Soil parameter variability affecting simulated field-scale water balance, erosion and phosphorus losses

Ilona Bärlund, Sirkka Tattari, Markku Puustinen, Jari Koskiaho, Markku Yli-Halla, Maximilian Posch

Tutkimustuotos: ArtikkelijulkaisuArtikkeliTieteellinenvertaisarvioitu

Abstrakti

Field-scale modelling is widely used as a means to look into interdependencies of processes and to assess potential effects of agricultural management practices as well as of climate and socio-economic scenarios. Generalisation from field-scale results to cover all agricultural land in a catchment by using typical soil-crop-slope combinations has been restricted by a lack of information for the systematic parameterisation of soils. Data from single experimental fields are seldom representative for the whole respective catchment. In this study typical soil profiles for mineral agricultural soils in Finland are defined. Key parameters describing e.g. the texture and water holding capacity of soils, were generated from existing soil data using expert knowledge and are aimed to be used for field-scale modelling when the target is not to model a particular field but soils of certain type in general. Estimates for water balance and phosphorus losses, obtained with the ICECREAM model by applying these data sets, were realistic and compatible with experimental results measured in Finland.
Alkuperäiskielienglanti
LehtiAgricultural and Food Science
Vuosikerta18
Numero3/4
Sivut402-416
Sivumäärä15
ISSN1459-6067
TilaJulkaistu - 2009
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

Tieteenalat

  • maaperä
  • fysikaaliset ominaisuudet
  • maaperäfysiikka
  • mallintaminen
  • pellot
  • eroosio
  • fosfori
  • huuhtoutuminen
  • maalajit
  • soil types
  • soil properties
  • erosion
  • phosphorus
  • simulation
  • Finland

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