摘要
本文以高桥浩一郎蒸散量公式计算的陆面蒸散量为前提,利用剩余降水,通过多元、线性和非线性回归、模糊隶属函数等分析方法,分析并确定了黑龙江省八五六农场作物生长季蒸散量与同期降水量,蒸散量以外的剩余降水与大豆产量的关系和旱涝灾害指标。建立了陆面蒸散量与温度和降水量的转化方程:y=14.0x_1+0.2516x_2-78.7897,陆面蒸散量和降水量的指数函数方程:y=383.5112e^- 148.602/x和剩余降水量与大豆气象产量隶属函数关系方程:y=-43.5691+59.2702x,并均达到了极显著效果。
In this treatise, the land surface evaporation was calcu- lated with the formula suggested by Takahashi using the analytical me- thods of multi-element regression, linear and non-linear regression, and fuzzy subordinate function. The relationship between soybean yield and the excess precipitation (the difference, between precipitation and evaporation) was analysed and the indices of drought and flood were suggested. There has been established several equations, showing the relation between: land surface evaportion and the temperature and preci- pitation y=14.0x_1+0.2516x_2-78. 7897; land surface evaporation and the precipitation y=383.5112e^(-148.6021x); the excess precipitation and the yield of soybean: y=-43.5691+59 .2702x. These equations are proved to be very significant.
出处
《沈阳农业大学学报》
CAS
CSCD
1992年第Z05期40-43,共4页
Journal of Shenyang Agricultural University
关键词
陆面蒸散量
蒸敬量
旱涝
land surface evaporation
precipitation
drought and flood disaster
soybean yield
