Effects of reduced precipitation and advanced spring phenology on intra- and interspecific competition between beech, oak and linden saplings

This repository contains physiological (leaf δ¹³C, nitrogen),
phenological, and growth data from three temperate deciduous tree saplings
grown in mesocosms under drought, warmer winters, or combined treatments.
Saplings were cultivated in monocultures or two-species mixtures.
Measurements span two growing seasons (2022–2023), including spring and
autumn phenology, summer physiology (June/August), and growth assessments
during winter.