Drought differentially affects autotrophic and heterotrophic soil respiration rates and their temperature sensitivity

Drought differentially affects autotrophic and heterotrophic soil respiration rates and their temperature sensitivity

Climate change predictions indicate that extreme drought is likely to become more frequent in the future. In this study, the impact of drought on soil respiration ( R s ) and its autotrophic ( R a ) and heterotrophic components ( R h ) were studied in a cultivated Black Chernozemic soil in central A...

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Veröffentlicht in:Biology and fertility of soils 2019-04, Vol.55 (3), p.275-283
Hauptverfasser: Sun, Shouqin, Lei, Haiqing, Chang, Scott X.
Format: Artikel
Sprache:eng
Schlagworte:
Agriculture
Biomedical and Life Sciences
Carbon dioxide
Carbon dioxide emissions
Climate change
Climate prediction
Components
Drought
Environmental impact
Extreme drought
Life Sciences
Mathematical models
Microorganisms
Moisture content
Original Paper
Precipitation
Reduction
Respiration
Sensitivity
Soil
Soil Science & Conservation
Soil temperature
Soil water
Temperature
Temperature effects
Water content
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Zusammenfassung:Climate change predictions indicate that extreme drought is likely to become more frequent in the future. In this study, the impact of drought on soil respiration ( R s ) and its autotrophic ( R a ) and heterotrophic components ( R h ) were studied in a cultivated Black Chernozemic soil in central Alberta, Canada. The mean R s was 24.4% lower in the drought relative to the plots with ambient precipitation ( P  
ISSN:0178-2762
1432-0789
DOI:10.1007/s00374-019-01347-w