Idioma:

Caesium-137 re-sampling approach and excess Lead-210 sediment dating to assess the impacts of climate change and agricultural practices on soil erosion and sedimentation in Northwest Morocco

Moustakim, Meryem ; Benmansour, Moncef ; Nouira, Asmae ; Benkdad, Azouz ; Damnati, Brahim

Environmental earth sciences, 2022-05, Vol.81 (10), Article 278 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

Texto completo disponível

Citações Citado por

Enviar para

Título:
Caesium-137 re-sampling approach and excess Lead-210 sediment dating to assess the impacts of climate change and agricultural practices on soil erosion and sedimentation in Northwest Morocco
Autor: Moustakim, Meryem ; Benmansour, Moncef ; Nouira, Asmae ; Benkdad, Azouz ; Damnati, Brahim
Assuntos: Agricultural land ; Agricultural management ; Agricultural practices ; Agricultural watersheds ; Agriculture ; Biogeosciences ; Caesium ; Caesium 137 ; Cesium ; Cesium 137 ; Cesium isotopes ; Cesium radioisotopes ; Climate change ; Crop rotation ; Downstream ; Downstream effects ; Earth and Environmental Science ; Earth Sciences ; Environmental Science and Engineering ; Erosion processes ; Erosion rates ; Fallout ; Fields ; Geochemistry ; Geology ; Hydrology/Water Resources ; Land use ; Natural vegetation ; Original Article ; Radioisotopes ; Reservoirs ; Sampling ; Sedimentation ; Sedimentation & deposition ; Sedimentation rates ; Soil erosion ; Statistical analysis ; Temporal variations ; Terrestrial Pollution ; Vegetation ; Water reservoirs
É parte de: Environmental earth sciences, 2022-05, Vol.81 (10), Article 278
Descrição: This study aims to evaluate changes in soil erosion and sedimentation processes in the Northwest region of Morocco based on the use of fallout radionuclide techniques. The Caesium-137 technique was combined with the re-sampling approach to assess soil erosion rates associated with two periods (1954–2000/2001 and 1954–2017/2018) in four agricultural fields located in El Hachef and Raouz watersheds, and excess Lead-210 was used to estimate the temporal variation of the sedimentation rate in a water reservoir named “9th of April 1947”, located in this region, downstream from El Hachef watershed. The results show that the net soil erosion rates had decreased in the two study fields of El Hachef watershed, from 26.3 to 20.2 t ha −1 year −1 and from 50.8 to 42.7 t ha −1 year −1 , respectively, and in one field of Raouz watershed, from 19.4 to 16.1 t ha −1 year −1 , due to some beneficial changes in land use consisting of more frequent fallow periods combined with natural vegetation and crop rotation practice. However, in one of the two fields of the Raouz watershed, where agricultural practices were not changed, the net soil erosion rate increased from 4.5 to 5.7 t ha −1 year −1 between the two periods, which could be due to climate change impact on soil erosion in this area. Taking into account the relative uncertainties on the 137 Cs inventories and the period elapsed between the two sampling campaigns, the results obtained by the re-sampling 137 Cs method can be considered statistically significant in particular for fields with high changes in soil erosion rates. The results also indicate an increase of the sedimentation from 18.9 t ha −1 year −1 in 1950 to 79.8 t ha −1 year −1 in 2015 in the downstream water reservoir, which can be attributed to the combined impacts of both climate change and agriculture practices in the region.
Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma: Inglês

Voltar para lista de resultados

Anterior Resultado 8 Avançar Ir para próxima página

Realização: Logos de Redes Sociais:

Caesium-137 re-sampling approach and excess Lead-210 sediment dating to assess the impacts of climate change and agricultural practices on soil erosion and sedimentation in Northwest Morocco

Moustakim, Meryem ; Benmansour, Moncef ; Nouira, Asmae ; Benkdad, Azouz ; Damnati, Brahim

Berlin/Heidelberg: Springer Berlin Heidelberg

Buscando em bases de dados remotas. Favor aguardar.