根据空间数据误差理论，对空间数据误差来源和种类、空间数据的质量要素等进行地了研究。
The error sources, types and elements affecting the quality of the spatial soil conservation data has been analyzed, by the view of the error and quality of spatial data.
其次，了解每项工作的操作流程，包含的数据种类和数据类型以及处理方法、数据的来源和流向。
Secondly, find out about the operation flow of each job, the data kind and data type and the sources of treatment method, data and flowing into included.
林业资源信息具有数据量大、种类多、来源广、结构复杂和获取成本高等特点。
The characteristics of forestry resource information are large Numbers of data, much categories, wide sources, complicated structure, and high cost for obtaining.
根据空间数据误差理论，对空间数据误差来源和种类、空间数据的质量要素等进行了研究。
The error sources, types and the elements affecting the quality of the spatial soil conservation data has been analyzed, by the view of the error and quality of spatial data.
根据空间数据误差理论，对空间数据误差来源和种类、空间数据的质量要素等进行了研究。
The error sources, types and the elements affecting the quality of the spatial soil conservation data has been analyzed, by the view of the error and quality of spatial data.
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