利用降水距平百分率、土壤相对湿度、湿润指数分析农业干旱程度,用高温日数分析2015年成都高温对干旱影响的强度,以及在高温干旱双重胁迫下对水稻生长发育和产量的影响.结果表明,2015年7月中下旬成都各区县发生不同程度的农业干旱,高温加剧干旱的影响强度,在高温干旱双重胁迫下水稻抽穗困难、叶片提前枯黄,后期产量测产中干旱区水稻有效穗率低、空秕率增加,导致产量降低.%Based on precipitation anomaly percentage,relative soil humidity and humidity index,effects of high temperature and drought weather on rice growth and output in Chengdu City in 2015 were researched.Research results showed that there were different degrees of agri cultural drought in different regions and counties of Chengdu in middle and late July,2015.The influence of drought was intensified by high temperature.Under the double stresses of drought and high temperature,rice heading became difficult and leaves turned yellow ahead of time.In the output estimation of later period,the rice in drought areas suffered a low rate of effective panicles and an increase rate of empty rice,which led to the drop in output.
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