摘要
在区域尺度的土壤侵蚀计算中,常使用数字高程模型(DEM)提取坡度坡长因子(LS)。但常规的人工计算方法不仅计算过程复杂,步骤烦琐,还易出现错误。为此,本文提出了基于ArcGIS模型构建器计算LS的方法,将一系列地理处理工具串联在一起,构建LS提取工具,并应用于生产实践。结果表明,与人工提取方法相比,该提取工具可以实现数据自动化和流程化处理,省去中间的数据输入、输出环节,简化烦琐的操作步骤,有效提高了数据处理的效率和质量。
In soil erosion calculations at the regional scale,DEM is commonly used to extract LS.However,the conventional manual calculation method is not only complicated and cumbersome,but also prone to errors.Therefore,a method of LS calculation based on ArcGIS model builder is proposed in this paper,and a series of geographic processing tools are linked together to build LS extraction tools,and they are applied in production practice.The results show that compared with manual extraction method,the method proposed in this paper can realize data automation and streamline processing,simplify data input and output links,avoid cumbersome operation steps,and effectively improve the efficiency and quality of data processing.
作者
袁坤
王佩
张炜柯
YUAN Kun;WANG Pei;ZHANG Weike(The First Institute of Photogrammetry and Remote Sensing of the Ministry of Natural Resources,Xi’an,Shaanxi 710054,China)
出处
《测绘技术装备》
2023年第4期127-130,共4页
Geomatics Technology and Equipment
