摘要
为了研究气象条件对水稻生产的影响,为当地水稻的种植生产提供依据,对安徽南陵2005—2014年早稻、中稻和一季晚稻、双季晚稻全生育期的主要气象因子进行分析评价,研究其对各类水稻气象产量的影响,并定量计算出各气象因子与该三类水稻气象产量的相关系数。结果发现:水稻气象产量具有明显的年际变化,早稻和双季晚稻整体呈上升趋势,中稻和一季晚稻基本持平,略有下降。对比分析和相关性显示,早稻气象产量与降水量和蒸发量相关性较大,且与降水量和蒸发量分别呈负相关和正相关;中稻和一季晚稻受温度、蒸发量和降水量影响显著,与蒸发量相关性最大,并且与降水量成正比,与温度、蒸发和日照时数成反比;双季晚稻与各气象因子的相关性较前两种水稻偏小。该研究获得了南陵不同气象因子对水稻生长的影响程度,为今后水稻种植合理避开气象灾害打下基础。
In order to study the influence of meteorological conditions on rice production and provide referencefor rice planting in Nanling, Anhui Province, the main meteorological factors in the whole growth period ofearly season rice, middle-season rice and late season rice, double cropping late rice from 2005 to 2014 wereanalyzed. Then the correlation coefficients between meteorological factors and the meteorological yield of ricewere calculated. The results showed that there was obvious inter-annual variability of rice meteorological yieldwith an increase trend of early season rice and double cropping late rice and a slight decrease trend of middle-season rice and late season rice. Comparative analysis and correlation coefficients suggested thatmeteorological yield of early season rice had negative and positive correlation with precipitation andevaporation, respectively, and the correlation was strong. Meteorological yield of middle-season rice and lateseason rice was affected by temperature, evaporation and precipitation obviously, and evaporation had thestrongest effect. Meteorological yield of middle-season rice and late season rice had positive correlation withprecipitation while had negative correlation with temperature, evaporation and sunshine duration. Thecorrelation between meteorological yield of double cropping late rice and meteorological factors was relativelysmall. It was concluded that different meteorological factors impacted on rice growth in Nanling, and the results would lay a foundation for avoiding the meteorological disasters in rice planting.
出处
《中国农学通报》
2016年第24期168-173,共6页
Chinese Agricultural Science Bulletin
基金
芜湖市气象局2014年科研项目"气象条件对作物(水稻
玉米)生产影响研究"(WH201404)
关键词
气象因子
水稻
气象产量
meteorological factor
rice
meteorological yield
