时空地统计学方法研究及进展

Spatio-Temporal Geotatistics Method Research and Progress

随着理论技术的不断发展,对环境因子仅进行空间估计和量化已不再满足精准农业等地理分支学科的精度要求,因此人们在传统地统计方法的基础上衍生出时空地统计学。该方法将时间域和空间域紧密联系起来,运用时空插值和随机模拟,更客观全面地描述地物的区域性时空分布。本文首先阐明了时空地统计学的主要概念及历史应用领域,随后介绍了当前主流的时空地统计方法及其各自的精度与适用领域,最后总结了时空地统计方法研究的不足和方向。

With the continuous development of theory and technology, that the environmental factors estimate and quantify in spatial domain is no longer meet the precision of geographical branch subjects like precision agriculture, so spatio - temporal geostatistics comes out on the basis of classical geostatistics. The method makes the temporal and spatial domains closer together, apply to temporal interpolation and stochastic simulation, and the description in spatial and temporal distribution of the regional environment variable more objective and comprehensive. At the beginning, this paper illustrates the main concepts of spatio - temporal geostatistics, and historical applications. Later on, it introduces the current mainstreanl spatio - temporal geostatistical methods, the precision respec- tively, and their adaptive fields. Finally it summarizes the difficulties and directions of methods in spatio - temporal geostatisticsl.