Persistent compaction effects on subsoil pore characteristics and hydraulic functions

Feto Esimo Berisso, Per Schjønning, Mathieu Lamandé, Lis Wollesen de Jonge, Bo Vangsø Iversen, Dorthe Wildenschild, Thomas Keller, Johan Arvidsson, Asko Simojoki

Tutkimustuotos: Artikkeli kirjassa/raportissa/konferenssijulkaisussaKonferenssiartikkeliTieteellinen

Abstrakti

The objective of this study was to determine the persistence of subsoil compaction and its effects on soil pore functions and characteristics. In the spring 2009, intact soil cores of 100 cm3 (28-32 cm layer) and 6283 cm3 (20-40 cm layer) were sampled from a compaction experiment established in 1995. Gas diffusion, air permeability and water retention characteristics were measured on 100 cm3 cores. The larger cores were CTscanned and used for the determination of saturated hydraulic conductivity. Our results show persistent compaction effects in terms of a reduced volume of soil macropore fractions, reduced gas diffusivity and saturated hydraulic conductivity. Horizontally sampled cores had more but less continuous macropores than vertically sampled cores.
Alkuperäiskielienglanti
Otsikko1st International Conference and Exploratory Workshop on Soil Architecture and Physico-Chemical Functions "CESAR" : Bringing together three generations of soil and environmental scientists. Aarhus Universitet, Det Jordbrugsvidenskabelige Fakultet.
Sivumäärä4
JulkaisupaikkaAarhus
KustantajaUniversity of Aarhus, Faculty of Agricultural Sciences
Julkaisupäivä2010
Sivut47-50
TilaJulkaistu - 2010
OKM-julkaisutyyppiB3 Vertaisarvioimaton artikkeli konferenssijulkaisussa
TapahtumaInternational Conference and Exploratory Workshop on Soil Architecture and Physico-Chemical Functions "CESAR". "Bringing together three generations of soil and environmental scientists". The Faculty of Agricultural Sciences, Aarhus University, Research Centre Foulum. - Foulum, Tanska
Kesto: 30 marraskuuta 20102 joulukuuta 2010
Konferenssinumero: 1

Lisätietoja

1st International Conference and Exploratory Workshop on Soil Architecture and Physico-Chemical Functions "CESAR". "Bringing together three generations of soil and environmental scientists". The Faculty of Agricultural Sciences, Aarhus University, Research Centre Foulum, Denmark. 30 Nov - 2 Dec 2010.
Volume:
Proceeding volume:

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