A Survey of the Vegetative Abundance, Diversity and Cover in Grasslands using Quadrat Measurements

Methods: The total density of various plant species, abundance and coverage was measured in a square meter quadrat for a total of 25 repetitions. The vegetation in 1/16 of the quadrat was used as an approximation of the density of the entire quadrat.<br>Study Site: The study took place in a grassland plot outside of York University Keele Campus, located in Toronto. The weather at the time of the survey was overcast, with slight rainfall.The measurements were taken using a quadrat. Measurements were taken from varying sectors of the grassland in order to ensure observations were representative.<br>Hypothesis: Grasslands can sustain a high density of vegetation of a variety of plant species due to the characteristic lack of presence of large shrubbery or trees. <br>Predictions:1) As the total grass cover in a quadrat increases, the number of different plant species observed with decrease.2) The increased presence of large plant species will decrease the overall vegetation cover in a quadrat.3) As the total abundance of observed plants in a quadrat increases, so will the total grass cover increase.<br>Attributes<br>1)Total Abundance of Plants: Numerical2)Total Number of Different Plant Species: Numerical3)Total Cover of All Vegetation Within Plot: Numerical4)Total Cover of Grasses: Numerical<br>

研究方法：在1平方米样方（quadrat）中测定各类植物物种的总密度、多度与盖度，共计开展25次重复实验。以1/16样方内的植被量作为整个样方密度的估算依据。
研究区域：本研究于加拿大多伦多市约克大学基尔校区外的草地样地开展。调查当日天气为阴天且伴有小雨。本次测定采用样方完成，为确保观测结果具有代表性，采样覆盖了草地的不同区域。
研究假说：由于草地生态系统天然缺乏大型灌木与乔木，因此能够承载多种植物物种的高密度植被群落。
研究预测：
1) 样方内草本总盖度越高，观测到的植物物种数越少。
2) 大型植物物种占比提升，会降低样方内的整体植被盖度。
3) 样方内观测到的植物总多度越高，草本总盖度也随之升高。
数据集属性：
1) 植物总多度：数值型
2) 植物物种总数：数值型
3) 样地内所有植被总盖度：数值型
4) 草本植物总盖度：数值型