1982—2015年兴安盟玉米气候适宜度变化分析

Analysis of Climate Suitability of Maize in Xingan League of Inner Mongolia

利用兴安盟突泉县1982—2015年的气象资料和玉米大田发育期观测资料,对玉米各生育期及全生育期的气候因子及综合气候适宜度进行计算分析,并与历年气象产量进行了相关分析。结果表明,全生育期综合气候适宜度与产量相关性显著,表明本模型能较好的反应我盟玉米气候适度动态变化情况,同时得出影响兴安盟玉米生长的主要气象因子为降水,其次分别为温度和日照;兴安盟日照对玉米的适宜度最高,其次为温度,降水的适宜度最低,近34a中,温度适宜度和日照适宜度呈上升趋势变化,降水适宜度年际差异较大。

Using meteorological data and field observation data,of Tuquan County in Xinan League from1982to2015.the climate suitability and comprehensive climate degree of Maize at different growth stage and whole growth period were calculated and analyzed.Through the correlation analysis between climate suitability in the whole growth stage of maize and relative meteorology yield in recent34years,showed that the model could reflect the variety of Xingan League better,and the main meteorological factor was precipitation,followed by temperature and sunshine.Also got that the sunshine suitability degree on Maize in Xingan League was the highest,followed bytemperature suitability degree and precipitation suitability degree was minimum.Nearly34years,temperature and sunshine suitability degree had upward trend,precipitation suitability degree inter annual was diverse.