释义 |
Reference crop 基本例句 参考作物 Modified Penman and Penman Monteith formulae were recommended to calculate the reference crop evapotranspiration by FAO one after another.FAO先后建议用Penman修正式和Penman Monteith公式计算参考作物蒸散量 . Reference cropevapotranspiration estimates on the basis of FAO recommended methodology require some meteorological data; however another approach,i. e.根据联合国粮农组织推荐的方法估算参考作物蒸发蒸腾量需要具备一定的气象资料,而使用另一种方法,即蒸发计估测ET0,可以减少基于作物蒸发蒸腾量制定灌溉制度的工作量,并且降低其复杂度。 Established the correlativity between reference crop evaporation and daily average temperature , sunlight hour, wind speed, relative humidity.建立参考作物腾发量与日平均气温,日照时数,风速,相对湿度的多元线性回归模型; The reference crop evapotranspiration in Hunpu irrigation district,Liaoning province was calculated with the equation of Penman-Monteith recommended by FAO.采用联合国粮农组织最新推荐的Penman-Monteith公式,分析了浑蒲灌区参考作物需水量。 The crop coefficients of winter wheat were obtained, based on the measured ETc by TDR in the field and calculated reference crop evapotranspiration with meteorological data.根据冬小麦生育期内实测的ETc以及用气象资料计算的参考作物蒸散量ETo,求得了冬小麦的作物系数Kc。 Based on the long-term observed data of meteorological stations in Beijing, the reference crop evapotranspirations for each month and each station were calculated, by using Penman-Monteith method recommended by the FAO.利用北京市各气象站点的长期观测资料 ,使用FAO推荐的Penman -Monteith法 ,计算了各站点逐月参考作物蒸散量ET0 。 |