Nevada Desert Face Facility Soil Texture and Particle Size

Samples collected in 1997 from center of each plot before CO2 treatment commenced. Samples were oven dried (60C) and total weight determined. Sample were fractionated using a 2mm sieve and weights of rock fraction (>= 2mm) and soil fraction (<2mm) determined. Soil fraction was further analyzed for particle size ([NDFF_Soil_Particle_Size.xls]).

Soil fractions of samples collected at NDFF([NDFF_Soil_Texture.xls]) in 1997 before CO2 treatment commenced. Samples were processed through 62.5 um sieve to remove sand fraction then analysized for fine soil particle size on Micromeretics Saturn DigiSizer 5200.(see http://soilslab.dri.edu/instrument_dig.htm)

本数据集的样品于1997年CO₂处理开始前，从每个试验小区的中心采集得到。将样品置于60℃烘箱中烘干，并测定其总干重。随后使用2mm孔径筛对样品进行分级，分别测定砾石组分（粒径≥2mm）与土壤组分（粒径<2mm）的质量。对土壤组分进一步开展粒径分析（详见[NDFF_Soil_Particle_Size.xls]）。

本数据集的土壤组分样品于1997年CO₂处理开始前在NDFF处采集（详见[NDFF_Soil_Texture.xls]）。将样品通过62.5μm孔径筛以去除砂粒组分，随后使用Micromeretics Saturn DigiSizer 5200粒度分析仪对细土粒的粒径进行分析（详见 http://soilslab.dri.edu/instrument_dig.htm）。