Sunlight and Vegetation Percentage in Danby Woodlot/Grassland

The purpose of the experiment was to determine whether a corellation existed between the amount of sunlight an environment recieves and the amount of vegetation it holds. The location of data collection occured on the Danby woodlot and grassland areas of York University, Toronto, Canada. Along with four other group members, data was collected between 3-5pm on two separate days: October 19th 2015 and October 26th 2015. The weather on October 19th was 14 degrees. partially cloudy and windy and on October 16th it was 10 degrees, mainly sunny and no significant wind existed. The amount of vegetation and sunlight in both environments (woodlot and grassland) was determined as a percentage. Sample locations were determined by a random number generator: beginning from the middle of each environment, two numbers were generated; the first (1-4) determined the direction (N, E, S, W) and the second (1-100) determined how many steps were to be taken in that location. Vegetation percentage was determined by using a 1 by 1 metre quadrat, only living vegetation that had it's roots in ground were counted. Sunlight percentage was also determined by using a 1 by 1 metre piece of blank cardboard which was laid just on top of the quadrat; the amount of sunlight that reflected off the cardboard was determined as a percentage. 50 samples were taken in each environment, each day: totalling to 100 samples for each environment.本实验旨在探究环境接收的日照量与其植被覆盖量之间是否存在相关性。数据采集地点位于加拿大多伦多约克大学的丹比林地与草地区域。笔者与其余四名小组成员，于2015年10月19日及2015年10月26日的15时至17时分两次开展数据采集工作。 2015年10月19日的气温为14摄氏度，天气为局部多云且有风；10月16日的气温为10摄氏度，以晴为主且无明显大风。 两类生境（林地与草地）的植被量与日照量均以百分比形式量化。采样点位通过随机数生成器确定：以每个区域的中心点为起始点，生成两组随机数，第一组（1-4）用于确定行进方位（北、东、南、西），第二组（1-100）用于确定该方位上需行进的步数。 植被覆盖率采用1米×1米的样方（quadrat）进行测算，仅统计根系扎根于土壤的活体植被。日照百分比的测算则借助一块1米×1米的空白硬纸板，将其平铺于样方上方，通过纸板反射的日照量占比来量化日照情况。 每日在每个生境中采集50个样本，单个生境总计采集100个样本。