Long-term alterations of flow regimes of the Mekong River and adaptation strategies for the Vietnamese Mekong Delta

Journal of Hydrology Regional Studies, Journal Year: 2020, Volume and Issue: 32, P. 100742 - 100742

Published: Oct. 17, 2020

The Mekong basin, where climate change and anthropogenic interventions (e.g., dams, sand mining, sluice gates) have intensified in the recent decades affecting pristine flow regime salinity intrusion. This paper aims at quantifying alterations entire from 1980 to 2015 linking with controlling drivers of alterations. In this regard, various indicators, analytical methods, a semi two-dimensional hydrodynamic advection-dispersion model were used. high-dam development period (2009–2015) are more pronounced than low-dam (1993–2008), compared no-dam (1980–1992), based on most indicators analyzed. all existing dams large reservoir capacity seemed cumulatively reduced flood pulses frequency increased low-flow discharge along through operations, exceeding effect. years water levels season Vietnamese Delta (VMD) decreased, possibly because riverbed incision caused by sediment supply mining. together number gates constructed intrusion VMD which may be partly early emergency release upstream dams.

Language: Английский

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Predicted trends of soil erosion and sediment yield from future land use and climate change scenarios in the Lancang–Mekong River by using the modified RUSLE model

International Soil and Water Conservation Research, Journal Year: 2020, Volume and Issue: 8(3), P. 213 - 227

Published: July 9, 2020

Soil erosion and sediments in the Lancang-Mekong River Basin as a result of climate change changes land use pose threat to existence riparian people, biodiversity ecosystems. This study seeks assess annual soil terms spatial distribution trends sediment yield with future scenarios 2030 2040 through modified RUSLE model. Future lands were simulated by using MLP artificial neural network Markov chain analysis. The was examined Max Planck Institute model, which showed corrected bias downscaled grid size under Representative Concentration Pathways (RCPs). indicated that forest areas converted mostly agricultural urban areas. In future, average rainfall all RCP is higher than from historical period. R C factors changed constantly, thereby affecting rate yield. maximum estimated at approximately 21,000 21,725 t/km2/y RCP8.5 both years. Meanwhile, results much when compared data around 66.3% 71.2%, respectively. Thailand's plateau, some parts Cambodia Laos PDR Mekong Delta are vulnerable increase Measures address these issues need be planned prepare mitigate possible effects, especially loss storage capacity dams.

Language: Английский

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Mapping global research on sustainability of megaproject management: A scientometric review

Journal of Cleaner Production, Journal Year: 2020, Volume and Issue: 259, P. 120831 - 120831

Published: March 4, 2020

Language: Английский

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Future projections of flood dynamics in the Vietnamese Mekong Delta

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 742, P. 140596 - 140596

Published: June 29, 2020

Language: Английский

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Balancing Hydropower Development and Ecological Impacts in the Mekong: Tradeoffs for Sambor Mega Dam

Journal of Water Resources Planning and Management, Journal Year: 2018, Volume and Issue: 145(2)

Published: Dec. 7, 2018

AbstractHome to one of the world’s most biodiverse and productive freshwater fisheries, Mekong River basin provides food economic security some 60 million people. The extensive hydropowe...

Language: Английский

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