Aspen (Populus tremuloides Michx.) and black spruce (Picea mariana Mill.) soil incubation decomposition data (mesocosm study)@en

To test the effect of biodiversity on decomposition and enzyme activities, quaking aspen (Populus tremuloides Michx.) and black spruce (Picea mariana Mill.) litter was inoculated with mixtures of one, two, four, or eight fungi from a pool of 16 fungi that had been isolated from a boreal forest in Alaska. Total CO2 release and the activities of b-glucosidase, which targets cellulose, and polyphenol oxidase, which targets lignin and other recalcitrant phenolic compounds, were observed across the range of species numbers in the mixtures.为探究生物多样性对凋落物分解过程及酶活性的调控效应，本实验将颤杨（*Populus tremuloides* Michx.）与黑云杉（*Picea mariana* Mill.）的凋落物，接入从阿拉斯加寒带森林分离获得的16株真菌菌群库中的单菌株、双菌株、四菌株或八菌株混合菌群。随后，在各真菌物种丰富度梯度的混合菌群体系中，测定了总CO₂释放量，以及靶向纤维素的β-葡萄糖苷酶（β-glucosidase）和靶向木质素与其他难降解酚类化合物的多酚氧化酶（polyphenol oxidase）活性。