【摘要】 该文根据内蒙古135个站点,30年气象资料,利用Penman—Monteith公式计算得参考作物腾发量(ET0)。在此基础上,对ET0在我国北方干旱寒冷区时空上变化进行了分析,同时就ET0与4项主要气象因子(温度T、湿度RH、风速U、日照时数N)的关系进行了分区分月的分析,提出了适合我国北方干旱寒冷地区不同条件下的ET0计算模型。更多还原

【Abstract】 Based on meteorological data of 30-year of 135-sites of inner magnolia, ET₀ was computed with Penman—Monteith formula. Spatiotemporal variation of ET₀ in north arid and cold region has been analyzed. At the same time, relationships between ET₀ and meteorology factors （temperature T, humanity RH, wind speed U and time period N） in different regions and time period have been studied. Different model of ET₀ which is adapt to different condition in north arid and cold region was put farward.更多还原