Distance and Comparison Between Neighboring Trees

The data for this lab was collected at York Universit's woodlot at 4:30 P.M and was made through a contribution of efforts by Farkhanda, Olivia, Ratiba, Huda and Reena all of who began collecting such data by walking from the edge of the woodlot to the centre in a straight line. Every instance where an adult tree was approached, the distance to the nearest tree surrounding it was measured using transect measuring tape and recorded in meters. The distance of the first tree approached and its closest neighbour both had the distance at breast height measured in meters as well. In addition, the condition of each tree was also recorded on a scale of 0 to 2 where zero is a dead tree and 2 is a full canopy. This was measured with the help of human vision. These steps were then repeated nine more times for a total of 10 tree pairs. This data allowed the observers make comparisons between two trees who are growing in close proximity to eachother in order see a pattern amongst the data and to give a direction for further research studies. The conditions during the lab were in the shaded area within the woodlot. There was a slight breeze, the ground was cool and there was not any humidity.本实验数据集采集于约克大学（York University）林地样地，采集时间为当日下午4:30，由Farkhanda、Olivia、Ratiba、Huda与Reena协作完成。所有参与人员均从林地边缘沿直线向林地中心行进，开展数据采集工作。每遇一棵成年树木，即使用样带卷尺测量其与周边最近邻树的距离，并以米为单位记录。首次被选中的目标树木及其最近邻木的胸高间距同样以米为单位进行测量。此外，每棵树木的健康状况按0至2级进行分级记录：0代表枯树，2代表树冠完整，该指标通过目视评估获取。上述采集流程共重复9次，最终获得总计10组树木对数据。本数据集可用于分析近距离生长的成对树木间的关联模式，为后续相关研究提供方向。本次实验的采集环境为林地内的荫蔽区域，当时伴有微风，地面凉爽且无明显湿度。