Hydro‐Geochemical and Sr Isotope Characteristics of the Yalong River Basin, Eastern Tibetan Plateau: Implications for Chemical Weathering and Controlling Factors

2019 ◽  
Vol 20 (3) ◽  
pp. 1221-1239 ◽  
Author(s):  
Xuan Zhang ◽  
Zhifang Xu ◽  
Wenjing Liu ◽  
Seulgi Moon ◽  
Tong Zhao ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
River Basin ◽  
Chemical Weathering ◽  
Controlling Factors ◽  
Eastern Tibetan Plateau ◽  
Sr Isotope ◽  
Yalong River ◽  
Yalong River Basin

Chemical weathering processes in the Yalong River draining the eastern Tibetan Plateau, China

2014 ◽  
Vol 88 ◽  
pp. 74-84 ◽  
Author(s):  
Si-Liang Li ◽  
Benjamin Chetelat ◽  
Fujun Yue ◽  
Zhiqi Zhao ◽  
Cong-Qiang Liu
Keyword(s):  
Tibetan Plateau ◽  
Chemical Weathering ◽  
Eastern Tibetan Plateau ◽  
Weathering Processes ◽  
Yalong River

Distribution features of landslides in the Yalong River Basin, Southwest China

2021 ◽  
Vol 80 (7) ◽  
Author(s):  
Gang Jin ◽  
Yunsheng Wang ◽  
Wenbin Wu ◽  
Tai Guo ◽  
Jialu Xu
Keyword(s):  
River Basin ◽  
Southwest China ◽  
Distribution Features ◽  
Yalong River ◽  
Yalong River Basin

scholarly journals Assessing the Impact of Reservoir Parameters on Runoff in the Yalong River Basin using the SWAT Model

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 643 ◽  
Author(s):  
Xuan Liu ◽  
Mingxiang Yang ◽  
Xianyong Meng ◽  
Fan Wen ◽  
Guangdong Sun
Keyword(s):  
River Basin ◽  
Flood Control ◽  
Hydrological Cycle ◽  
Swat Model ◽  
Relative Location ◽  
Reservoir Capacity ◽  
Joint Operation ◽  
The Impact ◽  
Yalong River ◽  
Yalong River Basin

The construction and operation of cascade reservoirs has changed the natural hydrological cycle in the Yalong River Basin, and reduced the accuracy of hydrological forecasting. The impact of cascade reservoir operation on the runoff of the Yalong River Basin is assessed, providing a theoretical reference for the construction and joint operation of reservoirs. In this paper, eight scenarios were set up, by changing the reservoir capacity, operating location, and relative location in the case of two reservoirs. The aim of this study is to explore the impact of the capacity and location of a single reservoir on runoff processes, and the effect of the relative location in the case of joint operation of reservoirs. The results show that: (1) the reservoir has a delay and reduction effect on the flood during the flood season, and has a replenishment effect on the runoff during the dry season; (2) the impact of the reservoir on runoff processes and changes in runoff distribution during the year increases with the reservoir capacity; (3) the mitigation of flooding is more obvious at the river basin outlet control station when the reservoir is further downstream; (4) an arrangement with the smaller reservoir located upstream and the larger reservoir located downstream can maximize the benefits of the reservoirs in flood control.

Late Quaternary climatic control on erosion and weathering in the eastern Tibetan Plateau and the Mekong Basin

2005 ◽  
Vol 63 (3) ◽  
pp. 316-328 ◽  
Author(s):  
Zhifei Liu ◽  
Christophe Colin ◽  
Alain Trentesaux ◽  
Giuseppe Siani ◽  
Norbert Frank ◽  
...  
Keyword(s):  
Grain Size ◽  
Tibetan Plateau ◽  
Chemical Weathering ◽  
River Sediments ◽  
River Estuary ◽  
Mekong River ◽  
Sediment Discharge ◽  
Eastern Tibetan Plateau ◽  
Mekong Basin ◽  
Physical Erosion

