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Hydrologiska konsekvenser av energiskogsodling

Persson, Gunn (1992). Hydrologiska konsekvenser av energiskogsodling. Technical Report. Uppsala: (NL, NJ) > Dept. of Soil Sciences > Div. of Hydrotechnics, Sveriges lantbruksuniversitet. Report / Swedish University of Agricultural Sciences, Department of Soil Sciences, Division of Agricultural Hydrotechnics ; 166
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Abstract

Willow stands on a short rotation basis are introduced in Sweden as an alternative crop for energy purposes. The changes in water balance when growing these stands have been studied by simulations with a mathematical model and by an hydrological object-reference study on a peat bog. The short-rotation forests are geographically spread, grown on different soils and with varying management. This gives a spread in water balance results. The studies show that the total evaporation from short-rotation forest is higher than from virgin peatland. The total evaporation from a fertilized irrigated stand exceeds the Penman estimate while from an extensively managed stand the total evaporation is less than or equal to the Penman estimate. To reach high production figures a good supply of water is needed. The irrigation should be carefully performed as to avoid production losses or leakage of fertilizers. The changes in runoff is highly dependent on management factors such as drainage and irrigation. When growing short-rotation forests the groundwater level and the soil water storage decreases during the growth season but is recharged during the winter. The snow storage increases while the frost depth decreases.

Authors/Creators:Persson, Gunn
Title:Hydrologiska konsekvenser av energiskogsodling
Series/Journal:Report / Swedish University of Agricultural Sciences, Department of Soil Sciences, Division of Agricultural Hydrotechnics (0348-1816)
Year of publishing :1992
Number:166
Number of Pages:17
Place of Publication:Uppsala
Publisher:Institutionen för markvetenskap, Sveriges lantbruksuniversitet
ISSN:0348-1816
Language:Swedish
Publication Type:Report
Refereed:No
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Soil science
Keywords:Energiskogsodling
URN:NBN:urn:nbn:se:slu:epsilon-8-130
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-8-130
ID Code:3956
Department:(NL, NJ) > Dept. of Soil Sciences > Div. of Hydrotechnics
Deposited By: Anna Nilsson
Deposited On:14 Aug 2009 00:00
Metadata Last Modified:02 Dec 2014 10:26

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