Siberian boreal forest energy balance (ViPER (Vegetation Impacts on Permafrost) project), Cherskiy, Sakha Republic, Russia, 2016 - 2017

Energy balance dynamics in two stands of a Siberian larch forest located in the continuous permafrost zone near the Northeastern Science Station. Data are related to measures of radiative forcing, above- and below-ground micro-meteorological variables, ground heat flux, and sap flow measurements of tree transpiration. The dominant and only tree species is Larix cajanderi. The stands represent a high and low density forest and are located in the same fire scar and burned approximately 75 years ago. Mean tree age is 48 years old in both stands. Additional data includes root density measurements across two years, permafrost thaw depth, and soil characteristics. Tree allometry data is also included to facilitate scaling of sap flux measurements. The data is collected in association with the ViPER (Vegetation Impacts on Permafrost) project. The objective of this project is to examine the impacts of vegetation and ecosystem properties on active layer and permafrost thermal dynamics in order to better understand the vulnerability of permafrost to climate change.

本数据集聚焦于东北科学站附近连续多年冻土带（continuous permafrost zone）内两片西伯利亚落叶松林分的能量平衡动态。数据集涵盖辐射强迫（radiative forcing）、地上与地下微气象变量（micro-meteorological variables）、土壤热通量（ground heat flux）以及树木蒸腾液流（sap flow）的观测数据。该研究区域的优势且唯一乔木树种为卡氏落叶松（Larix cajanderi）。两片林分分别为高密度与低密度林分，且均坐落于同一火烧迹地内，火灾发生时间约为75年前，两片林分的平均树木年龄均为48年。附加数据集包含两年间的根系密度观测、多年冻土融化深度以及土壤特性（soil characteristics）数据。本数据集同时提供树木异速生长（allometry）数据，以辅助液流观测数据的尺度转换。本数据集关联于ViPER（Vegetation Impacts on Permafrost）项目，该项目的研究目标为探究植被与生态系统属性对活动层（active layer）及多年冻土热动态的影响，进而深化对多年冻土在气候变化背景下脆弱性的认知。