Log Decomposition Dynamics in Interior Alaska 3 - Disk Data

The entire dataset (all 7 files) contains detailed information on a time series study of log decomposition in interior Alaska. The species studied include white and black spruce, aspen, birch, balsam poplar and aspen starting as green trees. In addition white and black spruce in recently burned sites are included. The study was designed to produce a time series of log decomposition measurements over the next 100 years. The information to be measured on the logs includes weight and density changes over specified time periods, changes in nutrient concentrations, and hemicellulose, cellouse, and lignin concentrations, and changes in the quantity of nutrients and hemicellulose, cellouse and lignin. (This file contains the sample disk physical measurement data for the log decomposition study.)本完整数据集（共7个文件）涵盖阿拉斯加内陆原木分解（log decomposition）时间序列研究的详细信息。本次研究涉及的树种包括白云杉（white spruce）、黑云杉（black spruce）、颤杨（aspen）、桦木（birch）、香脂杨（balsam poplar），以及初始状态为活立木的颤杨。此外，数据集还纳入了近期过火林地中的白云杉与黑云杉样本。本研究旨在构建未来100年内原木分解动态的时间序列监测数据集。原木的测定指标包括：特定时段内的重量与密度变化、养分浓度（nutrient concentrations）变化，以及半纤维素（hemicellulose）、纤维素（cellulose，原文误写为cellouse）与木质素（lignin）的浓度变化；同时涵盖养分、半纤维素、纤维素与木质素的储量变化。（本文件包含原木分解研究中试样圆盘物理测定数据（sample disk physical measurement data）。）