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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 )因子与棉花产量指数的相关具有较好的稳定可靠性
Through the correlation analysis of nine temperature (or temperature) factor sequences formed by the cotton yield index in Aksu cotton area and the continuous variation temperature limit at 0.1 ℃, the following conclusions can be drawn: (1) The correlation Sex and the highest temperature of the day for the best, the average daily temperature accumulated second, the lowest temperature of the day the temperature and worst. (2) Among the three accumulated temperature (or temperature) types, the correlation between effective accumulated temperature (or temperature) and cotton yield index is the best, and the accumulated temperature (or temperature) and active accumulated temperature (or temperature) . (3) The three temperatures at daily maximum temperature ≥2 8.0 ℃ are good indicators of the amount of heat affected by cotton production in the Aksu cotton area. (4) The selected six temperature (or temperature) factors and the correlation between cotton yield index has good stability and reliability