Soil microbial abundance was more affected by soil depth than the altitude in peatlands

Soil microbial abundance is a key factor to predict soil organic carbon dynamics in peatlands. However, little is known about the effects of altitude and soil depth and their interaction on soil microbial abundance in peatlands. In this study, we measured the microbial abundance and soil physicochem...

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Main Authors: Meiling Zhao, Ming Wang, Yantong Zhao, Nanlin Hu, Lei Qin, Zhibin Ren, Guodong Wang, Ming Jiang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-11-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2022.1068540/full
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author Meiling Zhao
Meiling Zhao
Ming Wang
Yantong Zhao
Yantong Zhao
Nanlin Hu
Nanlin Hu
Lei Qin
Lei Qin
Zhibin Ren
Zhibin Ren
Guodong Wang
Guodong Wang
Ming Jiang
author_facet Meiling Zhao
Meiling Zhao
Ming Wang
Yantong Zhao
Yantong Zhao
Nanlin Hu
Nanlin Hu
Lei Qin
Lei Qin
Zhibin Ren
Zhibin Ren
Guodong Wang
Guodong Wang
Ming Jiang
author_sort Meiling Zhao
collection DOAJ
description Soil microbial abundance is a key factor to predict soil organic carbon dynamics in peatlands. However, little is known about the effects of altitude and soil depth and their interaction on soil microbial abundance in peatlands. In this study, we measured the microbial abundance and soil physicochemical properties at different soil depths (0–30 cm) in peatlands along an altitudinal gradient (from 200 to 1,500 m) on Changbai Mountain, China. The effect of soil depth on soil microbial abundance was stronger than the altitude. The total microbial abundance and different microbial groups showed the same trend along the soil depth and altitudinal gradients, respectively. Microbial abundance in soil layer of 5–10 cm was the highest and then decreased with soil depth; microbial abundance at the altitude of 500–800 m was the highest. Abiotic and biotic factors together drove the change in microbial abundance. Physical variables (soil water content and pH) and microbial co-occurrence network had negative effects on microbial abundance, and nutrient variables (total nitrogen and total phosphorus) had positive effects on microbial abundance. Our results demonstrated that soil depth had more effects on peatland microbial abundance than altitude. Soil environmental change with peat depth may lead to the microorganisms receiving more disturbances in future climate change.
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spelling doaj.art-0fdfb0301f2445f2b745543e182c5df92022-12-22T04:11:32ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2022-11-011310.3389/fmicb.2022.10685401068540Soil microbial abundance was more affected by soil depth than the altitude in peatlandsMeiling Zhao0Meiling Zhao1Ming Wang2Yantong Zhao3Yantong Zhao4Nanlin Hu5Nanlin Hu6Lei Qin7Lei Qin8Zhibin Ren9Zhibin Ren10Guodong Wang11Guodong Wang12Ming Jiang13Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing, ChinaState Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Institute for Peat and Mire Research, Northeast Normal University, Changchun, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaState Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Institute for Peat and Mire Research, Northeast Normal University, Changchun, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaState Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Institute for Peat and Mire Research, Northeast Normal University, Changchun, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaState Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, Institute for Peat and Mire Research, Northeast Normal University, Changchun, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaSoil microbial abundance is a key factor to predict soil organic carbon dynamics in peatlands. However, little is known about the effects of altitude and soil depth and their interaction on soil microbial abundance in peatlands. In this study, we measured the microbial abundance and soil physicochemical properties at different soil depths (0–30 cm) in peatlands along an altitudinal gradient (from 200 to 1,500 m) on Changbai Mountain, China. The effect of soil depth on soil microbial abundance was stronger than the altitude. The total microbial abundance and different microbial groups showed the same trend along the soil depth and altitudinal gradients, respectively. Microbial abundance in soil layer of 5–10 cm was the highest and then decreased with soil depth; microbial abundance at the altitude of 500–800 m was the highest. Abiotic and biotic factors together drove the change in microbial abundance. Physical variables (soil water content and pH) and microbial co-occurrence network had negative effects on microbial abundance, and nutrient variables (total nitrogen and total phosphorus) had positive effects on microbial abundance. Our results demonstrated that soil depth had more effects on peatland microbial abundance than altitude. Soil environmental change with peat depth may lead to the microorganisms receiving more disturbances in future climate change.https://www.frontiersin.org/articles/10.3389/fmicb.2022.1068540/fullmicrobial abundancealtitudinal gradientdepth gradientpeatland carbon dynamicsco-occurrence network
spellingShingle Meiling Zhao
Meiling Zhao
Ming Wang
Yantong Zhao
Yantong Zhao
Nanlin Hu
Nanlin Hu
Lei Qin
Lei Qin
Zhibin Ren
Zhibin Ren
Guodong Wang
Guodong Wang
Ming Jiang
Soil microbial abundance was more affected by soil depth than the altitude in peatlands
Frontiers in Microbiology
microbial abundance
altitudinal gradient
depth gradient
peatland carbon dynamics
co-occurrence network
title Soil microbial abundance was more affected by soil depth than the altitude in peatlands
title_full Soil microbial abundance was more affected by soil depth than the altitude in peatlands
title_fullStr Soil microbial abundance was more affected by soil depth than the altitude in peatlands
title_full_unstemmed Soil microbial abundance was more affected by soil depth than the altitude in peatlands
title_short Soil microbial abundance was more affected by soil depth than the altitude in peatlands
title_sort soil microbial abundance was more affected by soil depth than the altitude in peatlands
topic microbial abundance
altitudinal gradient
depth gradient
peatland carbon dynamics
co-occurrence network
url https://www.frontiersin.org/articles/10.3389/fmicb.2022.1068540/full
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