土壤空间变异性研究评述

Review of the research on soil spatial variability

在研究方法上,土壤空间变异性研究经历了由定性描述到传统统计学、再到地统计学的不断改进过程,而研究内容也由对单一特性的研究逐渐转向多特性的研究。土壤空间变异性研究虽取得了明显的进展,但也存在地统计学方法在实际应用中主观性太强,土壤综合特性的空间变异性研究、时空结合的变异性研究以及与数学模型有机结合研究不够深入等问题。文章在分析国内外研究现状的基础上,提出了亟待深入研究的若干问题,对这些问题的研究有助于“数字土壤”、“精准农业”和生态环境建设的实施。

The research on soil spatial variability has not only important realistic meaning to agriculture production, but also significant theoretical meaning to eco-environment rehabilitation. The method of researching spatial variability improved gradually from quality description, traditional statistics to geostatistics while its research content transfers single parameter to many ones. The research on soil spatial variability has made tremendous progress, but it has some disadvantages, such as the application of geostatistics to the research on soil spatial variability is unripe, the research on soil multiple properties temporal and spatial variability and connection with mathematical model are only rudimental. Based on the analyses of the research status at home and abroad and existing problems, the authors propose some researches for the future, which will be benefit for the construction of digital soil, precision agriculture and environment.