用植物代替黑沥青能增加屋顶漫反射系数，蒸散能增加城市大气层的湿度；二者都有助于缓和热导效应。
Replacing black asphalt with vegetation raises rooftop albedo, and evapotranspiration can add humidity to an urban atmosphere; both help mitigate heat-island effect.
对于森林流域和灌木流域，其多年平均径流系数主要受多年平均降水量、多年平均蒸散量和平均坡度共同影响；
For forest watershed and shrub watershed, the annual mean runoff coefficient was affected by mean annual precipitation, mean annual evapotranspiration and mean slope grade.
结合气象观测数据反演作物系数，最后计算月蒸散发量。
With aid of observed climate data, FAO Penman-Monteith equaption is used to calculate the reference ET and crop coefficient.
对于不同地区只要调整净辐射折算系数便可解决由蒸散发瞬时值求算全天值的困难。
As in different area, adjusting net radiation convert coefficient only can solve the daily evapotranspiration calculation problem from the instantaneous evapotranspiration value.
用它计算的水面最大可能蒸发量乘以一定系数，便可换算成农田蒸散量。
The amount of evapotranspiration of farm land can be calculated by multiplying the largest possible evaporation capacity of water surface with a special coefficient.
用它计算的水面最大可能蒸发量乘以一定系数，便可换算成农田蒸散量。
The amount of evapotranspiration of farm land can be calculated by multiplying the largest possible evaporation capacity of water surface with a special coefficient.
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