The water cycle of small catchments impacted with tailings mudflows: A study in the Ferro-Carvão watershed after the breakup of B1 dam in Brumadinho DOI Creative Commons
Polyana Pereira, Luís Filipe Sanches Fernandes, Renato Farias do Valle

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 949, С. 174971 - 174971

Опубликована: Июль 26, 2024

The B1 tailings dam of Córrego do Feijão iron-ore mine owned by Vale, S.A. company collapsed in 25 January 2019 releasing to the Ferro-Carvão stream watershed (32.6 km2) as much 11.7 Mm3 waste. A major share (8.9 Mm3) has been deposited along channel and margins forming a 2.7 km2 patch. main purpose this study was question whether deposit impacted local water cycle how. Using Soil Water Assessment Tool (SWAT) hydrologic model, balance components 36 response units (HRU) were calculated for pre- (S1) post- (S2) rupture scenarios represented appropriate soil, land use cover. results revealed an increase evapotranspiration from S1 S2, related sudden removal vegetation valley replacement with blanket mud, which raised exposure Earth's surface sunlight hence soil evaporation. For 11 HRU (10.3 located around deposit, decrease lateral flow observed, accompanied percolation slight groundwater flow. In case, changes observed between S2 reflected barrier effect imposed flows tailings, shifted towards vertical direction (percolation). Thus, followed easier route until reaching shallow aquifer being converted into As per modelling outcomes, impacts are relevant because they affected 1/3 watershed, claim complete tailings.

Язык: Английский

Integrating analyzing water retention and vulnerability on the Qinghai-Tibet Plateau for regional water security and sustainable development DOI Creative Commons
Xianglong Gao,

Shisi Hu,

Xiaohong Deng

и другие.

Journal of Hydrology Regional Studies, Год журнала: 2025, Номер 58, С. 102299 - 102299

Опубликована: Март 4, 2025

Язык: Английский

Процитировано

0
The water cycle of small catchments impacted with tailings mudflows: A study in the Ferro-Carvão watershed after the breakup of B1 dam in Brumadinho DOI Creative Commons
Polyana Pereira, Luís Filipe Sanches Fernandes, Renato Farias do Valle

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 949, С. 174971 - 174971

Опубликована: Июль 26, 2024

The B1 tailings dam of Córrego do Feijão iron-ore mine owned by Vale, S.A. company collapsed in 25 January 2019 releasing to the Ferro-Carvão stream watershed (32.6 km2) as much 11.7 Mm3 waste. A major share (8.9 Mm3) has been deposited along channel and margins forming a 2.7 km2 patch. main purpose this study was question whether deposit impacted local water cycle how. Using Soil Water Assessment Tool (SWAT) hydrologic model, balance components 36 response units (HRU) were calculated for pre- (S1) post- (S2) rupture scenarios represented appropriate soil, land use cover. results revealed an increase evapotranspiration from S1 S2, related sudden removal vegetation valley replacement with blanket mud, which raised exposure Earth's surface sunlight hence soil evaporation. For 11 HRU (10.3 located around deposit, decrease lateral flow observed, accompanied percolation slight groundwater flow. In case, changes observed between S2 reflected barrier effect imposed flows tailings, shifted towards vertical direction (percolation). Thus, followed easier route until reaching shallow aquifer being converted into As per modelling outcomes, impacts are relevant because they affected 1/3 watershed, claim complete tailings.

Язык: Английский

Процитировано

0