Inferring the effects of sink strength on plant carbon balance processes from experimental measurements

This folder consists of existing dataset from the container volume experiment which was carried out at the Hawkesbury Forest Experiment site (33°37'S 150°44'E) in Richmond, NSW, Australia. The site and experimental setup have been explained in detail by Campany et al. (2017). <br>In brief, 20 weeks old Eucalyptus tereticornis seedlings in tube stock were chosen from a single local Cumberland plain cohort. Ten additional seedlings of similar age and growth were harvested to measure initial leaf area and dry mass of leaves, stems and roots. A total of 49 Eucalyptus tereticornis seedlings were grown in a range of container sizes (5 L to 35 L) in field conditions, using freely-rooted seedlings as a control for the container size treatments, with the goal to examine how the C balance of the plants are affected to belowground sink limitations. Six container sizes were used with each container experiment had a complete replicate set of six container volumes along with a free seedling. Similar notations are used here as Campany et al. (2017) for the treatments in different pots as 5 L, 10 L, 15 L, 20 L, 25 L and 35 L in respect of their pot sizes. The experiment tracked leaf-level gas exchange, leaf carbohydrate accumulation and seedling allometry over the course of 4 months for all 7 treatments.

本文件夹包含澳大利亚新南威尔士州（New South Wales, NSW）里士满市霍克斯伯里森林试验站点（33°37'S 150°44'E）开展的容器容积试验的现有数据集。该试验站点与实验设置的详细说明可参见Campany等人（2017）的研究。
简言之，试验选取了来自当地坎伯兰平原单一同生群的20周树龄容器苗细叶桉（Eucalyptus tereticornis）幼苗。另选取10株树龄、长势相近的幼苗进行收割，以测定初始叶面积以及叶片、茎秆和根系的干重。共计49株细叶桉幼苗在野外条件下种植于容积范围为5升至35升的一系列容器中，以自由生根幼苗作为容器容积处理的对照，旨在探究植物碳平衡如何受地下汇限制的影响。本次试验共设置6种容器容积，每个容器试验组均包含6种容器容积的完整重复组以及1株自由生根幼苗。本研究沿用Campany等人（2017）的命名规则，根据花盆容积将不同处理分别记为5 L、10 L、15 L、20 L、25 L和35 L。本试验在4个月的周期内，对全部7种处理组的叶片气体交换、叶片碳水化合物积累以及幼苗异速生长情况进行了跟踪监测。