摘要
把最优分割聚类法应用到非充分灌溉条件下土壤水分胁迫阈值的计算,利用作物生理生态突变特征和最优分割理论,提出了确定非充分灌溉标准的方法。并以河南省长葛市1999～2002年田间试验资料为基本数据,应用该方法分析计算了土壤水分胁迫对冬小麦和夏玉米生理生态影响的阈值,对非充分灌溉制度研究和设计具有参考价值。
In the paper, the method for determining the deficit irrigation norm is put forward, by means of crop physiology ecology mutation characteristics, on the basis of calculating the soil water stress threshold value with optimum partitioning clustering method. The said method is used to calculating the threshold value of winter wheat and summer corn physiology and ecology response to soil water stress, taking the field test data in Changge city, Henan in 1999 to 2002 as the basic data. The method and the study result can be used for reference in study and design of deficit irrigation scheme.
出处
《灌溉排水学报》
CSCD
北大核心
2004年第5期29-31,共3页
Journal of Irrigation and Drainage
基金
河南省重大科技攻关项目(991030212)
