Measuring biomass and carbon stock in resprouting woody plants

Resprouting multi-stemmed woody plants form an important component of the woody vegetation in many ecosystems, but a clear methodology for reliable measurement of their size and quick, non-destructive estimation of their woody biomass and carbon stock is lacking. Our goal was to find a minimum number of sprouts, i.e., the most easily obtainable, and sprout parameters that should be measured for accurate sprout biomass and carbon stock estimates. Using data for 5 common temperate woody species, we modelled carbon stock and sprout biomass as a function of an increasing number of sprouts in an interaction with different sprout parameters. The mean basal diameter of only two to five of the thickest sprouts and the basal diameter and DBH of the thickest sprouts per stump proved to be accurate estimators for the total sprout biomass of the individual resprouters and the populations of resprouters, respectively. Carbon stock estimates were strongly correlated with biomass estimates, but relati...多茎萌生性木本植物是众多生态系统中木本植被的重要组成部分，但目前尚缺乏能够可靠测定其个体大小，以及快速、无损估算其木质生物量与碳储量的标准化方法。本研究旨在确定最少需测量的萌枝数量（即最易获取的萌枝）及相关萌枝参数，以实现对萌枝生物量与碳储量的精准估算。我们利用5种常见温带木本植物的数据集，以萌枝数量递增并结合不同萌枝参数的交互效应为自变量，构建了碳储量与萌枝生物量的预测模型。仅选取2~5株最粗壮的萌枝计算其平均基径，以及每株伐桩上最粗壮萌枝的基径与胸径（DBH），分别可精准估算单个萌生植株与萌生种群的总萌枝生物量。碳储量估算结果与生物量估算结果呈显著相关，但相关...