Effects of emergent plants on gas emission from soil surface in water

Gas emission rates from the submerged soil surface in Zizania latifolia-planted pots were higher than those from unvegetated pots and increased with increasing biomass. The oxygen supply from the atmosphere through the plants to the soil had presumably activated nitrate production by nitrification i...

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Published inJapanese Journal of Limnology (Rikusuigaku Zasshi) Vol. 60; no. 3; pp. 291 - 297
Main Authors Horiuchi, E. (Chiba Univ. (Japan)), Tsuchiya, T
Format Journal Article
LanguageEnglish
Published The Japanese Society of Limnology 01.09.1999
Subjects
AQUATIC PLANTS
convective gas flow
emergent plants
Freshwater
gas emission
GASES
GAZ
oxidation-reduction potential
OXIDOREDUCTIONS
OXIRREDUCION
OXYDOREDUCTION
PHRAGMITES
Phragmites australis
PLANTAS ACUATICAS
PLANTE AQUATIQUE
SOIL
SOL
SUELO
ZIZANIA
Zizania latifolia
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ISSN0021-5104
1882-4897
DOI10.3739/rikusui.60.291

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Summary:Gas emission rates from the submerged soil surface in Zizania latifolia-planted pots were higher than those from unvegetated pots and increased with increasing biomass. The oxygen supply from the atmosphere through the plants to the soil had presumably activated nitrate production by nitrification in oxic soils, and the nitrate had accelerated denitrification in adjacent anoxic soils. In contrast to the results for Z. latifolia, gas emission rates from soil in Phragmites australis-planted pots were lower than those from unvegetated pots. Gas generated in soils could be carried to the atmosphere through the ventilation pathway in the plant body rather than through the soil by diffusion and via the overlying water as air bubbles.
Bibliography:F60
2000002963
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0021-5104
1882-4897
DOI:10.3739/rikusui.60.291