Danby grasslands dataset of milkweeds using transects

The dataset was conducted at the Danby grassland at York University Keele Campus on Tuesday September 22 2015. The study took place during the approximate time of 2:30pm to 3:30pm. At the time of collection the temperature was 21 °C, with no clouds in the sky and some moisture in the soil. This study was conducted by Ecology students, which included myself, Katie, Katherine, Ava and Ashley. A transect tape was randomly placed on the grassland where Asclepias syriaca (milkweeds) were observed. The transect was 668 inches long and had a radius of approximately 39 inches (1m) on either side of the transect tape. Once a milkweed was spotted within the designated area a member of the team would count the leaves on the plant while height and distanced between the closest milkweed was measured. Once this data was collected we gave the crowdedness a number within the scale of 0-3 within a 50cm parameter (0 being next to no crowding, to 3 being crowded, see metadata for greater detail on scale). This process was repeated until 50 milkweeds along the transect line where documented.本数据集的采集工作于2015年9月22日（周二）在约克大学基尔校区丹比草原（Danby grassland at York University Keele Campus）开展，采集时段为当日下午2:30至3:30左右。采集时的气温为21℃，天空无云，土壤湿度适中。本研究由生态学专业学生团队完成，参与人员包括我本人、凯蒂（Katie）、凯瑟琳（Katherine）、艾娃（Ava）与阿什利（Ashley）。研究人员将样带卷尺随机布设至发现马利筋（Asclepias syriaca，milkweeds）的草原区域。该样带总长668英寸，样带两侧各延伸约39英寸（1米）作为样方范围。当在指定样区内发现马利筋植株时，团队成员需统计该植株的叶片数量，并测量其株高以及与邻近马利筋植株间的距离。完成上述数据采集后，需在50厘米的参数范围内，以0至3的等级对该植株的拥挤程度赋值：0代表几乎无拥挤，3代表高度拥挤，具体等级划分细节可参见元数据。上述流程重复进行，直至沿样带记录到50株马利筋植株为止。