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基于内蒙古典型草原生长季内羊草3种生长特性因子观测值和同时段的气象观测资料,利用数理统计等方法,针对羊草不同生长特性与气象因子的关系进行灰色关联优势分析。分析结果表明,六种气象因子对羊草3种生长特性因子影响均一致,由大到小依次为:相对湿度>降水量>蒸发量>地下温度>气温>日照时数;羊草3种生长特性因子对气象因子的敏感度依次为干重>鲜重>高度;根据6种气象因子的灰色关联分析得出,温度和水分为羊草生长发育的主要影响因素。
Based on the observation data of three growth characteristic factors of Leymus chinensis and the meteorological observation data of the same period in Inner Mongolian typical steppe growing season, the relationship between different growth characteristics of Leymus chinensis and meteorological factors was analyzed by means of mathematical statistics. The results showed that the six meteorological factors had the same effect on the growth characteristics of three species of Leymus chinensis, with the order of relative humidity, precipitation, evaporation, underground temperature, air temperature, sunshine hours, The sensitivity of the characteristic factors to the meteorological factors was in order of dry weight> fresh weight> height. According to the gray correlation analysis of the six meteorological factors, the temperature and water content were the main influencing factors for the growth and development of Leymus chinensis.