Responses of plant diversity to precipitation change are strongest at local spatial scales and in drylands

Log response ratios of species richness (LRR S) and effective number of species SPie (LRR_SPie) at the plot, turnover and site scale. Given are covariates included in the analysis (MAP = mean annual precipitation, PET = potential evapotranspiration, delta.P = magnitude of precipitation manipulation) and study characteristics (latitude = latitude of the experiment, longitude = longitude of the experiment, study = name of the study, site = name of the site, SiteBlock = combination of site and block, replicate = replicate number, treatment.direction = direction of the precipitation manipulation, grouping.x = combination of variables, treatment.duration.y = treatment duration in years, size.local = plot size at the local scale, size.gamma = plot size at the site scale , N.replicates = number of replicates per experimental treatment). <br>

本数据集包含样地、周转及样点尺度下的物种丰富度对数响应比（LRR_S）与有效种数SPie对数响应比（LRR_SPie）。本次分析纳入的协变量包括：年平均降水量（mean annual precipitation, MAP）、潜在蒸散量（potential evapotranspiration, PET）以及降水调控幅度（delta.P）；研究特征参数涵盖实验纬度（latitude）、实验经度（longitude）、研究名称（study）、样点名称（site）、样点-样方组合（SiteBlock）、重复编号（replicate）、降水调控方向（treatment.direction）、变量组合（grouping.x）、处理年限（treatment.duration.y，单位：年）、局域尺度样地面积（size.local）、样点尺度样地面积（size.gamma）以及单次实验处理的重复数（N.replicates）。