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|Title: ||Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer|
|Authors: ||Andrade, José|
|Editors: ||Bublinec, Eduard|
|Keywords: ||crop establishment,|
|Issue Date: ||2010|
|Publisher: ||Institute of Foest Ecology of the Slovak Academy of Sciences|
|Citation: ||Andrade, J., Alexandre, C. Basch, G. 2010. Effects of soil tillage and mulching on thermal performance of a Luvisol topsoil layer. Folia oecologica, 37,nº1, 1-7|
|Abstract: ||Important heat transfer processes occurring on soil surface control the thermal environment
within the topsoil layer and the boundary layer above. Soil management practices such as the
application of mulches or the formation of a soil micro relief through tillage modify the thermal
regime of soils. The aim of this study was to compare the effects of soil tillage and the application
of stubble mulch and different amounts of straw mulch on the thermal behaviour of a Luvisol.
The experiments were performed from January to May 2007, in a field sown with winter wheat.
Temperature was measured with copper-constantan thermocouples placed over straw and over
stubble, at soil surface and at 2, 4 and 8 cm depths. Compared with tilled bare soil, the application
of straw mulch seems to affect the soil thermal regime more significantly than that of stubble
mulch. The topsoil under straw mulch showed the lowest thermal amplitudes and the highest
minimum temperatures. From March to May, the mean temperatures in the profiles covered by
straw were significantly lower than those recorded on the remaining plots. Implications of these
techniques for soil temperature control in crop growing are discussed too.|
|Appears in Collections:||GEO - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica|
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