Tree mortality in Forest and Biodiversity 2: a tree diversity experiment to understand the consequences of multiple dimensions of diversity and composition for long-term ecosystem function and resilience

The Forest and Biodiversity (FAB2) experiment uses native tree species in varying levels of species richness, phylogenetic diversity, and functional diversity planted in 100 m2 and 400 m2 plots at 1 m spacing, appropriate for testing long-term ecosystem consequences. FAB2 was designed and established in conjunction with a prior experiment (FAB1) in which the same set of twelve species was planted in 16 m2 plots at 0.5 m spacing. Both are adjacent to the BioDIV prairie-grassland diversity experiment, enabling comparative investigations of diversity and ecosystem function relationships between experimental grasslands and forests at different planting densities and plot sizes. This data package examines mortality in the first six years of the experiment.

森林与生物多样性（Forest and Biodiversity, FAB2）实验选取物种丰富度、系统发育多样性与功能多样性梯度各异的本土树种，以1米株距种植于100平方米与400平方米的样地中，该实验设计适配长期生态系统效应的检验。FAB2与前期实验FAB1联合设计并建立：在FAB1实验中，同一组共12个树种以0.5米株距种植于16平方米样地内。两项实验均毗邻BioDIV草原多样性实验平台，可为开展不同种植密度与样地规模下的实验性草原与森林之间的多样性-生态系统功能关联对比研究提供条件。本数据集聚焦该实验开展前六年的树木死亡率情况。