Abstract
Primary productivity depends strongly on seasonal variations of soil moisture and evaporation. It is also known that the amount of soil moisture and its rate of exchange, both indispensable factors of any plant-climate model, are difficult to assess. For example, Lemon et al. (1971) mention specifically that soil moisture variations and evaporation processes are not very successfully simulated by the so-called “SPAM” model with which he describes the “Sun’s Work in a Cornfield.” This steady state model is an example of the microstructure approach with empha sis on the complexities of a specific plant canopy. On the other end of the spectrum are global-scale models as exemplified by Lieth and Box (1972), who simulate world-wide relationships between primary productivity and annual averages of evapotranspiration in the “Thornthwaite Memorial Model.”
This research was supported by Grant (GA-10651X) Section on Atmospheric Science, National Science Foundation.
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References
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© 1974 Springer Science+Business Media New York
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Lettau, K., Lettau, H. (1974). Modeling of the Annual Cycle of Soil Moisture. In: Lieth, H. (eds) Phenology and Seasonality Modeling. Ecological Studies, vol 8. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-51863-8_28
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DOI: https://doi.org/10.1007/978-3-642-51863-8_28
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