attributes.tag: collection_date
attributes.value: 2017-11-03
attributes.tag: depth
attributes.value: 0-15cm
attributes.tag: elev
attributes.value: 136m
attributes.tag: env_broad_scale
attributes.value: black soil
attributes.tag: env_local_scale
attributes.value: long-term fertilization
attributes.tag: env_medium
attributes.value: soil
attributes.tag: geo_loc_name
attributes.value: China:Heilongjiang
attributes.tag: lat_lon
attributes.value: 45.44 N 126.39 E
attributes.tag: replicate
attributes.value: biological replicate 41
attributes.tag: BioSampleModel
attributes.value: MIMS.me
attributes.tag: BioSampleModel
attributes.value: MIGS/MIMS/MIMARKS.soil