【摘要】 针对环境和生态研究中的抽样问题,本文给出了确定其最小容量的计算公式。同时还建立了“较松校正样本容量区间”和“较紧校正样本容量区间”的概念,并且设计了求这两种区间的办法。文中用实测数据对上述公式和方法进行了验证,取得了令人满意的效果。本文所介绍的公式与方法,为科研工作者节省人力、物力而压缩样本容量提供了可靠的依据。更多还原

【Abstract】 In this paper, a formula of determining the least sampling capacity in -the study of ecology and environment is given. And also, the author establi-shed two new concepts-- "Looser corrected sampling capacity interval" and"Closer corrected sampling capacity interval". The methods of determining thoseintervals are designed. The formula and the methods are proved by practicedata to be reliable and according to which specialists could reduce samplingcapacity as much as possible basing on their study conditions.更多还原