High-resolution siliciclastic grain size and bulk mineralogy combined with clay mineralogy, rubidium, strontium, and neodymium isotopes of Core MD01-2393 collected off the Mekong River estuary in the southwestern South China Sea reveals a monsoon-controlled chemical weathering and physical erosion history during the last 190,000 yr in the eastern Tibetan Plateau and the Mekong Basin. The ranges of isotopic composition are limited throughout sedimentary records:87Sr/86Sr = 0.7206–0.7240 andεNd(0) = −11.1 to −12.1. These values match well to those of Mekong River sediments and they are considered to reflect this source region. Smectites/(illite + chlorite) and smectites/kaolinite ratios are used as indices of chemical weathering rates, whereas the bulk kaolinite/quartz ratio is used as an index of physical erosion rates in the eastern Tibetan Plateau and the Mekong Basin. Furthermore, the 2.5–6.5 μm/15–55 μm siliciclastic grain size population ratio represents the intensity of sediment discharge of the Mekong River and in turn, the East Asian summer monsoon intensity. Strengthened chemical weathering corresponds to increased sediment discharge and weakened physical erosion during interglacial periods. In contrast, weakened chemical weathering associated with reduced sediment discharge and intensified physical erosion during glacial periods. Such strong glacial–interglacial correlations between chemical weathering/erosion and sediment discharge imply the monsoon-controlled weathering and erosion.

scholarly journals Cumulative Environmental Effects of Hydropower Stations Based on the Water Footprint Method—Yalong River Basin, China

2019 ◽  
Vol 11 (21) ◽  
pp. 5958 ◽  
Author(s):  
Yu ◽  
Jia ◽  
Wu ◽  
Wu ◽  
Xu ◽  
...  
Keyword(s):  
River Basin ◽  
Environmental Effects ◽  
Water Scarcity ◽  
Water Footprint ◽  
Environmental Flow ◽  
Blue Water ◽  
Development And Utilization ◽  
Hydropower Stations ◽  
Yalong River ◽  
Yalong River Basin

The construction of hydropower stations is not without controversy as they have a certain degree of impact on the ecological environment. Moreover, the water footprint and its cumulative effects on the environment (The relationship between the degree of hydropower development and utilization in the basin and the environment) of the development and utilization of cascade hydropower stations are incompletely understood. In this paper, we calculate the evaporated water footprint (EWF, water evaporated from reservoirs) and the product water footprint of hydropower stations (PWF, water consumption per unit of electricity production), and the blue water scarcity (BWS, the ratio of the total blue water footprint to blue water availability) based on data from 19 selected hydropower stations in the Yalong River Basin, China. Results show that: (a) the EWFs in established, ongoing, proposed, and planning phases of 19 hydropower stations are 243, 123, 59, and 42 Mm3, respectively; (b) the PWF of 19 hydropower stations varies between 0.01 and 4.49 m3GJ−1, and the average PWF is 1.20 m3GJ−1. These values are quite small when compared with hydropower stations in other basins in the world, and the difference in PWF among different hydropower stations is mainly derived from energy efficiency factor; (c) all the BWS in the Yalong River Basin are below 100% (low blue water scarcity), in which the total blue water footprint is less than 20% of the natural flow, and environmental flow requirements are met. From the perspective of the water footprint method, the cumulative environmental effects of hydropower development and utilization in the Yalong River Basin will not affect the local environmental flow requirements.

Integrating weather and climate predictions for seamless hydrologic ensemble forecasting: A case study in the Yalong River basin

2017 ◽  
Vol 547 ◽  
pp. 196-207 ◽  
Author(s):  
Aizhong Ye ◽  
Xiaoxue Deng ◽  
Feng Ma ◽  
Qingyun Duan ◽  
Zheng Zhou ◽  
...  
Keyword(s):  
River Basin ◽  
Ensemble Forecasting ◽  
Weather And Climate ◽  
Yalong River ◽  
Yalong River Basin
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