Duke Forest FACE (FACTS-I): Meteorological and Soil Data

This dataset, collected from Duke Forest Free Air CO2 Enrichment (FACE) – Forest-Atmosphere Carbon Transfer and Storage (FACTS-I) experiment, includes variables describing the meteorological conditions above canopy, within canopy, and soil depending on the variable. The Duke FACE experiment was located in a loblolly pine (Pinus taeda L.) plantation established in 1983. Naturally regenerated broadleaved species including sweetgum (Liquidambar styraciflua L.) and tulip poplar (Liriodendron tulipifera L.), mostly in the overstory, and winged elm (Ulmus alata Michx.) and red maple (Acer rubrum L.) were common in the understory. The FACE experiment commenced with two plots (plots 7-8) in 1994 (Oren et al. 2001), with six additional plots (plots 1-6) coming online on 27 August 1996. The CO2 enrichment was terminated on 31 October 2010 and post-enrichment data collection continued through 2012. Complete fertilization was applied annually to half of plots 7-8 from 1998 to 2004. The nutrient addition experiment expanded to half of plot 1-6 with a common protocol of N-fertilization in 2005. N-fertilization continued until 2012. The data range varied by sensor availability. A summary of information about variable name and data range can be found in the ‘FileDescription_[variable_name].txt’ files.本数据集采集自杜克森林自由大气CO₂富集（Duke Forest Free Air CO2 Enrichment, FACE）——森林-大气碳转移与存储（Forest-Atmosphere Carbon Transfer and Storage, FACTS-I）实验，涵盖依变量类型分类的冠层上方、冠层内部及土壤的气象条件相关变量。杜克FACE实验设置于1983年营建的火炬松（Pinus taeda L.）人工林内。林分中天然更新的阔叶树种分布广泛：上层林冠常见枫香（Liquidambar styraciflua L.）与北美鹅掌楸（Liriodendron tulipifera L.），下层林冠则以翅榆（Ulmus alata Michx.）和红枫（Acer rubrum L.）为常见物种。该实验于1994年率先启动2个样地（7号、8号样地，Oren等，2001），另有6个补充样地（1-6号样地）于1996年8月27日正式投入运行。CO₂富集处理于2010年10月31日终止，后续的富集后数据采集工作持续至2012年。1998年至2004年，研究人员每年对7-8号样地的半数区域施加完全肥料。2005年，养分添加实验扩展至1-6号样地的半数区域，采用统一的氮肥施加方案，且氮肥添加作业持续至2012年。本数据集的覆盖范围因传感器可用性存在差异，关于变量名称与数据范围的详细汇总信息，可查阅`FileDescription_[variable_name].txt`文件。

搜集汇总

背景与挑战

背景概述

该数据集来自杜克森林自由大气CO2富集实验（FACTS-I），包含冠层上方、冠层内及土壤的气象和土壤变量数据，用于研究CO2富集对森林生态系统的影响。实验于1994年启动，2010年结束CO2处理，数据收集延续至2012年，期间进行了施肥实验，数据范围因传感器而异，详细信息在相关文件中。数据集专注于长期环境监测，适用于气候变化和森林生态研究。