摘要
以实测的土壤水分资料为基础，辅以收集其它方面的研究材料，借鉴并吸收了Ｃｅｒｅｓ－Ｗｈｅａｔ中的土壤水分平衡思想，建立了冬小麦田间土壤水分平衡动态模拟模型。利用模型模拟了江苏省南北两地区冬小麦在拔节到成熟期间农田土壤含水量的时空变化。该模型与实测值相比，具有很好的一致性，其相关系数的平均值为０．８９，标准误差小于４．０％，并且北方地区比南方地区模拟效果更好些。还就麦田实测资料进行了不同生育期水分适宜状况的评定。
Modeling on soil water dynamic variation in winter wheat fields was studied based on the data collected both from the field observations and from other material sources.The model was tested to simulate the soil water dynamic variation in winter wheat fields from elongation stage to milky maturity in the north and south areas of Jiangsu province using three years datum.The results of the simulation are compared with actual observations and there exists a good agreement between them.The results also indicate that the average of the correlation coefficients between the simulated and observed values is 0 89 with a standard error less than 4% and that the model behaves better in the northern area than in the south.The suitability of water regime for the observed data in wheat fields at various stages were evaluted using the suggestal indices.
出处
《江苏农业学报》
CSCD
北大核心
1998年第1期36-41,共6页
Jiangsu Journal of Agricultural Sciences
基金
国家自然科学基金
关键词
土壤水分
蒸散
渗漏
模拟模型
小麦
soil water content
evapotranspiration
percolation
simulation model
wheat
