Connell Rainforest Plot Network: Subtropical Rainforest Understorey Light Environment Data, O'Reilly's Plot, Lamington National Park, Queensland, Australia, 2013+

This data package comprises data from a series of hemispherical photographs taken in July 2013 and May 2015 at the Connell Rainforest Plot near O’Reilly’s Guest House, 85 km south of Brisbane, Queensland. The 2.0 ha site consists of separate 1.0 ha plots separated by 600 m, but they have always been treated as a single entity. The site consists of mapped and tagged trees in all size classes from tiny seedlings to large canopy trees. Rates of recruitment, growth and mortality have been measured at intervals of 1-6 years with records extending back to 1963.

The primary determinant of growth rate in the understory is light. Gaps created by the death of large canopy trees have been systematically surveyed many times over the decades until 2002, with the boundaries of the gaps being noted on hand drawn maps. These maps have never been digitized, and the originals are held at the University of California. Copies of some later maps are held by Green at La Trobe University. A digital camera with a fish-eye lens was used for the first time in 2013 to measure understory light environments along the seedling transects. A synopsis of related data packages which have been collected as part of the Connell Rainforest Plot Network’s full program is provided at http://www.ltern.org.au/index.php/ltern-plot-networks/connell-rainforest.

本数据集包含2013年7月与2015年5月在昆士兰州布里斯班以南85公里处奥赖利宾馆附近的康奈尔雨林样地（Connell Rainforest Plot）采集的一系列半球摄影照片（hemispherical photographs）数据。该样地总面积2.0公顷，由两块间隔600米的独立1.0公顷样地组成，但长期以来均被视为一个整体研究单元。样地内包含从微型幼苗到大型冠层乔木的所有大小等级的已测绘并标记的树木。种群更新、生长与死亡率的监测间隔为1至6年，相关记录可追溯至1963年。
林下植被生长速率的核心影响因子为光照条件。大型冠层树木死亡形成的林窗（gap）在2002年前的数十年间已被多次系统调查，林窗边界均标注于手绘地图中。这些地图从未被数字化，原件存档于加利福尼亚大学；部分后期地图的副本由格林（Green）存档于拉筹伯大学。2013年首次使用搭载鱼眼镜头（fish-eye lens）的数码相机沿幼苗样带（seedling transects）测定林下光照环境。康奈尔雨林样地网络（Connell Rainforest Plot Network）完整计划下采集的相关数据集概要可通过以下链接获取：http://www.ltern.org.au/index.php/ltern-plot-networks/connell-rainforest。