Full TGIF Record # 57710
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Web URL(s):https://link.springer.com/article/10.1023/A%3A1004371309361
    Last checked: 09/25/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide page
Publication Type:
i
Refereed
Author(s):van den Pol-van Dasselaar, A.; van Beusichem, M. L.; Oenema, O.
Author Affiliation:Department of Environmental Sciences, Sub-department Soil Science and Plant Nutrition, P.O. Box 8005, 6700 EC Wageningen, the Netherlands
Title:Effects of soil moisture content and temperature on methane uptake by grasslands on sandy soils
Source:Plant and Soil. Vol. 204, No. 2, July 1998, p. 213-222.
# of Pages:10
Publishing Information:Dordrecht, Netherlands: Kluwer Academic Publishers
Keywords:TIC Keywords: Soil moisture; Temperatures; Methane gas; Uptake; Grasslands
Abstract/Contents:"Aerobic grasslands may consume significant amounts of atmospheric methane (CH₄). We aimed (i) to assess the spatial and temporal variability of net CH₄ fluxes from grasslands on aerobic sandy soils, and (ii) to explain the variability in net CH₄ fluxes by differences in soil moisture content and temperature. Net CH₄ fluxes were measured with vented closed flux chambers at two sites with low N input on sandy soils in the Netherlands: (i) Wolfheze, a heather grassland, and (ii) Bovenbuurtse Weilanden, a grassland which is mown twice a year. Spatial variability of net CH₄ fluxes was analysed using geostatistics. In incubation experiments, the effects of soil moisture content and temperature on CH₄ uptake capacity were assessed. Temporal variability of net CH₄ fluxes at Wolfheze was related to differences in soil temperature (r² of 0.57) and soil moisture content (r² of 0.73). Atmospheric CH₄ uptake was highest at high soil temperatures and intermediate soil moisture contents. Spatial variability of net CH₄ fluxes was high, both at Wolfheze and at Bovenbuurtse Weilanden. Incubation experiments showed that, at soil moisture contents lower than 5% (w/w), CH₄ uptake was completely inhibited, probably due to physiological water stress of methanotrophs. At soil moisture contents higher than 50% (w/w), CH₄ uptake was greatly reduced, probably due to the slow down of diffusive CH₄ and O₂ transport in the soil, which may have resulted in reduced CH₄ oxidation and possibly some CH₄ production. Optimum soil moisture contents for CH₄ uptake were in the range of 20-35% (w/w), as prevailing in the field. The sensitivity of CH₄ uptake to soil moisture content may result in short-term variability of net atmospheric CH₄ uptake in response to precipitation and evapotranspiration, as well as in long-term variability due to changing precipitation patterns as a result of climate change."
Language:English
References:32
Note:Figures
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
van den Pol-van Dasselaar, A., M. L. van Beusichem, and O. Oenema. 1998. Effects of soil moisture content and temperature on methane uptake by grasslands on sandy soils. Plant Soil. 204(2):p. 213-222.
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Web URL(s):
https://link.springer.com/article/10.1023/A%3A1004371309361
    Last checked: 09/25/2017
    Access conditions: Item is within a limited-access website
    Notes: Guide page
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