四川水稻气候生态类型分异及区划

本文根据中国光温生态试验资料及四川水稻品比试验与气象观测的历史资料,讨论了早、中稻感温性和对温度的适应性,分析了播期、纬度、海拔等因素与稻种需求积温量的关系,以水稻品种类型对热量的适应性指标为依据,考虑四川水稻气候生态的差异性,划分出水稻综合气候生态类型区。

The contrast and the classification of rice ecoclimate types of Sichuan province

Based on the data of light-temperature ecological experiments in China and the historical data of the quality assessment trials of Sichuan province rice with meteorological observation,the paper discussed tem- perature sensitive characters of early-ripening rice and middle-ripening rice and their adapatability to temper- ature,analyzed the relation among the factors of the sowing date,the latitude,the elevation,etc.and the amount of the rice seed accumulative temperature requirement.In addition,by analysing the heat adapatabili- ty to the index for the rice quality types and regarding the rice ecoclimate differences of Sichuan province, the paper classified the complex ecoclimate type zones.