Vegetation Data, Direct Measure of Stems, Warra Tall Eucalypt SuperSite, Core 1 ha, 2012-2016

The dataset comprises measurements of all stems (dead or alive) >10cm dbh in the “New” Core 1-ha plot at the Warra Supersite done according to the Supersite vegetation monitoring protocols (Australian Supersites Network, 2015). The dataset includes measurements of location within the core 1-ha plot, plant taxon, diameter, status (dead or alive). Height measurements are derived from a variety of methods including direct measurement and predictions based on height – diameter regressions from a measured sample of trees.

The data came from two measurement campaigns. The first done in June 2012 was in the original Core 1ha plot at Warra. The second done in October 2013 was in a 0.6 ha (60 x 100m) extension to the western boundary of the original 1-ha plot. The 0.6 ha extension was installed to allow the creation of a “new” 1 ha Core plot in undisturbed forest within the footprint of the Warra Flux Tower. The “new” 1-ha Core Plot dataset comprises the 0.6 ha extension and the western-most 0.4 ha (40 x 100m) of the original plot.

The dataset updates an earlier version (Vascular Plant Data, Direct Measure of Stems, Warra Tall Eucalypt SuperSite, 2013-2015) by including the measurements for two Eucalyptus obliqua trees that had not been measured in the initial measurement campaigns.

Reference:
Australian Supersites Network (2015) Supersite Vegetation Monitoring Protocols. Version 1.1.6. The Australian Supersites Network, Terrestrial Ecosystem Research Network, Australia. http://dx.doi.org/10.4227/05/56134C1310F16

本数据集收录了沃拉超级站点（Warra Supersite）“新”1公顷核心样地内所有胸径（dbh）大于10cm的林木（死木或活木）的测量数据，所有测量工作均严格遵循《超级站点植被监测规程》（澳大利亚超级站点网络，2015）开展。数据集涵盖样地内的空间位置信息、植物分类单元、胸径以及植株状态（存活或死亡）。树高测量数据源自多种方法，包括直接实测以及基于实测树木样本构建的树高-胸径回归模型得到的预测值。

该数据来源于两次野外调查：第一次为2012年6月，调查范围为沃拉站点原始1公顷核心样地；第二次为2013年10月，调查范围为原始样地西侧边界延伸出的0.6公顷（60×100m）区域。增设该0.6公顷延伸区域，旨在在沃拉通量塔（Flux Tower）影响范围内的未受干扰森林中构建“新”1公顷核心样地。“新”1公顷核心样地的数据集由该0.6公顷延伸区域与原始样地最西侧的0.4公顷（40×100m）区域共同组成。

本数据集更新了早期版本（《维管植物数据：林木直接测量数据，沃拉高大桉类超级站点，2013-2015》），新增了两次初始调查中未被测量的2株斜叶桉（Eucalyptus obliqua）的测量数据。

参考文献：
澳大利亚超级站点网络（2015）《超级站点植被监测规程》，版本1.1.6。澳大利亚超级站点网络，陆地生态系统研究网络，澳大利亚。http://dx.doi.org/10.4227/05/56134C1310F16