Reference Berms in Selected Rangeland Sites in Arizona and Colorado

This dataset includes reference berms in selected rangeland study sites in Arizona and Colorado. The berms were manually identified from 1 m lidar DEMs collected during 2015-2020. Berm centerlines were provided as polylines stored as ESRI shapefiles. A berm made of multiple segments is considered as a single berm. Only berms taller than 0.6 m are included in this dataset.本数据集收录亚利桑那州与科罗拉多州选定牧场研究样地中的参考土埂（berm）。所有土埂均通过人工解译2015至2020年间采集的1米分辨率激光雷达数字高程模型（LiDAR DEM）提取得到。土埂中心线以多段线（polyline）格式存储于ESRI形状文件（ESRI Shapefile）中。由多个分段组成的土埂将被视为单条土埂。本数据集仅纳入高度大于0.6米的土埂。