Effects of land use on soil microbial biomass, activity and community structure at different soil depths in the Danube floodplain

J.P. van Leeuwen, I. Djukic, J. Bloem, T. Lehtinen, L. Hemerik, P.C. de Ruiter, G.J. Lair

Research output: Contribution to journalArticleAcademicpeer-review

27 Citations (Scopus)

Abstract

Human activities such as land use and -management may strongly affect the soil's ability to provide ecosystem services, in which microbes are playing a key role. Because sampling is usually restricted to the topsoil, little is known about effects of land use on ecosystem functioning down the soil profile. The present study assessed the effects of different land use types (arable, forest, grassland) on soil microbial biomass, activity and community structure at different soil depths (A, AC, C horizons), under the same climatic and pedological conditions, in the Danube Floodplain in Austria. Microbial biomass was 4–5 times lower in the arable field than in forest and grassland in the upper horizons. Additionally, both microbial biomass and activity decreased 3–4 fold with soil depth in forest and grassland. However, up to 30% of total microbial biomass was found in the C horizon in the arable field. We found a differentiation of microbial community structure between land use types and with soil depth: i.e. strong differences in the topsoil between land uses, whereas community structure in the C horizon was similar. This study confirms that land use exerts strong effects on soil microbes in the topsoil and that microbial biomass and activity decrease with soil depth. However, considerable microbial biomass and activity are found below 30 cm depth which is usually not included in samplings. In the deeper soil horizon effects of land use disappear, with microbial community structure and functioning becoming similar in similar pedological conditions.
LanguageEnglish
Pages14-20
JournalEuropean Journal of Soil Biology
Volume79
DOIs
Publication statusPublished - 2017

Fingerprint

soil depth
floodplains
Biomass
microbial biomass
floodplain
community structure
Soil
land use
C horizons
biomass
soil
microbial activity
topsoil
grasslands
grassland
microbial communities
microbial community
Ecosystem
sampling
soil horizons

Keywords

  • Land use
  • Microbial activity
  • PLFA
  • Soil depth
  • Soil ecosystem functioning
  • Soil microbial biomass

Cite this

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title = "Effects of land use on soil microbial biomass, activity and community structure at different soil depths in the Danube floodplain",
abstract = "Human activities such as land use and -management may strongly affect the soil's ability to provide ecosystem services, in which microbes are playing a key role. Because sampling is usually restricted to the topsoil, little is known about effects of land use on ecosystem functioning down the soil profile. The present study assessed the effects of different land use types (arable, forest, grassland) on soil microbial biomass, activity and community structure at different soil depths (A, AC, C horizons), under the same climatic and pedological conditions, in the Danube Floodplain in Austria. Microbial biomass was 4–5 times lower in the arable field than in forest and grassland in the upper horizons. Additionally, both microbial biomass and activity decreased 3–4 fold with soil depth in forest and grassland. However, up to 30{\%} of total microbial biomass was found in the C horizon in the arable field. We found a differentiation of microbial community structure between land use types and with soil depth: i.e. strong differences in the topsoil between land uses, whereas community structure in the C horizon was similar. This study confirms that land use exerts strong effects on soil microbes in the topsoil and that microbial biomass and activity decrease with soil depth. However, considerable microbial biomass and activity are found below 30 cm depth which is usually not included in samplings. In the deeper soil horizon effects of land use disappear, with microbial community structure and functioning becoming similar in similar pedological conditions.",
keywords = "Land use, Microbial activity, PLFA, Soil depth, Soil ecosystem functioning, Soil microbial biomass",
author = "{van Leeuwen}, J.P. and I. Djukic and J. Bloem and T. Lehtinen and L. Hemerik and {de Ruiter}, P.C. and G.J. Lair",
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language = "English",
volume = "79",
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Effects of land use on soil microbial biomass, activity and community structure at different soil depths in the Danube floodplain. / van Leeuwen, J.P.; Djukic, I.; Bloem, J.; Lehtinen, T.; Hemerik, L.; de Ruiter, P.C.; Lair, G.J.

In: European Journal of Soil Biology, Vol. 79, 2017, p. 14-20.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Effects of land use on soil microbial biomass, activity and community structure at different soil depths in the Danube floodplain

AU - van Leeuwen, J.P.

AU - Djukic, I.

AU - Bloem, J.

AU - Lehtinen, T.

AU - Hemerik, L.

AU - de Ruiter, P.C.

AU - Lair, G.J.

PY - 2017

Y1 - 2017

N2 - Human activities such as land use and -management may strongly affect the soil's ability to provide ecosystem services, in which microbes are playing a key role. Because sampling is usually restricted to the topsoil, little is known about effects of land use on ecosystem functioning down the soil profile. The present study assessed the effects of different land use types (arable, forest, grassland) on soil microbial biomass, activity and community structure at different soil depths (A, AC, C horizons), under the same climatic and pedological conditions, in the Danube Floodplain in Austria. Microbial biomass was 4–5 times lower in the arable field than in forest and grassland in the upper horizons. Additionally, both microbial biomass and activity decreased 3–4 fold with soil depth in forest and grassland. However, up to 30% of total microbial biomass was found in the C horizon in the arable field. We found a differentiation of microbial community structure between land use types and with soil depth: i.e. strong differences in the topsoil between land uses, whereas community structure in the C horizon was similar. This study confirms that land use exerts strong effects on soil microbes in the topsoil and that microbial biomass and activity decrease with soil depth. However, considerable microbial biomass and activity are found below 30 cm depth which is usually not included in samplings. In the deeper soil horizon effects of land use disappear, with microbial community structure and functioning becoming similar in similar pedological conditions.

AB - Human activities such as land use and -management may strongly affect the soil's ability to provide ecosystem services, in which microbes are playing a key role. Because sampling is usually restricted to the topsoil, little is known about effects of land use on ecosystem functioning down the soil profile. The present study assessed the effects of different land use types (arable, forest, grassland) on soil microbial biomass, activity and community structure at different soil depths (A, AC, C horizons), under the same climatic and pedological conditions, in the Danube Floodplain in Austria. Microbial biomass was 4–5 times lower in the arable field than in forest and grassland in the upper horizons. Additionally, both microbial biomass and activity decreased 3–4 fold with soil depth in forest and grassland. However, up to 30% of total microbial biomass was found in the C horizon in the arable field. We found a differentiation of microbial community structure between land use types and with soil depth: i.e. strong differences in the topsoil between land uses, whereas community structure in the C horizon was similar. This study confirms that land use exerts strong effects on soil microbes in the topsoil and that microbial biomass and activity decrease with soil depth. However, considerable microbial biomass and activity are found below 30 cm depth which is usually not included in samplings. In the deeper soil horizon effects of land use disappear, with microbial community structure and functioning becoming similar in similar pedological conditions.

KW - Land use

KW - Microbial activity

KW - PLFA

KW - Soil depth

KW - Soil ecosystem functioning

KW - Soil microbial biomass

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DO - 10.1016/j.ejsobi.2017.02.001

M3 - Article

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JO - European Journal of Soil Biology

T2 - European Journal of Soil Biology

JF - European Journal of Soil Biology

SN - 1164-5563

ER -