Terrestrial LiDAR Reveals Influence of Fire Mediated Forest Structure on Dispersal of Bunchgrass Seeds

Our research question is does forest structure impact the dispersal distance of wind dispersed bunchgrasses? Forest structure was measured using terrestrial LiDAR. LAS files for each site are provided. These are merged files, meaning we took the nine scans that occurred at each site and merged them using reflective targets to create one site level LAS file. Dispersal data for Andropogon ternarius is provided. Seeds were dispersed from a height of 1 meter under varying wind conditions and forest structures. Dispersal distance was measured and provided in centimeters. Wind Speed is provided in miles per hour. Site type refers to frequency of prescribed fire . Tree_volume_grouped is the source data for the assessment of LiDAR to actual volume.本研究的核心科学问题为：森林结构是否会影响风播丛生禾草的扩散距离？森林结构通过地面激光雷达（terrestrial LiDAR）进行测量。本研究提供了各研究样地的LAS文件，此类文件为合并后的数据：我们将每个样地获取的9次扫描数据通过反射靶标进行拼接，最终生成单样地级别的LAS文件。本研究提供了两歧须芒草（Andropogon ternarius）的扩散相关数据，实验中种子在不同风速条件与森林结构下，从1米高度处被风扩散，扩散距离以厘米为单位进行测量并记录。风速数据以英里每小时为单位提供。样地类型指的是计划性火烧的发生频率。Tree_volume_grouped为验证激光雷达反演体积与实际体积相关性的源数据。