The effects of short-term inundation on carbon dynamics, microbial community structure and microbial activity in floodplain soil

Jessica Wilson, D.S. Baldwin, G.N. Rees, Benjamin Wilson

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

A mesocosm study was carried out to determine whether flooding affected soil microbial structure and function. Over a 24 day periodsoils were either flooded or remained dry and changes in the microbial community structure, microbial metabolic activity (determined by looking at soil respiration rates and exo-enzyme activity), community level physiological profiles and soil carbon speciation were examined. Flooding induced significant changes in the microbial community structure and increased soil respiration and enzymatic degradation rates. Shifts occurred in carbon speciation after flooding and increases in 'labile' carbon fractions were observed. The duration of flooding was also important for carbon dynamics and microbial community structure. Based on the results of the mesocosm experiment a conceptual model of floodplain soils response to flooding over time was formulated. The findings of this mesocosm study illustrate the importance of flooding to floodplain soil functioning.
Original languageEnglish
Pages (from-to)213-225
Number of pages13
JournalRiver Research and Applications
Volume27
Issue number2
DOIs
Publication statusPublished - Feb 2011

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microbial activity
floodplain
microbial community
community structure
Carbon
flooding
Soils
carbon
mesocosm
soil
soil respiration
Enzyme activity
soil carbon
enzyme activity
effect
Degradation
degradation
experiment
Experiments
rate

Cite this

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title = "The effects of short-term inundation on carbon dynamics, microbial community structure and microbial activity in floodplain soil",
abstract = "A mesocosm study was carried out to determine whether flooding affected soil microbial structure and function. Over a 24 day periodsoils were either flooded or remained dry and changes in the microbial community structure, microbial metabolic activity (determined by looking at soil respiration rates and exo-enzyme activity), community level physiological profiles and soil carbon speciation were examined. Flooding induced significant changes in the microbial community structure and increased soil respiration and enzymatic degradation rates. Shifts occurred in carbon speciation after flooding and increases in 'labile' carbon fractions were observed. The duration of flooding was also important for carbon dynamics and microbial community structure. Based on the results of the mesocosm experiment a conceptual model of floodplain soils response to flooding over time was formulated. The findings of this mesocosm study illustrate the importance of flooding to floodplain soil functioning.",
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The effects of short-term inundation on carbon dynamics, microbial community structure and microbial activity in floodplain soil. / Wilson, Jessica; Baldwin, D.S.; Rees, G.N.; Wilson, Benjamin.

In: River Research and Applications, Vol. 27, No. 2, 02.2011, p. 213-225.

Research output: Contribution to journalArticle

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T1 - The effects of short-term inundation on carbon dynamics, microbial community structure and microbial activity in floodplain soil

AU - Wilson, Jessica

AU - Baldwin, D.S.

AU - Rees, G.N.

AU - Wilson, Benjamin

N1 - Imported on 12 Apr 2017 - DigiTool details were: month (773h) = February; Journal title (773t) = River Research and Applications. ISSNs: 1535-1459;

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AB - A mesocosm study was carried out to determine whether flooding affected soil microbial structure and function. Over a 24 day periodsoils were either flooded or remained dry and changes in the microbial community structure, microbial metabolic activity (determined by looking at soil respiration rates and exo-enzyme activity), community level physiological profiles and soil carbon speciation were examined. Flooding induced significant changes in the microbial community structure and increased soil respiration and enzymatic degradation rates. Shifts occurred in carbon speciation after flooding and increases in 'labile' carbon fractions were observed. The duration of flooding was also important for carbon dynamics and microbial community structure. Based on the results of the mesocosm experiment a conceptual model of floodplain soils response to flooding over time was formulated. The findings of this mesocosm study illustrate the importance of flooding to floodplain soil functioning.

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KW - Labile carbon

KW - Shedding floodplain

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