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一运城地区除涑水盆地而外,多为黄土丘陵区。棉区绝大部分为古老的耕种良田。对棉花生产来说,具有有利的地理环境和土壤条件。据运城气象台资料,全年平均气温13.4℃,通过0℃的初、终间日数为295.1天,无霜期平均为205天;通过10℃初日为4月2日,终日为10月25日,初、终间日数为207.6天,≥10℃的积温共4491.4℃。据运城棉花研究所记载,棉花生长期平均气温为23.67℃,降雨量为470.8毫米,运城地区旬平均25℃以上为6月中旬——8月下旬,时
In addition to Yuncheng Yuncheng basin area, mostly loess hilly area. Most of the cotton area is an ancient farmland. For cotton production, has a favorable geographical and soil conditions. According to the data of Yuncheng Meteorological Station, the annual average temperature was 13.4 ℃, the initial and final days at 0 ℃ were 295.1 days, the average frost-free period was 205 days, the first day at 10 ℃ was April 2 and the last was October 25, The final number of days was 207.6 days. The accumulated temperature ≥10 ℃ was 4491.4 ℃. According to Yuncheng Cotton Institute records, the average temperature of cotton growing period is 23.67 ℃, the rainfall is 470.8 mm, Yuncheng area average of more than 25 ℃ for mid-June to late August, when