Effect of meteorological factor on water consumption of farmland shelterbelt, Northwest China

Abstract

Estimating farmland shelterbelt water use is important for oasis water resource management and agricultural development. Meteorological measurements combined with sap flow techniques were applied to study the mechanism of water consumption in farmland shelterbelt. Results showed that mean daily sap flow velocity and canopy transpiration of farmland shelterbelt varied from 429± 247 kg m−2 d−1 to 1495±634 kg m−2 d−1 and from 0.45 mm d−1 to 1.58 mm d−1. A multinomial model account for 81.3% of the variation was applied to explain canopy transpiration. Cross validation showed it provided good predictions of canopy transpiration for farmland shelterbelt. Knowing the relationship between climate variability and farmland shelterbelt water consumption is benefit for the management of water resources in oasis agriculture.