Environmental Science
4 years ago

New method accurately estimates farmland water needs, revolutionizing irrigation practices.

IOP Conference Series Earth and Environmental Science
Estimation of farmland evapotranspiration based on SEBAL model in Kai-Kong River Basin, Xinjiang
Mingxing Cha, Xiaoqin Wang, Yali Li, Qiu Pengxun

Paper Summary

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Farmland evapotranspiration in Xinjiang's Kai-Kong River Basin was estimated using the SEBAL model and Landsat data. The method calculated net radiation and soil heat flux to determine daily evapotranspiration. Results showed that the SEBAL model, combined with remote sensing data, accurately estimated evapotranspiration within 1mm of the FAO56 Penman-Monteith formula. The model's accuracy was over 80% for most growth stages, making it a useful tool for managing irrigation and water resources in farmland.