当地各年代气候变化趋势及其对水稻产量的影响

本文通过对当地1953～2009年共56年作物生长季节即5～9月的气象因素进行分析得出:气候因素的变化与年代的前进呈一定数量关系,每增加1个年代温度增加3.16℃.d、日照减少2.23 h、降水减少2.35 mm。水稻产量与积温的相关系数0.754**,呈极显著正相关,气候变暖的趋势有利于当地水稻产量的提高。

Trends of Changes of Local Climate and Its Impact on Rice Yield

Local meteorological factors of growing season,i.e.from May to September,for 56 years during 1953 to 2009 were analyzed.The change of meteorological factors has a quantitative relationship with year forward.The temperature increased by 3.16 centigrade,duration of sunshine decreased by 2.23 hours and precipitation reduces by 2.35 millimeters with every increasing era.The correlation coefficient of rice yield and accumulated temperature is 0.754,which presents a notable positive correlation.The warming trend is beneficial to the increase of local rice production.