Two-Dimensional Systematic Sampling of Land Use
通过两个完整土地利用数据的实验，比较了系统抽样与其他抽样方案的效率，分析了结果与数据自相关函数的关系，并评估了从单个样本估计抽样误差的方法。
SUMMARY In this paper two-dimensional systematic sampling of land use is considered. Data for two study areas which provide a complete enumeration of land use, and which are held in digital form, are a basis for a series of sampling experiments. First, the efficiency of systematic sampling is compared with other schemes. Second, these results are related to the autocorrelation functions of the data. Third, methods for estimating sampling error from a single sample are assessed. The results reported here confirm the statistical efficiency of systematic sampling but also highlight some important unresolved issues of this approach.