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Evaporation from bare soil in extremely arid environment in southern Israel.

作者：

Wang XueFeng;Xu Fuan;Shani U;Wang XF;Xu F

单位：

;Institute of Soil Science, Academia Sinica, P.O. Box 821, Nanjing 210008, Jiangsu, China.

关键词：

soil water balance;environment deserts models lysimeters entisols arid lands;soil water movement;evaporation soil types climatic;arid soils;equipment determination soil israel

摘要：

Micro-lysimeters of different lengths (5 cm, 10 cm and 15 cm) were used to measure soil evaporation in situ in an extremely arid area in southern Israel. The data obtained was used to evaluate two conventional evaporation models. The results showedthat the models could over-estimate total cumulative evaporation by _30% in extremely arid environments. Reducing the power factor of the conventional models by a factor of 0.1 produced good agreement between the measured and simulated cumulative evaporation. The micro-lysimeter method proved to be a simple and accurate approach for the evaluation of soil evaporation.

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Evaporation from bare soil in extremely arid environment in southern Israel.

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