SSHCZO -- Soil Gas -- Garner Run (Sandstone Forested) -- (2015-2015)

The specific objectives of this experiment are to quantify variation in soil pCO2 and oxygen concentration at varying topographical positions in the two lithologies. The respiration and oxygen production in the soil will vary with microbial population and community. Eosense (previously Forerunner) CO2 concentration probes (eosGP) were used to measured in-situ soil CO2 concentration. Apogee Instruments oxygen sensors (SO-110) were used to measure in-situ soil oxygen concentration (%O2). Sensors were calibrated according to company documentation with site specific information. Sensors were deployed at two depths into soil pits at midslope location on opposite slopes. Sensors were wired to Campbell Scientific dataloggers with a program developed to measure the CO2 and O2 concentrations every hour and average every day.

本实验的具体目标在于量化不同地质层位中土壤pCO2及氧气浓度的变化。土壤中的呼吸作用与氧气产生将随微生物群落和种群的不同而有所差异。本研究采用了Eosense（原名Forerunner）二氧化碳浓度探头（eosGP）来测量原位土壤二氧化碳浓度。同时，Apogee Instruments氧气传感器（SO-110）被用于测量原位土壤氧气浓度（%O2）。传感器按照厂商提供的技术文档以及特定地点的信息进行了校准。传感器被部署在斜坡中段两侧坡面的土壤坑中两个不同深度。传感器通过专用程序连接至Campbell Scientific数据记录器，该程序每小时测量一次CO2和O2浓度，并每日进行平均值计算。