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Contribution of cha...
Contribution of charcoal to short-term nutrient dynamics after surface fire in the humus layer of a dwarf bamboo-dominated forest
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- Makoto, Kobayashi (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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Shibata, H. (författare)
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Kim, Y. S. (författare)
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Satomura, T. (författare)
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Takagi, K. (författare)
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Nomura, M. (författare)
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Satoh, F. (författare)
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Koike, T. (författare)
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(creator_code:org_t)
- 2012-01-06
- 2012
- Engelska.
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Ingår i: Biology and Fertility of Soils. - : Springer Science and Business Media LLC. - 0178-2762 .- 1432-0789. ; 48:5, s. 569-577
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Ecological function of charcoal has been mainly investigated by adding charcoal to soil, which is not fully adequate to understand in situ the role in fire-prone forest ecosystem. To determine in situ effects of charcoal on ecosystem functions, such as nutrient availability, we conducted an experimental burning in a Japanese white birch forest with dense coverage of dwarf bamboo in the understory with or without removal of charcoal. Ammonium-N in the remaining humus layer increased immediately after the burning, but decreased to the level of unburnt plots within 1 month of the burning. Removal of charcoal had no significant effect on the NH4 (+)-N dynamics. Although burning did not affect NO3 (-)-N dynamics during the sampling period, charcoal removal led to a slight increase in NO3 (-)-N. The available P increased immediately after the burning, but then fell at 1 month after burning. Charcoal inhibited the available P depletion and prolonged the high availability of P. Greater availability of P might be due to the adsorption of phosphate in charcoal pores. Exchangeable Ca and Mg increased gradually; charcoal appeared to extend the period of higher concentration of exchangeable Ca and Mg. Charcoal deriving from fire is a key factor in influencing available nutrient in the humus layer of post-fire forests.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- Surface fire
- Charcoal
- P availability
- Cool-temperate forest
- Field manipulation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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