Macquarie Is. Azorella dieback 5m x 5m quadrats 2008-2012

This data set comprises data on Azorella macquariensis dieback from four summer seasons at a range of sites across Macquarie Island: 2008-09, 2009-10, 2010-11, 2011-12. Data on the proportion of healthy and dead or dying Azorella was collected from a 5 x 5m quadrat at each site. In some years data on the health of moss in the quadrats is also provided. The file is in the form of an Excel workbook with a separate worksheet for each year.In addition there are photographs of the sites spanning up to 4 years 2008-09 to - 2011 -12. Most photographic suites contain a North West and a South East site photographs and most are within 5- 10 m of the GPS point for the site. The site codes identify the 5 x 5m quadrats.

本数据集收录麦夸里岛（Macquarie Island）多个样点在2008-09、2009-10、2010-11、2011-12四个夏季的麦夸里芹盖草（Azorella macquariensis）枯衰相关数据。每个样点均通过5×5米样方采集健康、死亡或濒死的麦夸里芹盖草占比数据；部分年份还同步提供了样方内苔藓的健康状况数据。数据集以Excel工作簿格式存储，各年度对应独立工作表。此外，本数据集还包含2008-09至2011-12年间最多4个年份的样点实拍照片。多数摄影组包含西北向与东南向的样点照片，且拍摄位置大多距离样点GPS点位5至10米范围内。样点编码用于标识对应的5×5米样方。