Soil Pit Sensor Data, Volumetric Water Content and Temperature, Far North Queensland Rainforest SuperSite, Daintree Rainforest Observatory, Cape Tribulation, 2009

A soil pit was dug to 1.5 m depth in July 2007 and monitoring probes were installed at 0.1, 0.75 and 1.5 m depths in three columns. At each depth there were 3 time domain reflectometry probes (Campbell Scientific CS616) to measure volumetric water content, 3 gypsum blocks (Measurement Engineering Australia GBHeavy, except at 0.1 m depth were there were only 2) to measure water potential over the range -30 to -600 kPa. In addition one TCAV thermocouple probe to record soil temperature was located in the centre of the soil pit at 0.10m. In each column the time domain reflectometry and gypsum blocks were separated laterally by 20cm, each column was separated from the next by 100cm. At each depth the time domain reflectometry and gypsum blocks were separated laterally by 1 m.2007年7月，研究人员挖掘了一处深度达1.5米的土壤剖面坑，并在3根土柱的0.1 m、0.75 m及1.5 m深度处安装监测探头。其中，每个深度位置均布设3台时域反射仪（time domain reflectometry, TDR）探头（坎贝尔科学CS616，Campbell Scientific CS616），用于测定土壤体积含水量；同时布设3个石膏块传感器（澳大利亚测量工程GBHeavy，Measurement Engineering Australia GBHeavy，仅0.1 m深度处布设2个），用于测量量程为-30至-600 kPa的土壤水势。此外，在土壤剖面坑中心的0.10 m深度处，安装1台TCAV型热电偶探头以记录土壤温度。每根土柱内的时域反射仪探头与石膏块传感器横向间距为20 cm，相邻土柱之间的间距为100 cm；同一深度下的时域反射仪探头与石膏块传感器横向间距为1 m。