"varnames","vardesc"
"site","site name"
"pit","pit number (digit) - most sites have only one, but some have two"
"sample_id","identifier for specific soil sample"
"depth_cm","depth range for sample (cm)"
"horizon","horizon description"
"fine","bulk density (g/cm$^{3}$) of fine fraction"
"whole","bulk density (g/cm$^{3}$) of total soil volume"
"porosity","porosity as a % of total soil volume"
"coarse","coarse fraction as a % by mass"
"sample_date","date of sample collection"
"comments","any additional information"