https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.9 2026-05-13T10:52:13.516Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/3526afb8-0dc9-43c7-8ad4-f34f250a1e91 SOILS Date=2017-03-10 User Id=tstevens Entity=Definition Operation=UPDATE Field=reference System Note=update Definition Old Value=The Nature and Properties of Soils, Prentice Hall, 1996. New Value=The Nature and Properties of Soils, Prentice Hall, 1996. Date=2017-03-10 User Id=tstevens Entity=Definition Operation=UPDATE Field=text System Note=update Definition Old Value=The range of dynamic natural bodies composed of mineral and organic materials and living forms in which plants grow. New Value=The range of dynamic natural bodies composed of mineral and organic materials and living forms in which plants grow. Date=2020-05-15 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SOILS [3526afb8-0dc9-43c7-8ad4-f34f250a1e91,83537] - SOIL BIOGEOCHEMISTRY [df5ff39e-b49f-4517-afc0-1842a1a6fdc7,560133] Date=2020-05-13 User Id=tstevens Entity=NarrowerRelation Operation=INSERT User Note=Insert Concept System Note=add narrower relation New Value=SOILS [3526afb8-0dc9-43c7-8ad4-f34f250a1e91,83537] - IRON [ae575305-340d-474b-99a7-22b537f10ec8,560109] The range of dynamic natural bodies composed of mineral and organic materials and living forms in which plants grow. 2020-05-15 09:28:20.0