Fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert
The distribution of plant communities in hot desert ecosystems is discontinuous and resembles the pattern of heterogeneous resource patches, known as “fertility islands”. Understanding the key factors that allow plants to establish in these conditions, as well as their associated microbial diversity, is crucial to the comprehension and preservation of these ecosystems. Saudi Arabia in the Arabian Peninsula, is one of the driest regions in the world, with a very low water regime and low soil nutrient contents. The establishment of ecosystems in these arid desert conditions is therefore subject to numerous constraints. Understanding the biotic and abiotic factors linked to the formation of fertility islands, from the perspective of soil composition and its associated microbiome, both in the soil and in the roots of associated plant community, is therefore a fundamental issue for the preservation of these ecosystems. In this study, we analyzed the soil composition between a fertility island and bare soil. The proportions of micro- and macro-elements important for plant nutrition, namely magnesium, phosphorus, potassium and iron were higher in the fertility island. We also observed that soil bacterial and fungal diversity increased in the fertility island. Key taxa such as Rhizobia and Glomeraceae which play important roles in ecosystem functioning were identified in both the fertility island soil and in the roots of the established plant community. These results confirm that plant establishment is linked to soil conditions, in line with the fertility island hypothesis, and that the microbial community in the fertility island differs both in diversity and in composition from that of the bare soil. Fertility islands soils and the roots of established plant community harbor a microbiome potentially crucial to ecosystem functioning, and are of major interest for conservation and agronomy programs.
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Subjects: | P35 - Fertilité du sol, F40 - Écologie végétale, biodiversité, nutrition des plantes, fertilité du sol, propriété physicochimique du sol, pédogénèse, régime hydrique du sol, http://aims.fao.org/aos/agrovoc/c_33949, http://aims.fao.org/aos/agrovoc/c_16379, http://aims.fao.org/aos/agrovoc/c_7170, http://aims.fao.org/aos/agrovoc/c_7182, http://aims.fao.org/aos/agrovoc/c_7173, http://aims.fao.org/aos/agrovoc/c_7211, http://aims.fao.org/aos/agrovoc/c_3081, http://aims.fao.org/aos/agrovoc/c_6822, http://aims.fao.org/aos/agrovoc/c_6543, |
Online Access: | http://agritrop.cirad.fr/607684/ http://agritrop.cirad.fr/607684/1/JAE-FertilityIsland.pdf |
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dig-cirad-fr-6076842024-08-19T13:08:23Z http://agritrop.cirad.fr/607684/ http://agritrop.cirad.fr/607684/ Fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert. Maurice Kenji, Laurent-Webb Liam, Dehail Adeline, Bourceret Améliia, Boivin Stéphane, Boukcim Hassan, Selosse Marc-André, Ducousso Marc. 2023. Journal of Arid Environments, 219:105074, 9 p.https://doi.org/10.1016/j.jaridenv.2023.105074 <https://doi.org/10.1016/j.jaridenv.2023.105074> Fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert Maurice, Kenji Laurent-Webb, Liam Dehail, Adeline Bourceret, Améliia Boivin, Stéphane Boukcim, Hassan Selosse, Marc-André Ducousso, Marc eng 2023 Journal of Arid Environments P35 - Fertilité du sol F40 - Écologie végétale biodiversité nutrition des plantes fertilité du sol propriété physicochimique du sol pédogénèse régime hydrique du sol http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_7173 http://aims.fao.org/aos/agrovoc/c_7211 France Arabie Saoudite La Réunion http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_6822 http://aims.fao.org/aos/agrovoc/c_6543 The distribution of plant communities in hot desert ecosystems is discontinuous and resembles the pattern of heterogeneous resource patches, known as “fertility islands”. Understanding the key factors that allow plants to establish in these conditions, as well as their associated microbial diversity, is crucial to the comprehension and preservation of these ecosystems. Saudi Arabia in the Arabian Peninsula, is one of the driest regions in the world, with a very low water regime and low soil nutrient contents. The establishment of ecosystems in these arid desert conditions is therefore subject to numerous constraints. Understanding the biotic and abiotic factors linked to the formation of fertility islands, from the perspective of soil composition and its associated microbiome, both in the soil and in the roots of associated plant community, is therefore a fundamental issue for the preservation of these ecosystems. In this study, we analyzed the soil composition between a fertility island and bare soil. The proportions of micro- and macro-elements important for plant nutrition, namely magnesium, phosphorus, potassium and iron were higher in the fertility island. We also observed that soil bacterial and fungal diversity increased in the fertility island. Key taxa such as Rhizobia and Glomeraceae which play important roles in ecosystem functioning were identified in both the fertility island soil and in the roots of the established plant community. These results confirm that plant establishment is linked to soil conditions, in line with the fertility island hypothesis, and that the microbial community in the fertility island differs both in diversity and in composition from that of the bare soil. Fertility islands soils and the roots of established plant community harbor a microbiome potentially crucial to ecosystem functioning, and are of major interest for conservation and agronomy programs. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/607684/1/JAE-FertilityIsland.pdf text cc_by_nc_nd info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/4.0/ https://doi.org/10.1016/j.jaridenv.2023.105074 10.1016/j.jaridenv.2023.105074 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaridenv.2023.105074 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.jaridenv.2023.105074 info:eu-repo/grantAgreement/////(FRA) Knowing SOil for a better understanding of its FUNctioning to improve Land uses and préservation at Al Ula/SoFunLand |
