Air and soil temperature relationships in a network of tropical soil families
1986
Manrique, L.A. (University of Hawaii, Honolulu, Hawaii (USA). Dept. of Agronomy and Soil Science)
Soil temperature and meteorological data were collected at 14 sites in Hawaii, Philippines, Indonesia and Cameroon and 3 soil families, Tropeptic Eutrustox, Hydric Dystrandepts and Typic Paleudults. Between 70 and 80 % of soil temperature variation was due to air temperature at 10 and 50 cm depths. Soil temperature estimates were improved by addition of latitude as a variable. As rainfall increased the relationship between air and soil temperature improved; this was demonstrated in the humid Hydric Dystrandepts and Typic Paleudults. In the drier soils, Tropeptic Eutrustox, solar radiation increased soil temperature. Soil temperature estimates from regression equations were within 0.8 and 1.3 degrees C
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