期刊
SENSORS
卷 17, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/s17112664
关键词
crop coefficient; natural vegetated area; satellite data; eddy covariance stations
资金
- SIM project Smart Irrigation from Soil Moisture Forecast Using Satellite and Hydro-Meteorological Modelling
- INNOMED project Innovative Options for Integrated Water Resources Management in the Mediterranean - Ministry for Education, University and Research of Italy within the EU Water Joint Programming Initiative
The Food and Agricultural Organization (FAO) method for potential evapotranspiration assessment is based on the crop coefficient, which allows one to relate the reference evapotranspiration of well irrigated grass to the potential evapotranspiration of specific crops. The method was originally developed for cultivated species based on lysimeter measurements of potential evapotranspiration. Not many applications to natural vegetated areas exist due to the lack of available data for these species. In this paper we investigate the potential of using evapotranspiration measurements acquired by micrometeorological stations for the definition of crop coefficient functions of natural vegetated areas and extrapolation to ungauged sites through remotely sensed data. Pastures, deciduous and evergreen forests have been considered and lower crop coefficient values are found with respect to FAO data.
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