摘要： 以湖北省建始县为例，研究了海拔、坡度和坡向与该区农业生产条件的关系，建立了土地适宜性评价模型。在MapGIS 支持下，该文综合应用数字高程模型（DEM）及空间叠加分析技术实现了该模型在土地适宜性评价中的应用。实践表明，该数字化定量评价方法所得的结果与实际情况相符，具有高效、准确和可视化的特点，可为政府决策提供支持。
关键词:
数字高程模型；土地适宜性评价；地理信息系统；空间叠加分析
Abstract: The model based on the relationship between elevation, slope, aspect and land use of Jishi County, and how to use the DEM and spatial overlay analysis techniques in land suitability evaluation with MapGIS are discussed. The final result is proved to be correct and the method can give the support for government decisions
Key words:
DEM; Land suitability evaluation; Geographical information system (GIS); Spatial overlay analysis
贺 瑜，刘 刚. DEM 与空间叠加分析在土地定量评价中的研究[J]. 计算机工程, 2006, 32(1): 251-253.
HE Yu, LIU Gang. Research on Comprehensive Application of DEM and GIS Spatial Overlay Analysis Technology in Land Quantitative Evaluation[J]. Computer Engineering, 2006, 32(1): 251-253.