摘要
本文着重讨论了在确定合理取样数目后应在田间如何布点取样。在大量田间试验基础上对均匀布点法（含顺序布点法）、一次随机布点法、二次随机布点法和混合布点法作了比较并用计算机实现了上述方法的模拟。最后对取样布点法的选用作了评述与建议。
This paper discusses the sampling methods in soil moisture monitoring when the number of sampling is determined.Four sampling methods generally used in traditional statistics are introduced to the sampling work in soil moisture monitoring.They are:(1)the uniform sampling method;(2)the random sampling method;(3)the stratified sampling method,and(4)the two-stage sampling method or the combined sampling method. Accordingly,in situ sampling tests were demonstrated along a line,in a field,in a village and in a farm respectively.The sampling methods mentioned above have been simulated by computer on the basis of in situ data and their statistical accuracy have been evaluated.
出处
《灌溉排水》
CSCD
1996年第3期9-15,共7页
Irrigation and Drainage
基金
国家自然科学基金
