棉田土壤温度与气温的关系及膜地增温效应对有效气积温的补偿作用的研究

Studies on the Correlation between Cotton Soil Temperature and Air Temperature,and the Compensating Action of Soil Temperature Increase in the Mulched Cotton Field on Effective Air Accumulation Temperature

通过田间试验和数据分析，本研究确定了地膜棉和露地棉田土壤温度与气温的线性和幂函数统计回归数学模型，并根据有效积温原理推出了地膜棉有效气积温补偿值和各生育期天数的试算方程。可将其用于ＧＯＳＳＹＭ模型。

Through the field experiment and data analysis,this paper confirms the linear and power statistical regression model between the soil temperature in the mulched and the bare cotton field and air temperature, and derives the trial calculation function from theory of effective accumulation temperature,the function can be made using calculating the compensating value of effective air accumulation temperature in cotton field mulched with plastic film and days of breeding period. The GOSSYM simulation model modified by the function could be used the mulched cotton planting.