Elevation and shade interact to affect survival and growth of native tree seedlings in an Andean forest restoration field experiment

Andean tropical montane forests are increasingly threatened by human activities and global environmental change. Restoration efforts are limited by insufficient understanding of the factors that influence native seedling establishment during the early stages of restoring degraded exotic pasturelands. Although elevation, light incidence, and competition with exotic grasses have been pointed out as barriers to forest recovery in tropical montane regions, the performance of native tree species in grasslands—and their response to variation in these environmental factors—varies greatly. Here, we conducted a field experiment to evaluate the effects of shade cover and mowing on the initial survival and growth of native tree species with contrasting elevational distributions across the Andean region. We planted seedlings of five species in three degraded pasture sites dominated by exotic grasses along a 900-m elevational gradient, using a full-factorial design with shade cover and mowing treatm..., , # Data from: Elevation and shade interact to affect survival and growth of native tree seedlings in an Andean forest restoration field experiment

Dataset DOI: [10.5061/dryad.k0p2ngfpb](https://doi.org/10.5061/dryad.k0p2ngfpb)

## Description of the data and file structure

This dataset contains information on survival and relative growth rates (height and basal diameter) recorded in the study by Marín et al. (2026). The data were collected from a field experiment designed to evaluate the effects of shade cover and mowing on the initial survival and growth of native tree species with contrasting elevational distributions across the Andean region. Seedlings of five species were planted at three degraded pasture sites dominated by exotic grasses along a 900 m elevational gradient, following a full-factorial design with shade cover and mowing treatments replicated in eight blocks per site. Over a 17-month period, the survival and relative growth rates (height and basal diameter) of each tr..., ,

安第斯热带山地森林正日益受到人类活动与全球环境变化的威胁。在退化外来牧场的早期修复阶段，由于对影响本地幼苗定植的相关因素认知不足，森林修复工作的推进受到极大限制。尽管海拔、光照入射率以及与外来草本植物的竞争已被指出是热带山地地区森林恢复的阻碍因素，但不同本地树种在草地生境中的生长表现，以及它们对这些环境因子变化的响应模式仍存在显著差异。本研究开展了一项野外实验，以评估遮阴（shade cover）与刈割（mowing）处理对安第斯区域内不同海拔分布型本地树种初始存活与生长的影响。研究人员沿900米海拔梯度，在3个以外来草本植物为主的退化牧场样地中种植了5个树种的幼苗，采用全因子实验设计（full-factorial design），设置遮阴与刈割两种处理，每个样地设置8个重复区组……

# 数据来源：《海拔与遮阴交互影响安第斯森林修复野外实验中本地树苗的存活与生长》
数据集DOI：[10.5061/dryad.k0p2ngfpb](https://doi.org/10.5061/dryad.k0p2ngfpb)

## 数据与文件结构说明
本数据集包含Marín等人（2026）的研究中记录的幼苗存活率与相对生长率（relative growth rates，株高和基径（basal diameter））数据。该数据源自一项旨在评估遮阴与刈割处理对安第斯区域内不同海拔分布型本地树种初始存活与生长影响的野外实验。研究人员沿900米海拔梯度，在3个以外来草本植物为主的退化牧场样地中种植了5个树种的幼苗，采用全因子实验设计，每个样地设置8个重复区组，施加遮阴与刈割处理。在为期17个月的监测周期内，对每株树苗的存活率及相对生长率（株高与基径）进行了记录……