【摘要】 根据搜集到的气象资料 ,采用FAO(联合国粮农组织 )推荐的作物需水量公式 ,计算贵州几种主要作物的需水量 ,并对其水分生产效率进行分析。结果表明 ,贵州栽种的主要作物中 ,需水量最多的是水稻 ,为 86 4 .6mm ,其次是玉米6 0 8.9mm ,再次是油菜 4 5 1.9mm ,最少的是小麦 ,为 4 2 6 .8mm。贵州农业水分生产利用率十分低下 ,比发达地区 (南京 )低4 0 % ,比发达国家 (以色列 )低 70 %。根据贵州省目前农业水资源利用现状 ,提出水资源可持续利用的相应对策更多还原

【Abstract】 The water requirements for several crops in Guizhou were calculated by adopting FAO recommended (formula) and using the climatic data of Guizhou and then water use efficiency of several crops was analyzed. The results showed that the water requirements were in order of rice ((864.6mm))>corn((608.9mm))>rape((451.9mm))>wheat((426.8mm)). The WUE of Guizhou was very low. It was 40% lower than developed regions (like Nanjing) or 70% lower than developed countries(like (Israel)). The counter-measures for sustainable use of water resources were put forward in the light of status of agricultural water resources of Guizhou.更多还原