Decomposition and nutrient dynamics of stumps and coarse roots of Eucalyptus plantations in southern China

This study aimed to (1) quantify the stocks of biomass and nutrients from <em>Eucalyptus</em> stumps and coarse roots along a chrono-sequence of 0–6-year-old clear-cutting stands and (2) estimate the loss rate of biomass and nutrients, as well as the nutrient dynamics of stumps and coarse roots, to elucidate (1) if the biomass of coarse roots is higher than that of stumps and (2) if there is faster decomposition and nutrient loss rate from stumps from than coarse roots. <strong><em>Conclusion:</em></strong> Stumps and coarse roots serve as significant nutrients stocks that decay at varying rates. The loss of nutrients must be considered while analyzing the decomposition dynamics following clear-cutting in <em>Eucalyptus</em> plantations. This dataset is related to a research paper submitted to Annals of Forest Science.本研究旨在（1）量化0~6年生皆伐林分时间序列下桉树（Eucalyptus）伐桩与粗根的生物量及养分储量，（2）估算生物量与养分的损失速率，以及伐桩和粗根的养分动态；同时阐明两项科学问题：（1）粗根生物量是否高于伐桩，（2）伐桩的分解与养分损失速率是否快于粗根。**结论：** 伐桩与粗根是重要的养分储量库，其分解速率存在差异。在分析桉树人工林皆伐后的分解动态时，必须将养分流失过程纳入考量。本数据集关联一篇投稿至《森林科学年鉴》（Annals of Forest Science）的研究论文。