Ecology Lab 2 - Relationship between Staghorn Sumac Adult and sapling in York University Woodlot

Meta data Variable and DescriptionDBH: Diameter around breast height (115 cm above ground)Canopy: Amount of sky that researcher could see amongst the leaves, through a rectangle made by fingers ( approx 10cm x 5cm )Sapling Distance: Distance measure from adult to nearest sapling with transect * all data measured in cm* Adult trees are defined as trees with a length twice as high than that of the researcher ( 160cm)* Percentage value for canopy is the estimated amount of sky that could be seen in the rectangle, made by researchers fingers, amongst leaves Meta - Analysis Data for this lab was recorded in the woodlot area on York University Keele campus on September 21st at 3-5 pm. Erin O'Connor with lab partner Samina Munawar identified different random adult and saplings of the Rhus typhina species(commonly known as Staghorn Sumac) . We started by measuring the DBH of the adult tree with a tape measure and estimating the canopy. We then found the nearest sapling and measured the distance between the adult and sapling with a transect. The DBH of the sapling was also measured with tape measure. We replicated the experiment for a total of 10 adult trees.

元数据变量与说明：
DBH：胸径（地面以上115厘米处的树干直径）；
Canopy：冠层视野占比，即研究者通过手指围成的约10cm×5cm矩形框，在树叶间隙中可观测到的天空面积占比；
Sapling Distance：幼树间距，指沿样带测量的成年植株到其最近幼树的距离，所有测量单位均为厘米（cm）。
成年植株定义为高度为研究者身高（160cm）两倍的树木。冠层百分比数值为研究者通过手指围成的矩形框，在树叶间隙中估算得到的可见天空占比。
本实验数据采集于约克大学（York University）基尔校区的林地，采集时间为9月21日15:00至17:00。埃琳·奥康纳（Erin O'Connor）与实验搭档萨米娜·穆纳瓦尔（Samina Munawar）随机选取了不同的鹿角漆树（Rhus typhina，俗称Staghorn Sumac）的成年植株与幼树。实验流程如下：首先使用卷尺测量成年植株的胸径，并估算冠层视野占比；随后找到该成年植株附近的最近幼树，通过样带测量二者之间的距离，同时使用卷尺测量该幼树的胸径。本实验共重复开展10组测量，每组对应1株成年植株。