影响阿克苏棉区棉花气象产量的温度因子研究

Researches on Cumulative Temperature Factors Effecting on Meteorological Output of Cotton in Akesu Cotton Area

通过阿克苏棉区棉花产量指数与以 0 .1℃为间隔的连续变动温度界限值所形成的 9种积温(或温度和 )的因子序列的相关性分析 ,得到以下几点结论 :(1 )相关性以日最高温度的温度和为最好 ,日平均温度积温次之 ,日最低温度的温度和最差。 (2 )在三种积温 (或温度和 )类型中 ,以有效积温 (或温度和 )与棉花产量指数的相关性最佳 ,气候积温 (或温度和 )和活动积温 (或温度和 )极为接近。(3 )≥ 2 8.0℃的日最高温度的三种温度和是评价阿克苏棉区棉花生长热量状况对产量影响程度大小的很好的热量指标。 (4)所选的 6个积温 (或温度和 )

Using analysis of correlation between meteorological output index of cotton and factor series of 9 types of cumulative temperature (or temperature sum) formed by continuously temperature limits at the interval of 0.1℃ in Akesu cotton area, several conclusion obtained are as follows: (1)The correlation with temperature sum of daily maximum temperature is the best, cumulative temperature of daily mean temperature is better, and temperature sum of daily minimum temperature is the worst.(2)Among three types of cumulative temperature, the correlation between valid cumulative temperature and meteorological output index of cotton is the best.(3)Three types of temperature sum of ≥28.0℃ daily maximum temperature are the very good indexes quantity of heat of evaluating influence of heat condition in cotton growth season on output in Akesu cotton area.(4)The correlation between six cumulative temperature factors and meteorological output index of cotton is stable and reliable.