作物需水量计算指南VIP专享VIP免费

i作物腾发目录第一章腾发概论.....................................................................................1腾发过程.......................................................................................................................1蒸发..........................................................................................................................................1蒸腾..........................................................................................................................................1腾发（ET）..............................................................................................................................1单位...............................................................................................................................2影响腾发的因素...........................................................................................................4气象参数...................................................................................................................................4作物因素...................................................................................................................................4管理与环境条件.......................................................................................................................4腾发概念.......................................................................................................................4参照作物腾发（ET0）.............................................................................................................4标准条件下的作物腾发量（ETc）...........................................................................................7非标准条件下的作物腾发速率（ETc adj）................................................................................8腾发速率的确定...........................................................................................................8ET 的测定.......................................