喀什地区日平均温度对棉花产量的影响

通过对喀什地区棉花气候产量指数与日平均温度的相关分析 ,得出影响本地区棉花产量的日平均温度的关键时段为三叶～现蕾生育期和棉花开花盛期内 ,并与相应时段的日平均温度建立了回归模式。然后用巴楚、喀什、莎车、麦盖提、叶城的日平均温度分别与当地县市的棉花产量做了相关普查 ,分析得出影响巴楚、喀什、莎车、麦盖提棉花产量的日平均温度的关键时段也在三叶～现蕾和开花盛期期间 ,而叶城的日平均温度与棉花气候产量的相关系数很小 ,表明叶城温度条件较好 ,热量充足可充分满足棉花生长的需求。最后建立了各地棉花气候产量预报模式 ,具有一定的实用价值。

Influence of Daily mean Temperature on Cotton Yield in Kashi Region

By correlation analysis of climate yield index of cotton and daily mean temperature, the conclusion is that the key phases of daily mean temperature affecting cotton yield in Kashi region are the period from the third leaf to squaring and bloom of cotton. On account of this, the regression model has been established, thich relates cotton yield and daily mean temperature during relative phase in Kashi region. Then, based on analysis of the daily mean temperature in Baohu、Kashi、Shache、Maigaiti、Yecheng and their cotton yield, the correlational generlly check has been done and conclusion is almost the same. The correlation coefficient of the daily mean temperature and cotton yield only in Yecheng is very small, it shows that the temperature condition in Yecheng is better and its sufficient heat condition may satisfy with the meed of cotton growth. At last, the prediction model of climate yield of local cotton is established, which has surely value.