Distribution of Adult Tree and Sapling of Same Species

Inside a woodlot, adult tree was randomly selected. Then, the diameter of the tree, at 4 feet from the ground, was measured. The diameter was measured by holding a measuring tape to the tree and recording the distance from one end to another. After, the canopy coverage was measured by forming a square using thumb and index finger of both hands, and holding it up towards the sky. The percentage of sky covered by the tree inside the square was estimated and recorded. Next, the nearest sapling tree of the same species as the adult tree was found and the distance from the adult tree to the sapling was measured and recorded. Lastly, the diameter of the sapling was measured at the thickest part of its trunk. The whole process was repeated nine more times with trees of the same species as the first replicate.在一片小片林地中，随机选取一株成年林木。随后测量该树距地面4英尺处的树干直径：将卷尺贴合树干表面，记录树干两端间的距离作为直径数值。接下来，通过双手拇指与食指搭成正方形框架并举向天空的方式测量冠层覆盖度（canopy coverage），估算该框架内被树木冠层遮蔽的天空占比并完成记录。随后，寻得与该成年树木同物种的最近幼树（sapling），测量并记录成年树至该幼树的距离。最后，测量该幼树树干最粗壮部位的直径。上述完整流程将针对与第一组重复样本同物种的林木，再重复9次。