Evapotranspiration of water hyacinth (Eichhornia crassipes)
1974; Elsevier BV; Volume: 22; Issue: 3-4 Linguagem: Inglês
10.1016/0022-1694(74)90075-4
ISSN1879-2707
AutoresR. Van Der Weert, G.E. Kamerling,
Tópico(s)Constructed Wetlands for Wastewater Treatment
ResumoFrom water balance measurements near the Agricultural Experiment Station at Paramaribo and on the Brokopondo Lake, the evapotranspiration of water hyacinth appeared to be respectively 48% and 44% higher than the free water evaporation. These values are much lower than could be expected based upon values given in the literature. This discrepancy must be explained to a large extent by border effects in the experiments cited in this paper. Calculations with a Penman-type formula, in which the crop characteristics were estimated from the Brokopondo Lake data, yielded that the ratio between evapotranspiration and free water evaporation decreases with increasing amount of solar energy and increases with increasing vapour pressure deficit. Under certain conditions high evapotranspiration rates can be expected.
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