Steam treatment of surface soil: how does it affect water-soluble organic matter, C mineralization, and bacterial community composition?

Autor: Sonia Czarnes, Dad Roux-Michollet, Lucile Jocteur-Monrozier, Yves Dudal
Přispěvatelé: Laboratoire d'Ecologie Microbienne - UMR 5557 (LEM), Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Ecole Nationale Vétérinaire de Lyon (ENVL), Unité Climat, Sol et Environnement (CSE), Institut National de la Recherche Agronomique (INRA), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Vétérinaire de Lyon (ENVL)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), Ecologie microbienne ( EM ), Centre National de la Recherche Scientifique ( CNRS ) -Ecole Nationale Vétérinaire de Lyon ( ENVL ) -Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de la Recherche Agronomique ( INRA ) -VetAgro Sup ( VAS ), Unité Climat, Sol et Environnement ( CSE ), Institut National de la Recherche Agronomique ( INRA )
Rok vydání: 2010
Předmět:
Soil Science & Conservation
Steaming
Soil Science
010501 environmental sciences
complex mixtures
01 natural sciences
Microbiology
[ SDV.EE ] Life Sciences [q-bio]/Ecology
environment
Dissolved organic carbon
Organic matter
0105 earth and related environmental sciences
Bacterial community . Soil disinfestation . Water-extractable organic matter . Organic farming system
[SDV.EE]Life Sciences [q-bio]/Ecology
environment
Water-extractable organic matter
2. Zero hunger
chemistry.chemical_classification
[ SDE.BE ] Environmental Sciences/Biodiversity and Ecology
Soil organic matter
Life Sciences
Soil disinfestation
food and beverages
Agriculture
04 agricultural and veterinary sciences
Mineralization (soil science)
15. Life on land
Soil quality
humanities
Humus
Agronomy
chemistry
040103 agronomy & agriculture
0401 agriculture
forestry
and fisheries
Organic farming system
Bacterial community
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Soil fertility
Agronomy and Crop Science
Zdroj: Roux-Michollet, Dad; Dudal, Yves; Jocteur-Monrozier, Lucile; & Czarnes, Sonia. (2010). Steam treatment of surface soil: how does it affect water-soluble organic matter, C mineralization, and bacterial community composition?. Biology and Fertility of Soils: Cooperating Journal of International Society of Soil Science, 46(6), pp 607-616. doi: 10.1007/s00374-010-0468-6. Retrieved from: http://www.escholarship.org/uc/item/4p92q9sz
Biology and Fertility of Soils
Biology and Fertility of Soils, Springer Verlag, 2010, 46 (46), pp.607-616. ⟨10.1007/s00374-010-0468-6⟩
Biology and Fertility of Soils, Springer Verlag, 2010, pp.607-616. ⟨10.1007/s00374-010-0468-6⟩
Biol fertil soils
Biol fertil soils, 2010, pp.607-616. 〈10.1007/s00374-010-0468-6〉
ISSN: 1432-0789
0178-2762
Popis: International audience; Steam soil disinfestation is efficiently used in the field for pre-planting pest control. Providing steam to the soil must have consequences, either beneficial or detrimental for the soil functioning. We set up a laboratory experiment to quantify the soil quality dynamics induced by this agricultural practice. In steamed and control soil, we monitored the size, the activity, and the genetic structure of the bacterial community in the top 2 cm soil every second day over a 10-day period after the treatment. We also characterized the bioavailable organic matter using fluorescence and ATRFTIR spectroscopy. We showed that steaming induced the release of twice as much dissolved organic carbon in steamed soil as in the control soil. This extra carbon was much less fluorescent and contained a higher proportion of aliphatic compounds (alkyl chains, primary alcohols). After an initial drop in the bacterial community, we observed a tenfold increase in the number of bacteria, a flush in carbon mineralization, and genetic structure modification, which could be related to the newly released carbon. Steamtreatment showed strong but quickly reversible impacts on the soil functioning, enabling farmers to sow approximately 1 week after treatment.
Databáze: OpenAIRE
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