A Collaborative Framework for Hydropower Development and Sustainable Livelihood of Farmers in the Lancang-Mekong River Basin: A Review with the Perspective of Energy-Water-Food Nexus

Zhong, Shuai; Zhu, Yidong; Zhao, Jianan; Shen, Lei

doi:10.3390/w14030499

Cited by 6 publications

(6 citation statements)

References 52 publications

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“…It originates on the Tibetan Plateau, known as the water tower of Asia, a region that is significantly affected by climate change [43][44][45][46][47]. It is the mother river of Southeast Asia, known as the "Danube of the East", and flows through five countries in Southeast Asia: Myanmar, Laos, Cambodia, Thailand, and Vietnam [48]. The LMRB crosses cold, temperate, and tropical zones from north to south, making the climate complex and variable, and is also a region sensitive to climate change [49,50].…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal Projections of Precipitation in the Lancang–Mekong River Basin Based on CMIP6 Models

Sun,

Liu,

Zhang

et al. 2023

Remote Sensing

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The Lancang–Mekong River Basin (LMRB) is the largest international river in Southeast Asia, supporting a population of about 70 million people. Precipitation is the main source of water resources in the basin, with significant impacts on ecology, production, and livelihoods in the basin. In this study, future precipitation was projected using the Coupled Model Intercomparison Project Phase 6 (CMIP6) climate models. The initial bias of each model was corrected using the daily bias-correction (DBC) method, and then the models were ensembled using the Bayesian model-averaging (BMA) method. The evaluation, based on metrics such as climatology bias, root-mean-square error (RMSE), mean absolute error (MAE), and correlation coefficient (COR), showed that the ensemble precipitation performs better than the individual models. Precipitation under four future Shared Socioeconomic Pathway scenarios (SSP126, SSP245, SSP370, SSP585) displayed an increasing trend throughout the LMRB. The anomalies in annual precipitation in 2061–2090 under each scenario are 136 mm, 142 mm, 114 mm, and 227 mm, in that order. Precipitation in spring and winter shows a trend of increasing in the northern LMRB and decreasing in the southern LMRB, and precipitation in summer and autumn shows a significant trend of increasing in almost the whole basin (significance level 0.05). Spring precipitation in the Mekong Delta decreases in all scenarios. The ratio of wet-season precipitation to dry-season precipitation shows an increasing trend for all scenarios, indicating that the difference between wet-season precipitation and dry-season precipitation will increase in the future. For daily precipitation, the Lancang River Basin (LRB) is dominated by a 3–5% increase in the number of days with 5–10 mm/d of precipitation and the Mekong River Basin (MRB) by a 3–5% increase in the number of days with 10–20 mm/d of precipitation under four SSP scenarios in 2061–2090. There are important changes in the spatial distribution of future precipitation, with the 2500 mm isohyet expanding outwards in a circular pattern and the center of the 1500 mm isohyet moving westwards; i.e., areas with annual precipitation exceeding 2500 mm and 1500 mm will expand. For dry-season precipitation, the 500 mm isohyet shrinks, mainly in a circular pattern towards the center, while the 300 mm isohyet moves mainly towards the east, indicating that areas of dry-season precipitation below 500 mm and 300 mm will expand. In the future, the LMRB will generally become wetter in the wet season and drier in the dry season.

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Section: Introductionmentioning

confidence: 99%

Spatiotemporal Projections of Precipitation in the Lancang–Mekong River Basin Based on CMIP6 Models

Sun,

Liu,

Zhang

et al. 2023

Remote Sensing

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“…Следовательно, управление водными ресурсами позволило бы бороться с наводнениями путем накопления воды в водохранилищах ГЭС в сезон дождей и смягчать последствия засухи через сброс воды в сухой сезон. По китайским оценкам, регулирование стока через систему ГЭС позволило бы увеличить площадь посевов за счет районов, ранее подверженных затоплению, а также увеличить урожайность орошаемых культур на 49% и уменьшить их потери на 30% во время сухого сезона 29 . Развитие гидроэнергетики также может стимулировать процесс электрификации сельскохозяйственных районов, что предполагает более широкое использование агротехники, применение современных влагосберегающих технологий.…”

Section: сотрудничество стран сбм в сфере регулирования речного стокаunclassified

Development of Cross-Border River Cooperation in the Greater Mekong Subregion

BUTKO¹

2022

SEAPD

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Water problem in international relations is one of the most discussed since the second half of the last century. The greatest contradictions in this area are expected in the Greater Mekong subregion. As a result, the expert community even expressed an opinion about a new threat to international security in Southeast Asia. However, the basin countries are strengthening interaction with each other. The article contains an analysis of the state and prospects for the development of interstate cooperation on the Mekong River. The article notes a common interest in the development of hydropower and joint management of water resources, which stimulates integration processes and reduces tensions in the subregion. As a result, it is concluded that countries will cooperate with each other rather than conflict.

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“…However, several empirical studies have provided evidence that the hydropower infrastructure of the basin has spurred significant economic growth [8,9] but also caused damage to the environment [10,11]. This dual nature of dam construction boosts energy production while also disrupting ecosystems [12,13] and reducing carbon storage.…”

Section: Introductionmentioning

confidence: 99%

Carbon Emissions and Vegetation Dynamics: Assessing the Spatiotemporal Environmental Impacts of Hydropower Dams in the Lancang River Basin

Liu,

Wang,

et al. 2024

Forests

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Recent decades in the Lancang River Basin have witnessed extensive construction of hydropower dams, profoundly impacting the local environment. Utilizing high-precision satellite data, we conducted a comprehensive analysis of vegetation cover and carbon emissions, integrating data-driven time series and spatial analysis models to capture both temporal and spatial dynamics. Our findings reveal that hydropower dam construction in the Lancang River Basin has significantly promoted vegetation restoration and growth, concurrently facilitating a reduction in regional carbon emissions. Employing deep learning models for time-series prediction, we observed a substantial increase in the sum of the local normalized difference vegetation index (NDVI) post-construction, with an average rise of from 16.15% to a maximum of 20.12% during the pivotal hydropower dams’ operational phase. Between 2001 and 2020, the construction of hydropower dams in the basin corresponded to notable changes in ecological and carbon metrics. Specifically, vegetation cover expansion intensity (VCEI) reversed from a negative mean of −0.009 to a positive mean of 0.008. Additionally, the carbon emission intensity (CEI) around these dams drastically reduced, shifting from an average of 0.877 to 0.052. Importantly, the Global Moran’s I for VCEI significantly increased from 0.288 pre-2016 to 0.679 post-2015, reflecting a stronger spatial autocorrelation in vegetation patterns. Accordingly, these findings illustrate the complex interplay between hydropower dams and environmental outcomes, underscoring the critical role of pivotal hydropower dam construction in ecological improvement. The research results have improved and complemented those of previous studies on the environmental impact of hydraulic engineering, providing valuable insights for the construction management and policy formulation of hydropower dams in other similar river basins around the world.

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A Collaborative Framework for Hydropower Development and Sustainable Livelihood of Farmers in the Lancang-Mekong River Basin: A Review with the Perspective of Energy-Water-Food Nexus

Cited by 6 publications

References 52 publications

Spatiotemporal Projections of Precipitation in the Lancang–Mekong River Basin Based on CMIP6 Models

Spatiotemporal Projections of Precipitation in the Lancang–Mekong River Basin Based on CMIP6 Models

Development of Cross-Border River Cooperation in the Greater Mekong Subregion

Carbon Emissions and Vegetation Dynamics: Assessing the Spatiotemporal Environmental Impacts of Hydropower Dams in the Lancang River Basin

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