影响高寒草甸产草量丰歉气象指标的探讨

应用相关分析，研究影响高寒草甸产草量气象因子的单相关程度，找出综合评判产草量丰产与歉收的５个指标因子，通过５个因子的综合处理，建立牧草丰歉气象指标模式。结果表明，拟合结果较好，拟合率达７５％。所建立的评判模式能定性地反映青海海北高寒草甸地区牧草丰产与歉收的年景划分。

The Formation of Meteorological Index of Influencing Herbage Yield in Alpine Meadow

The correlative degree of meteorological factors which responded the herbage yield in alpine meadow was analysized before index factors of appraising the herbage yield good or not were found in this paper by correlation analysis.Five meteorological factors (The average air temperature in January and Apirl this year,the precipitation in April this year,the average earth temperature in 10 cm depth in April this year and the precipitation in October last year)partially correlated with herbage yield significantly,and they can be looked as meteorological index model was set up after summed management with the 5 factors and it showed good effect for 75% imitative rate.The appraising models can show the herbage yield good or not quantitatively in Haibei alpine meadow area.