气候因子对天然草地牧草产量的影响

The Effect of Climate Factors on the Grass Yield of Natural Pasture

为了解气候因子对天然草地牧草产量的影响,运用积分回归分析法对青海省三江源同德地区气候因子对天然草地牧草产量的影响进行了研究,建立了积分回归模型,计算出4-9月各旬温度、降水、日照对牧草产量的影响系数。结果表明:对牧草产量的影响旬平均气温大于降水量,即热量条件>水分条件,光照条件对牧草产量的影响甚微。

To understand the effect of climate factors on the grass yield of natural pasture, integration regression was adopted to analyze the pasture in Sanjiangynan Tongde district in Qinghai. The model of integrated regression was set up, and the influence coefficient of temperature, precipitation, and sunlight in every 10 days to the grass yield from April to September were calculated in this paper. The results showed that the effect of average temperature of 10 days to grass yield is greater than the precipitation, means the effect of heat is greater than water, in contract the sunlight has negligible effect to the grass yield.