Variability in tree water uptake determined with stable water isotopes in an African tropical montane forest

Dataset supporting the study <strong>Variability in tree water uptake determined with stable water isotopes in an African tropical montane forest.</strong> We investigated relative contributions of different soil depths to tree water uptake of 83 trees and possible species-specific differences in a 50x50 m forest plot at four dates in a tropical montane forest in Kenya using stable water isotopes and the Bayesian mixing model framework MixSIAR. The dataset contains raw isotope data of tree xylem, soil and throughfall water sampled on different dates in a tropical montane forest in Kenya as well as interpolated model input data for the Bayesian mixing model. Further information can be found in the soon to be published article in Ecohydrology.本数据集支撑题为《非洲热带山地森林中基于稳定水同位素（stable water isotopes）的树木水分吸收变异特征》的研究。本研究于肯尼亚一处热带山地森林的50×50米样地内，于4个采样日期下，针对两项核心内容展开探究：一是不同土壤深度对83株树木水分吸收的相对贡献，二是潜在的物种特异性差异，研究采用了稳定水同位素技术与贝叶斯混合模型框架MixSIAR。本数据集包含肯尼亚热带山地森林不同采样日期下采集的树木木质部（xylem）水、土壤水与林冠穿透水（throughfall water）的原始同位素数据，同时还包含贝叶斯混合模型所需的插值模型输入数据。更多详细信息可参阅即将在《生态水文学》（Ecohydrology）期刊发表的相关研究论文。