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Simulation model for transpiration, evaporation and growth of plant communities

Eckersten, Henrik (1991). Simulation model for transpiration, evaporation and growth of plant communities. 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 ; 164
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Abstract

The theory of the simulation model SPAC-GROWTH is presented. The model simulates transpiration, evaporation of intercepted water and growth for horizontally homogeneous cultivations for either non-woody or woody plants. The description aims to serve as a tool when using the model. Transpiration and evaporation simulations are based on the SPAC (Soil Plant Atmosphere Continuum) concept where the soil water potential and vapour pressure deficit of the air are input variables creating the driving force for water flow. The pathway of water through the system is pepresented by characteristic resistances. The growth is based on the "water use efficiency" concept and is allocated between leaf+stem, root and grain biomass. The plant size affects the water flow mainly through the leaf area development. The presentation also includes functions for converting daily weather input data to minute values required by the water flow simulations. Two simulation examples show all input needed by the model and some output of the model.

Authors/Creators:Eckersten, Henrik
Title:Simulation model for transpiration, evaporation and growth of plant communities
Series/Journal:Report / Swedish University of Agricultural Sciences, Department of Soil Sciences, Division of Agricultural Hydrotechnics (0348-1816)
Year of publishing :1991
Number:164
Number of Pages:36
Place of Publication:Uppsala
Publisher:Institutionen för markvetenskap, Sveriges lantbruksuniversitet
ISSN:0348-1816
Language:English
Publication Type:Report
Refereed:No
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Soil science
Keywords:Simulation model, Transpiration, Evaporation, Plant communities
URN:NBN:urn:nbn:se:slu:epsilon-8-132
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-8-132
ID Code:3954
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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