省域跨尺度耕地土壤养分数据库构建关键技术研究

Establishment Key Technology of Provincial Cross- scale Database of Cultivated Land Soil Nutrients

土壤养分数据库的建设是我国数字土壤建设的重要基础性工作之一。本文基于县域大比例尺耕地土壤养分数据,以山东省耕地土壤养分数据库建设为例,对数据库构建中的土壤养分空间数据库建立、属性数据库建立、空间与属性数据库关联、土壤养分分析等具体环节和关键技术进行研究,基本形成了省域跨尺度耕地土壤养分数据库构建关键技术体系。本文研究结果可为省域耕地土壤养分数据库建设提供技术支撑,为区域耕地资源的利用管理提供科学依据。

The construction of a soil nutrients database is a basic part of the construction of national digital soil. Based on the large - scale soil nutrients database in prefectural region, on the construction of Shandong province farming land soil nutrients database as an example, this paper successively studies the details and main technologies about the building of a spatial database of soil nutrients, the establishment of a attribute database, the correlation between the spatial database and the attribute database, and the analysis of soil nutrients. In view of the above processes, it basically forms a system of the key technologies about the building of a province - scale farming land soil nutrients database. The result of this research can provide a technological support for the building of a province - scale farming land soil nutrients database, and can offer a scientific basis for the use and management of regional farming resources.