BIOL 3250 Pilot lab data sheet.pdf

Plant species diversity was measured along a random unimpeded 50 metre line using a 0.5m by 0.5m quadrat at 1 metre intervals and recorded in a field journal using a spreadsheet with 6 columns representing a variable and 50 rows representing individual quadrats. The first column represented the number of times a full survey was conducted, in this case the survey was only conducted once. The second column represented the date of the study, which was September 15^th, 2020 at 1pm. The third column represented the name of the researcher taking the measurements. The fourth column represented the location study site, which was Firgrove Park, coordinate 43.7520° N, 79.5212° W. The fifth column represented the total number of different species found within each quadrat which were identified based on descriptions of the Ontario weeds gallery and assigned a specific code. Any species that had more than 50% of its body in the border of the quadrat was account for and any plant species with less than 50% of its body within the border of the quadrat was excluded from recording. Finally, the sixth column represented the estimated vegetation cover within the 0.5m by 0.5m quadrat in percentage <br>The codes used for the study to identify various species of plants within the quadrats are: - <i>Cirsium arvense</i> (Canada thistle): CT - <i>Poaceae spp</i>. (Grass): G - <i>Taraxacum officinale</i> (Dandelion): D - <i>Trifolium spp.</i> (Clovers): C - <i>Ambrosia artemisiifolia</i> (Ragweed): RW - <i>Plantago major</i> (Broadleaf Plantain): BL - <i>Digitaria sanguinalis</i> (Crabgrass): CG - <i>Oxalis stricta</i> (Yellow Wood Sorrel): YS

本数据集通过沿一条随机无遮挡的50米样线，以0.5m×0.5m样方（quadrat）在1米间隔处布设样点，共设置50个样方。调查数据以电子表格形式记录，该表格包含6列变量与50行，每一行对应一个独立样方。第一列用于记录完整调查的开展次数，本次调查仅开展1次。第二列为调查日期，为2020年9月15日13时。第三列为开展测量工作的研究人员姓名。第四列为调查点位信息：菲格罗夫公园（Firgrove Park），坐标为北纬43.7520°、西经79.5212°。第五列为每个样方内发现的不同植物物种总数，物种鉴定参考《安大略杂草图鉴（Ontario weeds gallery）》，并为各物种赋予专属编码。本研究规定，样方边界内植株体占比超过50%的物种将被计入统计，反之植株体占比不足50%的物种则不予记录。第六列为0.5m×0.5m样方内的植被盖度百分比。本研究用于识别样方内植物物种的编码规则如下：
- 加拿大蓟（Cirsium arvense）：CT
- 禾本科（Poaceae spp.）：G
- 蒲公英（Taraxacum officinale）：D
- 车轴草属（Trifolium spp.）：C
- 豚草（Ambrosia artemisiifolia）：RW
- 大车前（Plantago major）：BL
- 马唐（Digitaria sanguinalis）：CG
- 直酢浆草（Oxalis stricta）：YS