Estimating the moisture regime in variably saturated arsenic contaminated alluvial sediments by using hydrus-1d with daily meteorological data
As a result of historical mining activities, some layers in the Ogosta Valley`s floodplain sediments are highly enriched in arsenic (As). Reductive release of iron (Fe) and As in the floodplain soil could be expected under reducing conditions, which would lead to an increase of the more toxic As sp...
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| Format: | Article |
| Language: | English |
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European Association of Geographers
2019-01-01
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| Series: | European Journal of Geography |
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| Online Access: | https://www.eurogeojournal.eu/index.php/egj/article/view/185 |
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| author | Dimitar ANTONOV Tsvetan KOTSEV Aleksey BENDEREV Nathalie VAN MEIR Petar GERGINOV Velimira STOYANOVA Emilia TCHERKEZOVA |
| author_facet | Dimitar ANTONOV Tsvetan KOTSEV Aleksey BENDEREV Nathalie VAN MEIR Petar GERGINOV Velimira STOYANOVA Emilia TCHERKEZOVA |
| author_sort | Dimitar ANTONOV |
| collection | DOAJ |
| description |
As a result of historical mining activities, some layers in the Ogosta Valley`s floodplain sediments are highly enriched in arsenic (As). Reductive release of iron (Fe) and As in the floodplain soil could be expected under reducing conditions, which would lead to an increase of the more toxic As species in the soil pore water. Therefore, it is important to understand whether the vadose zone in the Ogosta’s floodplain is a subject to water saturation during intensive rainfalls. The study provides a model based on the HYDRUS-1D code, along with the mathematical description of processes implemented into, especially those used to estimate the daily evapotranspiration rates and water flow from the soil surface to the groundwater level during ten-days scenarios including intensive rainfalls. The results from the simulations for April and July are compared in order to reveal the moisture regime of the vadose zone in the river floodplain of the Ogosta Valley
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| format | Article |
| id | doaj-art-02cfaecfeb974515af8bdac13ceeb807 |
| institution | DOAJ |
| issn | 1792-1341 2410-7433 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | European Association of Geographers |
| record_format | Article |
| series | European Journal of Geography |
| spelling | doaj-art-02cfaecfeb974515af8bdac13ceeb8072025-08-20T02:51:18ZengEuropean Association of GeographersEuropean Journal of Geography1792-13412410-74332019-01-01102Estimating the moisture regime in variably saturated arsenic contaminated alluvial sediments by using hydrus-1d with daily meteorological dataDimitar ANTONOV Tsvetan KOTSEV Aleksey BENDEREV Nathalie VAN MEIR Petar GERGINOVVelimira STOYANOVA Emilia TCHERKEZOVA As a result of historical mining activities, some layers in the Ogosta Valley`s floodplain sediments are highly enriched in arsenic (As). Reductive release of iron (Fe) and As in the floodplain soil could be expected under reducing conditions, which would lead to an increase of the more toxic As species in the soil pore water. Therefore, it is important to understand whether the vadose zone in the Ogosta’s floodplain is a subject to water saturation during intensive rainfalls. The study provides a model based on the HYDRUS-1D code, along with the mathematical description of processes implemented into, especially those used to estimate the daily evapotranspiration rates and water flow from the soil surface to the groundwater level during ten-days scenarios including intensive rainfalls. The results from the simulations for April and July are compared in order to reveal the moisture regime of the vadose zone in the river floodplain of the Ogosta Valley https://www.eurogeojournal.eu/index.php/egj/article/view/185Ogosta Valley, vadose zone, soil water saturation, numerical modelling |
| spellingShingle | Dimitar ANTONOV Tsvetan KOTSEV Aleksey BENDEREV Nathalie VAN MEIR Petar GERGINOV Velimira STOYANOVA Emilia TCHERKEZOVA Estimating the moisture regime in variably saturated arsenic contaminated alluvial sediments by using hydrus-1d with daily meteorological data European Journal of Geography Ogosta Valley, vadose zone, soil water saturation, numerical modelling |
| title | Estimating the moisture regime in variably saturated arsenic contaminated alluvial sediments by using hydrus-1d with daily meteorological data |
| title_full | Estimating the moisture regime in variably saturated arsenic contaminated alluvial sediments by using hydrus-1d with daily meteorological data |
| title_fullStr | Estimating the moisture regime in variably saturated arsenic contaminated alluvial sediments by using hydrus-1d with daily meteorological data |
| title_full_unstemmed | Estimating the moisture regime in variably saturated arsenic contaminated alluvial sediments by using hydrus-1d with daily meteorological data |
| title_short | Estimating the moisture regime in variably saturated arsenic contaminated alluvial sediments by using hydrus-1d with daily meteorological data |
| title_sort | estimating the moisture regime in variably saturated arsenic contaminated alluvial sediments by using hydrus 1d with daily meteorological data |
| topic | Ogosta Valley, vadose zone, soil water saturation, numerical modelling |
| url | https://www.eurogeojournal.eu/index.php/egj/article/view/185 |
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