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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:
| 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. |
Publishing Information: | Dordrecht, Netherlands: Kluwer Academic Publishers |
# of Pages: | 10 |
Keywords: | TIC Keywords: Soil moisture; Temperatures; Methane gas; Uptake; Grasslands
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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 |
| MSU catalog number: SB 13 .P55 |
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