Lianas significantly reduce tree performance and biomass accumulation across tropical forests: a global meta-analysis

Data to conduct three-level mixed effect meta-analytic models to determine the direction and magnitud of the effect of lianas on tree growth, growth, biomass accumulation, reproduction, mortality, leaf water potential, sap flow velocity in ecological, silvicultural and logging studies. ID = unique number per published liana removal experiment; Year = year of publication; Author = author/s that published liana removal experiment; Category = Ecological, Silvicultural, Logging; GrowthRed = studies that assessed growth reduction due to lianas; Mortality = studies that assessed increased in mortality due to lianas; TreeDiversity = studies that assessed changes in tree diversity due to lianas; Reproduction = studies that assessed reduction in reproduction due to lianas; BiomassAcum = studies that assessed changes in biomass accumulation due to lianas; Opennes = studies that assessed changes in canopy openness due to liana removal; Recruitment = studies that assessed changes in recruitment due to lianas; LeafWaterPotential = studies that assessed changes in leaf water potential potential after liana removal; SapFlow = studies that assessed changes in sap flow after liana removal; LAI-PAI = studies that assessed changes in leaf area index or plant area index due to liana removal; TimeEffect = number of days from liana removal to reported effect; Country = country where liana removal experiment was performed; Holdridge = Life Zone according to Holdrigde 1964; MAP = mean annual precipitation; Elevation = in meters above sea level; MeanExp1 = mean effect of manipulation where lianas were removed; MeanControl1 = mean effect of the control where lianas were not removed; STDEVPool = pooled standard deviation from manipulation and control; SDExp = standard deviation from manipulation where lianas were removed; SDCont = standard deviation from control where lianas were not removed; NExp = sample size for liana removal treatment; NCont = sample size for control treatment; Ntotal = sum of sample sizes from both treatments; TimeSteps = number of times removals and controls experiment were measured through time.

本数据集用于构建三级混合效应元分析模型，以明确藤本植物（liana）对树木生长、生物量积累、繁殖、死亡率、叶水势、树干液流速率的影响方向与效应量，研究范畴涵盖生态学、营林学与采伐学领域。各字段说明如下：
ID：每篇已发表藤本去除试验的唯一编号；
Year：论文发表年份；
Author：藤本去除试验相关论文的作者；
Category：研究类别，分为生态学、营林学、采伐学三类；
GrowthRed：评估藤本导致树木生长减缓的研究条目；
Mortality：评估藤本导致树木死亡率升高的研究条目；
TreeDiversity：评估藤本对树木多样性产生影响的研究条目；
Reproduction：评估藤本导致树木繁殖能力下降的研究条目；
BiomassAcum：评估藤本对生物量积累产生影响的研究条目；
Opennes：评估藤本去除后林冠开度变化的研究条目；
Recruitment：评估藤本对树木更新补充量产生影响的研究条目；
LeafWaterPotential：评估藤本去除后叶片水势变化的研究条目；
SapFlow：评估藤本去除后树干液流速率变化的研究条目；
LAI-PAI：评估藤本对叶面积指数（LAI）或植物面积指数（PAI）产生影响的研究条目；
TimeEffect：从实施藤本去除到报道观测效应的天数；
Country：藤本去除试验开展所在国家；
Holdridge：基于1964年Holdridge生命地带分类系统划定的生命地带；
MAP：年平均降水量；
Elevation：海拔高度（单位：米，以海平面为基准）；
MeanExp1：藤本去除处理组的平均效应量；
MeanControl1：未进行藤本去除的对照组平均效应量；
STDEVPool：处理组与对照组的合并标准差；
SDExp：藤本去除处理组的标准差；
SDCont：未进行藤本去除的对照组的标准差；
NExp：藤本去除处理组的样本量；
NCont：对照组的样本量；
Ntotal：处理组与对照组的总样本量；
TimeSteps：随时间对处理组与对照组进行重复测量的次数。