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当前位置: 首页 > 文章 > 近50年来四川盆地东部水稻高温热害发生规律研究 西南大学学报(自然科学版) 2011,33 (12) 39-43
Position: Home > Articles > Study on the Occurrence of High Temperature-Induced Heat Damage in Rice in the East of Sichuan Basin in the Past 50 Years Journal of Southwest University(Natural Science Edition) 2011,33 (12) 39-43

近50年来四川盆地东部水稻高温热害发生规律研究

作  者：
何永坤;范莉;阳园燕
单  位：
重庆市气象科学研究所
关键词：
高温热害;水稻;四川盆地东部
摘  要：
利用四川和重庆共69个气象站1960-2008年的气象资料,分析了四川盆地东部近50年水稻高温热害的时空分布规律.结果表明:①水稻高温热害以20世纪60年代和70年代最重,20世纪80年代最轻,21世纪有加重的趋势;轻度高温热害呈波动下降的趋势,而重度高温热害呈增加的趋势.②水稻高温热害高值区位于四川盆地东部,中部呈西南向东北方向延伸,重度高温热害的高发区域主要集中在重庆的东北部.③根据气候趋势,采取调整播期和栽期,选择抗高温的品种,用日灌夜排、喷灌水雾和喷洒化学药剂等改善田间小气候条件的方式,可减轻高温热害的影响.
译  名：
Study on the Occurrence of High Temperature-Induced Heat Damage in Rice in the East of Sichuan Basin in the Past 50 Years
作  者：
HE Yong-kun,FAN Li,YANG Yuan-yan Chongqing Institute of Meteorological Science,Chongqing 407147,China
关键词：
heat damage;rice;east of Sichuan basin
摘  要：
Based on the meteorological data recorded at 69 meteorological stations in Sichuan and Chongqing from 1960 to 2008,the temporal and spatial distribution of high temperature-induced heat damage to rice crops in the eastern part of Sichuan basin in the recent 50 years was analyzed.Heat damage of rice was the heaviest in the 1960's and 1970's and the mildest in the 1980's,and showed an increasing trend in the 21st century.The mild heat damage showed a fluctuating downward trend,while the severe heat damage showed an upward trend.In its spatial distribution,the damage areas were located in the eastern and central parts of Sichuan basin and extended from southwest to northeast,and the most severe heat damage areas were concentrated in the northeast of Chongqing.It is recommended that suitable measures be taken to reduce the impact of heat damage by adjusting sowing date and transplanting period or selecting heat-resisting species or improving the microclimate of the field with daytime irrigation and night drainage,overhead irrigation and chemical sprays.

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