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Transpiration of the Aleppo Pine (Pinus Halepensis Mill) as a Function of Environment
Author(s) -
Gindel I.
Publication year - 1964
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1934938
Subject(s) - transpiration , aleppo pine , relative humidity , environmental science , humidity , evaporation , pinus <genus> , ecology , atmospheric sciences , botany , photosynthesis , geography , biology , geology , meteorology
Transpiration of Aleppo pine was studied in three hilly regions of Israel (Hills of Judea, Mt. Carmel, and Mt. Cana'an). In spite of differences in the ecological factors of the localities tested, fluctuations and pattern of transpiration rate were similar in all of them. During the dry period of July—December no significant changes were noted in transpiration and soil—moisture percentage. The first rains, however, accompanied by favorable temperatures raised the transpiration rate. During the driest and hottest months, when all climatic factors (sun energy, temperature, etc.), including intensity of evaporation, reached their highest values, transpiration are dropped considerably. This phenomenon was particularly noticeable during "hamsin" (hot and dry desert winds) days, when evaporation rate increases two— to threefold, temperature reaches its highest values, and relative air humidity drops to its lowest value.