【摘要】 通过对重庆竹溪镇再生稻适宜生态条件、光温变化特征以及光温气候生产潜力的分析结果表明,重庆东部地区温度因素是限制再生稻产量的重要因子,平均温度和最低温度与产量之间的关系最为密切,年际变化较小,波动系数为0.1~0.2,而光照条件、天空覆盖度也是影响再生稻产量的重要方面,其年际变化较大,前期(腋芽萌发期)波动系数为0.4~0.7,后期(抽穗~成熟期)为0.7~1.4。研究区域光温资源较丰富,光温生产潜力年际波动幅度虽然很大,距平百分率在-7.2%~4.8%之间波动,但其与实际产量之间仍有很大差距,可通过改良品种、提高农业措施使再生稻获得超高产。更多还原

【Abstract】 In order to discuss the effects of climate change on the growth of rebirth-paddy,the paper analyzed the ecological conditions of rebirth-paddy,the changing characteristics of sunlight and temperature and the climate-produce-potential of sunlight and temperature in the town of Zhuxi.The results show that sunlight and temperature are the main factors limiting the yield of rebirth-paddy.The average temperature and minimum temperature are most closely related to the yield.And sunshine and sky coverage are other two important factors relating to the yield of rebirth-paddy.The resource of light and heat is abundant in the research region,and the change of climate-produce-potential of sunlight and temperature is large,but there still exists a large gap between actual yield and climate-produce-potential of sunlight and temperature.The yield can be increased through breed-improving and agriculture measures.更多还原