黔西北高寒山区水稻产量与气象因子相关分析

分析了毕节地区 1961～ 2 0 0 0年 40a间水稻产量与其生育期间气温、降雨量、日照等主要气象因子的关系。结果表明 :9月上旬均温、5月上旬降雨量及 9月上旬日照时数与水稻产量相关达显著或极显著水平 ,是影响水稻产量的最主要气象要素。结合产量丰歉年型提出了水稻适宜的栽培技术措施

Analysis of the Relation between Rice Yield and Weather Factor in High Cold Mountain Area of Northwestern Qian

The relationship between rice output and the data of weather factors about forty years from 1961-2000 and was analyzed with the method of correlation and re-return, and in Bejie area, the weather factors included temperature, precipitation, sunshine etc. The result revealed that there was a significant correlation and main weather factor affecting rice output was the average temperature in first ten-days of September, the precipitation in first ten-days of May, the sunshine in first ten-days of September.