Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions
Abstract Permafrost degradation by global warming is expected to alter the hydrological processes, which results in changes in vegetation species composition and gives rise to community succession. Ecotones are sensitive transition areas between ecosystem boundaries, attract particular interest due...
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crwiley:10.1002/ece3.10205 2024-09-09T20:03:06+00:00 Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions Fu, Lingyu Xie, Ruifeng Ma, Dalong Zhang, Man Liu, Lin National Natural Science Foundation of China 2023 http://dx.doi.org/10.1002/ece3.10205 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.10205 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 13, issue 6 ISSN 2045-7758 2045-7758 journal-article 2023 crwiley https://doi.org/10.1002/ece3.10205 2024-06-18T04:15:42Z Abstract Permafrost degradation by global warming is expected to alter the hydrological processes, which results in changes in vegetation species composition and gives rise to community succession. Ecotones are sensitive transition areas between ecosystem boundaries, attract particular interest due to their ecological importance and prompt responses to the environmental variables. However, the characteristics of soil microbial communities and extracellular enzymes along the forest–wetland ecotone in high‐latitude permafrost region remain poorly understood. In this study, we evaluated the variations of soil bacterial and fungal community structures and soil extracellular enzymatic activities of 0–10 cm and 10–20 cm soil layers in five different wetland types along environmental gradients, including Larix gmelinii swamp (LY), Betula platyphylla swamp (BH), Alnus sibirica var. hirsute swamp (MCY), thicket swamp (GC), and tussock swamp (CC). The relative abundances of some dominant bacterial (Actinobacteria and Verrucomicrobia) and fungal (Ascomycota and Basidiomycota) phyla differed significantly among different wetlands, while bacterial and fungal alpha diversity was not strongly affected by soil depth. PCoA results showed that vegetation type, rather than soil depth explained more variation of soil microbial community structure. β‐glucosidase and β‐N‐acetylglucosaminidase activities were significantly lower in GC and CC than in LY, BH, and MCY, while acid phosphatase activity was significantly higher in BH and GC than LY and CC. Altogether, the data suggest that soil moisture content (SMC) was the most important environmental factor contributing to the bacterial and fungal communities, while extracellular enzymatic activities were closely related to soil total organic carbon (TOC), nitrate nitrogen () and total phosphorus (TP). Article in Journal/Newspaper permafrost Wiley Online Library Ecology and Evolution 13 6 |
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English |
description |
Abstract Permafrost degradation by global warming is expected to alter the hydrological processes, which results in changes in vegetation species composition and gives rise to community succession. Ecotones are sensitive transition areas between ecosystem boundaries, attract particular interest due to their ecological importance and prompt responses to the environmental variables. However, the characteristics of soil microbial communities and extracellular enzymes along the forest–wetland ecotone in high‐latitude permafrost region remain poorly understood. In this study, we evaluated the variations of soil bacterial and fungal community structures and soil extracellular enzymatic activities of 0–10 cm and 10–20 cm soil layers in five different wetland types along environmental gradients, including Larix gmelinii swamp (LY), Betula platyphylla swamp (BH), Alnus sibirica var. hirsute swamp (MCY), thicket swamp (GC), and tussock swamp (CC). The relative abundances of some dominant bacterial (Actinobacteria and Verrucomicrobia) and fungal (Ascomycota and Basidiomycota) phyla differed significantly among different wetlands, while bacterial and fungal alpha diversity was not strongly affected by soil depth. PCoA results showed that vegetation type, rather than soil depth explained more variation of soil microbial community structure. β‐glucosidase and β‐N‐acetylglucosaminidase activities were significantly lower in GC and CC than in LY, BH, and MCY, while acid phosphatase activity was significantly higher in BH and GC than LY and CC. Altogether, the data suggest that soil moisture content (SMC) was the most important environmental factor contributing to the bacterial and fungal communities, while extracellular enzymatic activities were closely related to soil total organic carbon (TOC), nitrate nitrogen () and total phosphorus (TP). |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Fu, Lingyu Xie, Ruifeng Ma, Dalong Zhang, Man Liu, Lin |
spellingShingle |
Fu, Lingyu Xie, Ruifeng Ma, Dalong Zhang, Man Liu, Lin Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions |
author_facet |
Fu, Lingyu Xie, Ruifeng Ma, Dalong Zhang, Man Liu, Lin |
author_sort |
Fu, Lingyu |
title |
Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions |
title_short |
Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions |
title_full |
Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions |
title_fullStr |
Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions |
title_full_unstemmed |
Variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions |
title_sort |
variations in soil microbial community structure and extracellular enzymatic activities along a forest–wetland ecotone in high‐latitude permafrost regions |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/ece3.10205 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.10205 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Ecology and Evolution volume 13, issue 6 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.10205 |
container_title |
Ecology and Evolution |
container_volume |
13 |
container_issue |
6 |
_version_ |
1809935066231472128 |