost degradation, the supra-permafrost water table lowers gradually, resulting in a reduction in areal extents of wetlands and lakes in the SAYR. We further renamed the concept of the burial depth of the ecologically-safe supra-permafrost water table, the minimum depth of the groundwater table for sustaining the normal growth of alpine grassland vegetation, for the SAYR to describe the relationship between the lowering permafrost table and succeeding alpine vegetation. Furthermore, we recommended more studies focusing on snow cover and carbon stock and emissions related to permafrost degradation under a warming climate. We also advised to timely establish the long-term monitoring networks for the rapidly changing mountain cryosphere, alpine ecology, alpine hydrology, eco-hydrology, cryo-hydrogeology, and carbon fluxes. Moreover, process-based models should be developed and improved to better simulate and predict the responses of alpine ecosystem changes to the interacting cryospheric and other environmental variables and their ecological and ecohydrological impacts in the SAYR and downstream Yellow River basins. This study can help better manage the ecological and hydrological environments in the Upper Yellow River that are sensitive to changes in the alpine climate and cryosphere.

show abstract

“…Particularly, in the 21st century, the climate wetting in the SRYR accelerated [41][42][43]. The average precipitation in 2001-2019 increased by 29.8 mm compared with that in 1961-2000 [39,44,45].…”

Section: Flood Disastermentioning

confidence: 99%

Diagnosis and Evolution Characteristics of Critical Water Security Problems in the Source Region of the Yellow River

Gao,

Liu,

Luan

et al. 2023

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

The source region of the Yellow River (SRYR) is continuously affected by climate change and human activities, and water security problems have long existed and are constantly changing, with the possibility of inducing a series of new risks. To diagnose the above problems and clarify their evolution features, based on the connotation of water security and its involved dimensions, this paper systematically reviews the relevant research results on water security in the SRYR, summarizes the water security problems and their evolution trend in the region from three aspects: water disasters, water ecology, and water supply security, and deeply analyzes the cascade effect of each water security problem. This paper provides a scientific basis for carrying out water disaster prevention and ecological restoration in the SRYR, which is conducive to optimizing the development and utilization of water resources in the context of adapting to climate change.

show abstract

The Multi-Scale Temporal Variability of Extreme Precipitation in the Source Region of the Yellow River

Cited by 12 publications

References 53 publications

Water Level Fluctuation under the Impact of Lake Regulation and Ecological Implication in Huayang Lakes, China

Water Level Fluctuation under the Impact of Lake Regulation and Ecological Implication in Huayang Lakes, China

Impacts of Permafrost Degradation on Hydrology and Vegetation in the Source Area of the Yellow River on Northeastern Qinghai-Tibet Plateau, Southwest China

Diagnosis and Evolution Characteristics of Critical Water Security Problems in the Source Region of the Yellow River

Contact Info

Product

Resources

About