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水稻需水量是灌溉工程规划、设计及管理的重要数据,如何正确计算水稻需水量是当前值得探讨的一个重要问题,我们选用了观测资料精度较高、年限较长的试验站——湖北省随卅车水沟灌溉试验站,将其近30年次的水稻需水量试验资料与同时期各个气象因素进行相关分析,唯独与同时期累积气温的关系最为密切,故推荐用阶段积温法来计算水稻需水量.
The water requirement of paddy is an important data in the planning, design and management of irrigation projects. How to correctly calculate the water requirement of paddy is an important issue to be explored nowadays. We chose the experimental stations with higher accuracy and longer duration卅 car ditch irrigation experimental station, the nearly 30 years of rice water demand test data and the meteorological factors related to the same period of correlation analysis, except with the same period cumulative temperature is most closely related, it is recommended to use the phase temperature method to calculate Rice water requirement.