Assessment of the potential of Vachellia seyal and Prosopis chilensis for the reclamation of saline soil lands in the peanut basin production of Senegal
Soil properties and microbial activities are indicators that shape plant communities and evolution. We aimed to determine the interdependency between trees, belowground herbaceous plants, soil characteristics, and arbuscular mycorrhizal communities. Vachellia seyal and Prosopis chilensis and their a...
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Frontiers Media S.A.
2022-12-01
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Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2022.1001895/full |
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author | Mansour Thiao Godar Sene Moustapha Ndiaye El Hadji Samba Ndao Sylla |
author_facet | Mansour Thiao Godar Sene Moustapha Ndiaye El Hadji Samba Ndao Sylla |
author_sort | Mansour Thiao |
collection | DOAJ |
description | Soil properties and microbial activities are indicators that shape plant communities and evolution. We aimed to determine the interdependency between trees, belowground herbaceous plants, soil characteristics, and arbuscular mycorrhizal communities. Vachellia seyal and Prosopis chilensis and their associated herb layers were targeted. Soils sampled beneath the trees and outside the canopies were subjected to physicochemical and microbial characterization. Randomly collected living roots of trees and dominant herbs were checked for arbuscular mycorrhizal colonization. A tree seedlings nursery was conducted using black bags filled with the following substrates: natural soil 100%, soil mixed with leaf tree plants (LTPs) as organic matter at 10%, soil mixed with LTP at 20%, soil mixed with LTP at 30%, and soil mixed with LTP at 50%. As a result, the presence of trees improves both herb richness and diversity. Soil mycorrhizal inoculum potentials are higher beneath V. seyal than P. chilensis and decreased significantly with increasing distance from trees. The soil MIP decreased with increasing organic matter content for both tree species but was more pronounced for P. chilensis. Soil salinity is lower beneath V. seyal and higher under P. chilensis and outside the canopies. Soil fertility parameters such as carbon, nitrogen, and available phosphorus are higher beneath the trees and then decreased as the distance to the trees increases. We conclude that microbial communities, soil properties, and herb richness and diversity increased beneath the trees but decreased with increasing distance from the trees. This effect is tree species-dependent as P. chilensis increased soil salinity and decreased the belowground density of herbs. |
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spelling | doaj.art-1641af789eb74df4ae3e41d81a7caa662022-12-22T03:49:35ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-12-011310.3389/fpls.2022.10018951001895Assessment of the potential of Vachellia seyal and Prosopis chilensis for the reclamation of saline soil lands in the peanut basin production of SenegalMansour Thiao0Godar Sene1Moustapha Ndiaye2El Hadji Samba Ndao Sylla3Laboratoire Commun de Microbiologie (LCM) Institut de Recherche pour le Developpement/Institut Sénégalais de Recherche Agricole/Université Cheikh Anta Diop (IRD/ISRA/UCAD), Département de Biologie végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop de Dakar, Dakar, SenegalLaboratoire Commun de Microbiologie (LCM) Institut de Recherche pour le Developpement/Institut Sénégalais de Recherche Agricole/Université Cheikh Anta Diop (IRD/ISRA/UCAD), Département de Biologie végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop de Dakar, Dakar, SenegalLaboratoire de Botanique, Département de Biologie végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop de Dakar, Dakar, SenegalLaboratoire Commun de Microbiologie (LCM) Institut de Recherche pour le Developpement/Institut Sénégalais de Recherche Agricole/Université Cheikh Anta Diop (IRD/ISRA/UCAD), Département de Biologie végétale, Faculté des Sciences et Techniques, Université Cheikh Anta Diop de Dakar, Dakar, SenegalSoil properties and microbial activities are indicators that shape plant communities and evolution. We aimed to determine the interdependency between trees, belowground herbaceous plants, soil characteristics, and arbuscular mycorrhizal communities. Vachellia seyal and Prosopis chilensis and their associated herb layers were targeted. Soils sampled beneath the trees and outside the canopies were subjected to physicochemical and microbial characterization. Randomly collected living roots of trees and dominant herbs were checked for arbuscular mycorrhizal colonization. A tree seedlings nursery was conducted using black bags filled with the following substrates: natural soil 100%, soil mixed with leaf tree plants (LTPs) as organic matter at 10%, soil mixed with LTP at 20%, soil mixed with LTP at 30%, and soil mixed with LTP at 50%. As a result, the presence of trees improves both herb richness and diversity. Soil mycorrhizal inoculum potentials are higher beneath V. seyal than P. chilensis and decreased significantly with increasing distance from trees. The soil MIP decreased with increasing organic matter content for both tree species but was more pronounced for P. chilensis. Soil salinity is lower beneath V. seyal and higher under P. chilensis and outside the canopies. Soil fertility parameters such as carbon, nitrogen, and available phosphorus are higher beneath the trees and then decreased as the distance to the trees increases. We conclude that microbial communities, soil properties, and herb richness and diversity increased beneath the trees but decreased with increasing distance from the trees. This effect is tree species-dependent as P. chilensis increased soil salinity and decreased the belowground density of herbs.https://www.frontiersin.org/articles/10.3389/fpls.2022.1001895/fullVachellia seyalProsopis chilensisherbaceousarbuscular mycorrhizal fungisalinitysoil fertility |
spellingShingle | Mansour Thiao Godar Sene Moustapha Ndiaye El Hadji Samba Ndao Sylla Assessment of the potential of Vachellia seyal and Prosopis chilensis for the reclamation of saline soil lands in the peanut basin production of Senegal Frontiers in Plant Science Vachellia seyal Prosopis chilensis herbaceous arbuscular mycorrhizal fungi salinity soil fertility |
title | Assessment of the potential of Vachellia seyal and Prosopis chilensis for the reclamation of saline soil lands in the peanut basin production of Senegal |
title_full | Assessment of the potential of Vachellia seyal and Prosopis chilensis for the reclamation of saline soil lands in the peanut basin production of Senegal |
title_fullStr | Assessment of the potential of Vachellia seyal and Prosopis chilensis for the reclamation of saline soil lands in the peanut basin production of Senegal |
title_full_unstemmed | Assessment of the potential of Vachellia seyal and Prosopis chilensis for the reclamation of saline soil lands in the peanut basin production of Senegal |
title_short | Assessment of the potential of Vachellia seyal and Prosopis chilensis for the reclamation of saline soil lands in the peanut basin production of Senegal |
title_sort | assessment of the potential of vachellia seyal and prosopis chilensis for the reclamation of saline soil lands in the peanut basin production of senegal |
topic | Vachellia seyal Prosopis chilensis herbaceous arbuscular mycorrhizal fungi salinity soil fertility |
url | https://www.frontiersin.org/articles/10.3389/fpls.2022.1001895/full |
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