1. General Model Information

Name: BLUE GRAMA

Acronym: BLUEGRAMA


Main medium: terrestrial+air
Main subject: biogeochemistry
Organization level: organism
Type of model: not specified
Main application:
Keywords: grassland, blue grama, Bouteloua gracilis, soil, water, canopy, irradiance, roots

Contact:

Jon Hanson
Phone:
Fax :
email:

Hanson, J.D.; Parton, W.J.; Innis, G.S.

Author(s):

Hanson, J.D.; Parton, W.J.; Innis, G.S.

Abstract:

Interseasonal biomass dynamics of blue grama (Bouteloua gracilis) are simulated as functions of soil water potential, soil and canopy air temperatures, and irradiance. The model predicts spring growth, net photosynthesis, leaf dark respiration, root and crown respiration, carbohydrate translocation to leaves, crowns and roots, plant death, and litter fall.Young expanding leaves and mature leaves are included in the model framework. Roots are simulated in three soil layers. Though originally designed to be incorporated into the ELM model , this objective was never reached. Aboveground processes simulated in the BLUE GRAMA model:

Belowground processes simulated in the BLUE GRAMA model : (from: Hanson, J.D.; Parton, W.J.; Innis, G.S.; 1985 : Plant growth and production of grassland ecosystems: A comparison of modelling approaches. Ecological Modelling (29), P. 131-144.)

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s):

II.3 Manuals:



II.4 Data:



III. Mathematical Information


III.1 Mathematics


III.2 Quantities


III.2.1 Input

III.2.2 Output


IV. References

Detling, J.K.; Parton, W.J.; Hunt, H.W.;1978 :An empirical model for estimating CO2 exchange of Bouteloua Gracilis (H.B.K.) Lag. in shortgrass prairie. Oecologia (Berlin),(33), P. 137-147.
Detling, J.K.; Parton, W.J.; Hunt,H.W.; 1979 : A simulation model of Bouteloua gracilis dynamics on the North American shortgrass prairie.Oecologia (Berlin),(38), P. 167-191.
Hanson, J.D.; Parton, W.J.; Innis, G.S.; 1985 : Plant growth and production of grassland ecosystems -A comparison of modelling approaches. Ecological Modelling (29), P. 131-144.



V. Further information in the World-Wide-Web



VI. Additional remarks


Last review of this document by: T. Gabele: 17. 9. 1997 -
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:39 CEST 2002

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