Tian Ye, Liu Yang, Fang Shengzuo, Yue Jia, Xu Xizeng
College of Forestry, Nanjing Forestry University, Nanjing 210037, China.
Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China.
Data Brief. 2021 Jan 4;34:106711. doi: 10.1016/j.dib.2020.106711. eCollection 2021 Feb.
The dataset reported data of survival rate, growth performance, branching architecture derived from 107 different poplar clones, including 104 introduced poplar clones () and 3 local extended poplar clones, measured within a long-term field experiment in lowland plantations in China. After 24 growing seasons from 1992 to 2015, the suvival rate for all the 107 clones, and tree height, diameter at breast-height (1.3 m), and tree volume of each tree were measured and calculated for all the 107 clones, in total of 301 alive trees (one to 9 trees for each clone), in three replicated plots. Subsequently, a total of 17 potential clones were selected by approximately 15% selection intensity, and 17 sample trees (one mean tree for each clone) were harvested for the investigation of the branching number, branching angle and base diameter of first-order branches. For the interpretation of the results of this experiment the readers are referred to Ref. [1]. The data presented in this article will aid selection of superior poplar clones for study and future applications in the similar lowland sites. The data on the suvival rate and growth performance of 107 poplar clones can help farmers and breeders to designing optimal schemes to increase timber yield and log assortment in poplar plantations. Raw data on tree structure parameters and branching traits can be used to evaluate the different performance of the clones, testing their different spacing and rotation requirement, and also designing innovative plantation schemes.
该数据集报告了107个不同杨树无性系的存活率、生长性能和分枝结构数据,其中包括104个引进杨树无性系()和3个本地推广杨树无性系,这些数据是在中国低地种植园的一项长期田间试验中测得的。从1992年到2015年经过24个生长季节后,测量并计算了所有107个无性系的存活率,以及所有107个无性系中每棵树的树高、胸径(1.3米处)和材积,在三个重复样地中共有301棵存活树木(每个无性系1至9棵树)。随后,以约15%的选择强度总共选择了17个潜在无性系,并砍伐了17棵样树(每个无性系一棵平均树),以调查一级分枝的分枝数、分枝角度和基部直径。关于本实验结果的解释,请读者参考参考文献[1]。本文提供的数据将有助于选择优良杨树无性系,以便在类似的低地地区进行研究和未来应用。107个杨树无性系的存活率和生长性能数据可以帮助农民和育种者设计最佳方案,以提高杨树人工林的木材产量和原木分类。树木结构参数和分枝性状的原始数据可用于评估无性系的不同性能,测试它们不同的间距和轮伐要求,还可用于设计创新的种植方案。