WIT Press


Modelling Solar Radiation, Evapotranspiration And Soil Water Dynamics In Tropical Rainforest Logging Gaps In Guyana

Price

Free (open access)

Paper DOI

10.2495/ENV000271

Volume

41

Pages

10

Published

2000

Size

1,195 kb

Author(s)

O. van Dam

Abstract

Selective logging in the tropical rain forest of Guyana creates gaps in the canopy. The PCRaster model FORGAP was made to calculate the radiation energy, evapotranspiration and soil water dynamics of logging gaps. Model input data was gathered in experimental gaps that differ in size. Calibration was done with measured soil moisture in the experimental gaps. The model proves a good tool in identifying areas within a gap that receive more light, show larger evapo- transpiration rates or experience more moisture stress. The model can be used in scenario studies of the effects of gap size, shape and orientation to the sun on the microclimatic conditions and water availability that regulates forest regeneration. 1 Introduction One

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