Bulk soil subsample collected from up to 30 cm depth as part of NEON terrestrial soil sampling protocols conducted 3 times annually. Soil sample taken from one of 3 randomly chosen locations within the sampling plot. Archived in liquid nitrogen.
temperature: 21.5, verbatim depth: 30
mixed mineral and organic seems to be top layer sand mid layer organic and sand lowest layer sand core taken to 30 cm; sample type: mineral