摘要
用经典的概率统计方法研究了膜上灌条件下土壤水分某些要素的空间变异性。分析结果表明，土壤水分各特性值近似为正态分布，其合理取样数不大于４０。
The method of classical probability is used to study the spatial variability of several soil water elements under the condition of onfilm irrigation.The results have showed that the properties of the soil water are normally distributed the sound number of the samples is less than 40.
出处
《石河子大学学报（自然科学版）》
CAS
1999年第2期143-145,共3页
Journal of Shihezi University(Natural Science)
关键词
膜上灌
土壤
水分特性
空间变异性
统计分析
onfilm irrigation
soil water properties
spatial variability
normally distributed
the sound number of the samples
