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首页> 外文期刊>Regional Environmental Change >Constructing a spatially-resolved database for modelling soil organic carbon stocks of croplands in European Russia
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Constructing a spatially-resolved database for modelling soil organic carbon stocks of croplands in European Russia

机译：建立空间分辨率数据库，用于模拟欧洲俄罗斯农田的土壤有机碳储量

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摘要

This paper describes the conception and construction of a geographic information system (GIS) for use in modelling changes in soil organic carbon stocks in European Russia. A GIS of croplands for European Russia was constructed to allow the RothC and CANDY models, and a statistical model of humus balance, to estimate how soil carbon stocks change in time. The soil map of Russia, the database of soil properties, the map of administrative division, the land use map, the climatic grid, the map of natural and agricultural zoning and an economic database serve as a basis for this system. A map and database of homogeneous units, for maximum accuracy and minimum uncertainty, was created. Homogeneous characteristics are the parameters required for modelling. In the course of this work, the sources of errors in the database and the possible ways of improving calculation accuracy were determined and are described. The methods used and decisions taken in constructing this database are applicable to other studies in which GIS databases need to be constructing from disparate sources.
机译：本文介绍了用于模拟欧洲俄罗斯土壤有机碳储量变化的地理信息系统（GIS）的概念和构建。构建了欧洲俄罗斯农田的GIS，以允许RothC和CANDY模型以及腐殖质平衡的统计模型来估计土壤碳储量如何随时间变化。俄罗斯的土壤图，土壤属性数据库，行政区划图，土地使用图，气候网格，自然和农业区划图以及经济数据库是该系统的基础。创建了均质单位的地图和数据库，以实现最大的准确性和最小的不确定性。均质特性是建模所需的参数。在这项工作的过程中，确定并描述了数据库中的错误源以及提高计算精度的可能方法。构建该数据库所使用的方法和所采取的决策适用于需要从不同来源构建GIS数据库的其他研究。

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