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。
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.
出处
《中国生态农业学报》
CAS
CSCD
2007年第1期87-90,共4页
Chinese Journal of Eco-Agriculture
基金
重庆市科委百万工程资助项目部分研究内容
关键词
再生稻
光温因子
光温生产潜力
Rebirth-paddy, Light and temperature factor,Climate-produce-potential of sunshine and temperature
