RELEASE-2021

This data product contains the quality-controlled, native sampling resolution data from NEON's belowground plant biomass stock and chemistry measurements from Megapits. Soil samples were collected at 10 cm depth increments to the first 100 cm below the surface, then 20 cm depth increments thereafter, along three vertical profiles from a single temporary soil pit at a location expected to be representative of NEON sensor-based soil plots. This sampling activity is expected to occur once at each NEON terrestrial site. Root material is sorted, dried, weighed, and analyzed, then any excess root sample material is archived in the NEON Biorepository and are available on request. For additional details, see the user guide, protocols, and science design listed in the Documentation section below. Products resulting from this sampling include root biomass by size class and live/dead status, as well as root chemistry and stable isotope ratios. A summary table of external lab precision and accuracy is included in the expanded package. Latency: Data were collected once, at the establishment of each site. Data were published within one year of collection, and future collections at existing sites are not expected.