Annual soil respiration under experimental drought and warming at Clocaenog forest (1999-2016)

The data consists of annual values of soil respiration for plots subjected to climate change manipulations between 1999 and 2016. Data were collected from the climate change field site Climoor that is located in Clocaenog forest, Northeast Wales. The experimental field site consists of three untreated control plots (Plots 3, 6 and 9), three plots where the plant canopy air is artificially warmed during night time hours (Plots 1, 2 and 7) and three plots where rainfall is excluded from the plots at least during the plant growing season (March to September, Plots 4, 5 and 8). Annual soil respiration values were calculated from fortnightly measurements of soil respiration. Soil respiration, milligrammes of Carbon dioxide - C per square metre per hour (mg CO2-C m-2 hr-1) was measured in the same pre-installed opaque soil collars. An infra-red gas analyser was used to measure the Carbon dioxide efflux. Annual soil respiration was calculated as sum of seasonal Carbon dioxide emissions. The Climoor field experiment intends to answer questions regarding the effects of warming and drought on ecosystem processes. Plot level soil respiration measurements are important to investigate soil carbon dynamics and changes in soil carbon cycling and storage under the imposed climatic treatments. More detailed information about the field site, measurements and related datasets can be found in the supporting documentation.

本数据集收录了1999年至2016年间，受气候变化操控的土壤呼吸年值数据。数据采集自位于威尔士东北部Clocaenog森林的气候变化野外研究站Climoor。该实验研究站包含三个未处理的对照组地块（地块3、6和9），三个在夜间人工增温植物冠层空气的地块（地块1、2和7），以及三个在植物生长季节（三月至九月）至少排除降雨的地块（地块4、5和8）。土壤呼吸年值是根据土壤呼吸的半月测量值计算得出的。土壤呼吸，以每平方米每小时碳氧化二气（mg CO2-C m-2 hr-1）的毫克数进行测量，测量工具为预先安装的不透明土壤套环。使用红外气体分析仪测量二氧化碳的释放。年度土壤呼吸值通过季节性二氧化碳排放的总和来计算。Climoor野外实验旨在探究增温和干旱对生态系统过程的影响。地块级别的土壤呼吸测量对于研究在施加的气候处理下土壤碳动态变化以及土壤碳循环和储存的改变具有重要意义。关于野外研究站、测量及相关数据集的更详细信息，可在支持文档中找到。