Imaging · collection · 2014
A Global Database of Soil Phosphorus Compiled from Studies Using Hedley Fractionation
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.3334/ornldaac/1230
This data set provides concentrations of soil phosphorus (P) compiled from the peer-reviewed literature that cited the Hedley fractionation method (Hedley and Stewart, 1982).
Description
This database contains estimates of different forms of naturally occurring soil phosphorus, including labile inorganic P, organic P, occluded P, secondary mineral P, apatite P, and total P, based on the analyses of the various Hedley soil fractions.
The recent literature survey (Yang and Post, 2011) was restricted to studies of natural, unfertilized, and uncultivated soils since 1995. Ninety measurements of soil P fractions were identified. These were added to the 88 values from soils in natural ecosystems that Cross and Schlesinger (1995) had compiled.
Read the rest (1 more)
Cross and Schlesinger provided a comprehensive survey on Hedley P data prior to 1995. