The effect of a prototype hydromulch on soil water evaporation under controlled laboratory conditions
| Autor: | M. Teresa Mas, Ramon Josa, Antoni M.C. Verdú, Marta Ginovart |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Agroalimentària i Biotecnologia, Universitat Politècnica de Catalunya. Departament de Matemàtiques, Universitat Politècnica de Catalunya. BIOCOM-SC - Grup de Biologia Computacional i Sistemes Complexos |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
sandy loam soil
Evaporation Water conservation Byproducts reuse 010501 environmental sciences Raw material 01 natural sciences weeds Sandy loam soil Enginyeria agroalimentària::Agricultura::Producció vegetal [Àrees temàtiques de la UPC] 0105 earth and related environmental sciences Water Science and Technology Fluid Flow and Transfer Processes Punching resistance Mechanical Engineering Irrigation--Management Environmental engineering water conservation Hydraulic engineering 04 agricultural and veterinary sciences punching resistance Hydroseeding Work (electrical) byproducts reuse Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Weeds Hydromulch TC1-978 |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Journal of Hydrology and Hydromechanics, Vol 68, Iss 4, Pp 404-410 (2020) |
| Popis: | Organic hydromulches can be an interesting alternative for weed control in perennial crops, but can also reduce soil water evaporation. To examine the effect of a hydromulch layer on soil water content in dry conditions laboratory experiments were conducted at constant 25°C, 40% air RH. Both for small soil containers with a short time course and for larger soil columns (with two sensors at depths of 6 cm and 11 cm) with a longer time course, the presence and also the thickness of hydromulch were significant factors for the temporal evolution of soil water content. Two distinct stages of the evaporation process, the first or initial stage and the last or final stage, were identified, analysed and compared for these experiments. General linear models performed on the soil water content temporal evolutions showed significant differences for the first and last stages at the top and bottom of the soil columns with and without hydromulch. Hydromulch application delayed the evaporation process in comparison with the control. Moreover, the hydromulch layer, which was tested for mechanical resistance to punching, offered enough resistance to prevent its perforation by the sprouts of weed rhizomes. |
| Databáze: | OpenAIRE |
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