基于DEM的丘陵山区土地整理项目辅助决策

Assistant Decision Making for DEM based Land Readjustment Project in Hills and Mountainous Areas

研究目的:借助DEM进行丘陵山区土地整理项目辅助决策,以期为丘陵山区土地整理项目的规划设计工作提供参考。研究方法:利用项目区大比例尺地形图及相关资料建立DEM,利用ARCGIS等软件,实现项目区总体规划方案,工程项目规划和工程量测算等方面的辅助决策。研究结果:采用DEM进行丘陵山区土地整理项目辅助决策方法可行且可提高工作效率、增强设计精度。研究结论:利用DEM在空间地形处理方面的优势,可为复杂地形条件下的土地整理项目提供辅助决策,有必要利用DEM和GIS软件的空间分析与处理功能,在常用GIS平台上开发一套专用于土地整理项目规划设计的工具包,从总体上提高土地整理工作科技水平。

Research purpose: Land readjustment plays an important role in keeping dynamic balance of cultivated land amount, while land readjustment in hills and mountainous areas takes a lot of proportions. Influenced by topography and other restricted factors, the land readjustment project in hills and mountainous areas is more difficult in project planning &designing. Using DEM and GIS technique to assist decision-making for land readjustment will contribute to the further works.Research method: By using large scale's relief map and other necessary materials, DEM of research areas was built, together with ARCGIS, assistant decision making can be achieved, such as the general planning establishing, specific project choosing, project quantity calculating, etc. Result: Taking a real case for an instance, it is demonstrated that it will enhance the efficiency and improve precision of land readjustment project by using DEM method. Conclusion: Take advantage of powerful spatial analysis function of DEM, the assistant decision making for land readjustment project in complex terrain areas can be made. It is necessary to develop special toolboxes for project planning &designing to promote the quality of land readjustment.