Premium
Evapotranspiration by Bermudagrass Sod, Cynodon dactylon L. Pers., in Hawaii 1
Author(s) -
Ekern Paul C.
Publication year - 1966
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1966.00021962005800040006x
Subject(s) - cynodon dactylon , evapotranspiration , lysimeter , environmental science , water content , agronomy , moisture , field capacity , dew , pan evaporation , moisture stress , soil water , hydrology (agriculture) , chemistry , soil science , irrigation , geology , geography , condensation , ecology , geotechnical engineering , organic chemistry , biology , meteorology
Evapotranspiration by bermudagrass sod planted in Wahiawa Low Humic Latosol was measured in percolate and hydraulic lysimeters on Oahu. Under high potential evaporation rates, the consumptive use of water by sod was essentially the same as class A pan evaporation when soil moisture stress was small. As the soil moisture stress increased, the grass sod maintained high rates of water use until the soil moisture stress exceeded 1 bar, but was unable to maintain these rates as the soil moisture stress increased toward the 15‐bar point. This action was in decided contrast to the self‐mulching action of bare Low Humic Latosol for which low evaporation rates developed for moisture stress of 0.15 bar (field capacity). Dew distillation rather than dew fall was a consistent pattern for water transfer at night.