Connell Rainforest Plot Network: Tropical Rainforest Understorey Light Environment Data, Davies Creek Plot, Dinden National Park, Queensland, Australia, 2013

This data package comprises data from a series of hemispherical photographs taken in October 2013 at the Connell Rainforest Plot which is situated at Davies Creek, Dinden National Park, 25 km south west of Cairns, Queensland. The 1.7 ha plot 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 understorey 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 understorey 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.

本数据包包含2013年10月于昆士兰州凯恩斯西南25公里处的丁登国家公园戴维斯溪区域的康奈尔雨林样地（Connell Rainforest Plot）拍摄的一系列半球摄影照片的数据。该1.7公顷样地内，已对从微小幼苗到大型冠层树木的所有大小级别的树木进行了测绘并悬挂标识标签。自1963年起，研究人员便以1至6年为间隔，对该样地内的树木更新率、生长率以及死亡率开展测定并留存记录。林下植被的生长速率主要受光照条件调控。数十年间直至2002年，研究人员对大型冠层树木死亡后形成的林隙开展了多次系统性调查，并将林隙边界手绘标注在纸质地图上。这些手绘地图从未被数字化，原始存档于加利福尼亚大学（University of California）。部分后期地图的副本由拉筹伯大学（La Trobe University）的格林（Green）保管。2013年，研究团队首次使用搭载鱼眼镜头的数码相机，沿幼苗样带测定林下光照环境。作为康奈尔雨林样地网络（Connell Rainforest Plot Network）完整项目一部分的相关数据包概要，可通过以下链接获取：http://www.ltern.org.au/index.php/ltern-plot-networks/connell-rainforest。