Socio-ecological challenges of hydroelectric dams among ethnic minorities in northern Laos

Liquin, Paige; Ahmed, Saleh

doi:10.1016/j.envdev.2023.100864

Cited by 5 publications

(1 citation statement)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Landslides are a common natural phenomenon in high mountainous areas [1][2][3][4]. Due to the gravitational effects, configurations, and material properties, such natural events commonly generate large kinetic energy and seriously impact building and human lives [5][6][7][8]. However, our understanding of the characteristics and mobility of such gravitational-granular flows arising from these landslides, especially unsaturated soil conditions, is still very limited due to the difficulty in performing and measuring large experiments.…”

Section: Introductionmentioning

confidence: 99%

Energy evolution of gravitational-granular flows

Anh,

Manh,

Thao

et al. 2024

JSTCE

View full text Add to dashboard Cite

The catastrophe of natural disasters such as landslides, is a prevalent phenomenon in natural terrain conditions in high mountainous areas; however, the mobility of such landslides has not yet well understood due to the discrete nature of material and the coming to play of water. In this paper, we numerically study the mobility of an unsaturated gravitational-granular flow, occurring on a slope-break system that contains two regions: inclined-upstream and horizontal-downstream areas, by using three-dimensional discrete element simulations. A sliding volume composed of spherical grains collapses on the first region, then plunges and deposits on the second one. The upstream-plunging length and the cohesive stress exerted on grains affect differently on the energy evolution not only in the whole process but also in different regions and directions depending on the inclination angle. These findings provide a deep understanding of the mechanism and mobility of landslides, leading to good predictions about the potential impacts of the catastrophic landslides on buildings and human lives.

show abstract

Section: Introductionmentioning

confidence: 99%

Energy evolution of gravitational-granular flows

Anh,

Manh,

Thao

et al. 2024

JSTCE

View full text Add to dashboard Cite

show abstract

Disregard of aquatic shrews in the Environmental Impact Assessment reports regarding hydropower dams in the Nepal Himalayas

Dahal,

Neupane,

Baral

et al. 2024

River Research & Apps

View full text Add to dashboard Cite

The rate of hydropower dam construction on rivers is increasing in emerging economies in South Asia, to achieve economic development goals. These large infrastructure projects are likely to have many negative consequences on freshwater species but have not yet received much consideration. Among freshwater small mammalian species, water shrews are seriously impacted by these large structures. This paper aims to determine if water shrews have been considered during the Environmental Impact Assessment (EIA) of these hydro dam project sites, as well as present the sightings of the water shrews from Nepalese rivers with hydropower potential. We reviewed 44 EIA reports of such projects in Nepal using a set of four criteria and 15 questions to analyze the methods of impact assessment for mammals and the reports on the presence of water shrews in each built area. The study found that the number of mammal species reported during the EIA varied from five to 55 species but no relationships between the hydropower structure's size and any water shrew species were considered in the studies. In almost all EIA reports, the term aquatic ecosystem was prioritized over the term aquatic small mammals, and the latter was not considered in the assessment. The major reason for not considering these species is probably due to the lack of robust methods to capture small mammals such as shrews, or due to survey methods focused only on terrestrial mammals. The Aquatic Animal Protection Act was fully reviewed and assured to be followed in a majority of the reports, yet the monitoring parameters and indicators were not available for aquatic small mammals. Ignoring the presence of these mammals while constructing hydropower plants is a serious threat to their persistence. We also reported the Himalayan water shrew in the Barun River and the elegant water shrew in the Upper Tamakoshi River of Nepal. Therefore, a better understanding of these species among hydropower developers, and all concerned agencies, is essential.

show abstract

Unveiling Anthropogenic Environmental Burdens Impacting Ecosystem Services in the Himalayas

Singh,

Yadav

2024

Advances in Asian Human-Environmental Research

View full text Add to dashboard Cite

Socio-ecological challenges of hydroelectric dams among ethnic minorities in northern Laos

Cited by 5 publications

References 38 publications

Energy evolution of gravitational-granular flows

Energy evolution of gravitational-granular flows

Disregard of aquatic shrews in the Environmental Impact Assessment reports regarding hydropower dams in the Nepal Himalayas

Unveiling Anthropogenic Environmental Burdens Impacting Ecosystem Services in the Himalayas

Contact Info

Product

Resources

About