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P35 - Fertilité du sol F40 - Écologie végétale biodiversité nutrition des plantes fertilité du sol propriété physicochimique du sol pédogénèse régime hydrique du sol http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_7173 http://aims.fao.org/aos/agrovoc/c_7211 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_6822 http://aims.fao.org/aos/agrovoc/c_6543 P35 - Fertilité du sol F40 - Écologie végétale biodiversité nutrition des plantes fertilité du sol propriété physicochimique du sol pédogénèse régime hydrique du sol http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_7173 http://aims.fao.org/aos/agrovoc/c_7211 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_6822 http://aims.fao.org/aos/agrovoc/c_6543 |
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P35 - Fertilité du sol F40 - Écologie végétale biodiversité nutrition des plantes fertilité du sol propriété physicochimique du sol pédogénèse régime hydrique du sol http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_7173 http://aims.fao.org/aos/agrovoc/c_7211 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_6822 http://aims.fao.org/aos/agrovoc/c_6543 P35 - Fertilité du sol F40 - Écologie végétale biodiversité nutrition des plantes fertilité du sol propriété physicochimique du sol pédogénèse régime hydrique du sol http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_7173 http://aims.fao.org/aos/agrovoc/c_7211 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_6822 http://aims.fao.org/aos/agrovoc/c_6543 Maurice, Kenji Laurent-Webb, Liam Dehail, Adeline Bourceret, Améliia Boivin, Stéphane Boukcim, Hassan Selosse, Marc-André Ducousso, Marc Fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert |
description |
The distribution of plant communities in hot desert ecosystems is discontinuous and resembles the pattern of heterogeneous resource patches, known as “fertility islands”. Understanding the key factors that allow plants to establish in these conditions, as well as their associated microbial diversity, is crucial to the comprehension and preservation of these ecosystems. Saudi Arabia in the Arabian Peninsula, is one of the driest regions in the world, with a very low water regime and low soil nutrient contents. The establishment of ecosystems in these arid desert conditions is therefore subject to numerous constraints. Understanding the biotic and abiotic factors linked to the formation of fertility islands, from the perspective of soil composition and its associated microbiome, both in the soil and in the roots of associated plant community, is therefore a fundamental issue for the preservation of these ecosystems. In this study, we analyzed the soil composition between a fertility island and bare soil. The proportions of micro- and macro-elements important for plant nutrition, namely magnesium, phosphorus, potassium and iron were higher in the fertility island. We also observed that soil bacterial and fungal diversity increased in the fertility island. Key taxa such as Rhizobia and Glomeraceae which play important roles in ecosystem functioning were identified in both the fertility island soil and in the roots of the established plant community. These results confirm that plant establishment is linked to soil conditions, in line with the fertility island hypothesis, and that the microbial community in the fertility island differs both in diversity and in composition from that of the bare soil. Fertility islands soils and the roots of established plant community harbor a microbiome potentially crucial to ecosystem functioning, and are of major interest for conservation and agronomy programs. |
format |
article |
topic_facet |
P35 - Fertilité du sol F40 - Écologie végétale biodiversité nutrition des plantes fertilité du sol propriété physicochimique du sol pédogénèse régime hydrique du sol http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_16379 http://aims.fao.org/aos/agrovoc/c_7170 http://aims.fao.org/aos/agrovoc/c_7182 http://aims.fao.org/aos/agrovoc/c_7173 http://aims.fao.org/aos/agrovoc/c_7211 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_6822 http://aims.fao.org/aos/agrovoc/c_6543 |
author |
Maurice, Kenji Laurent-Webb, Liam Dehail, Adeline Bourceret, Améliia Boivin, Stéphane Boukcim, Hassan Selosse, Marc-André Ducousso, Marc |
author_facet |
Maurice, Kenji Laurent-Webb, Liam Dehail, Adeline Bourceret, Améliia Boivin, Stéphane Boukcim, Hassan Selosse, Marc-André Ducousso, Marc |
author_sort |
Maurice, Kenji |
title |
Fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert |
title_short |
Fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert |
title_full |
Fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert |
title_fullStr |
Fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert |
title_full_unstemmed |
Fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert |
title_sort |
fertility islands, keys to the establishment of plant and microbial diversity in a highly alkaline hot desert |
url |
http://agritrop.cirad.fr/607684/ http://agritrop.cirad.fr/607684/1/JAE-FertilityIsland.pdf |
work_keys_str_mv |
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_version_ |
1809110792191082496 |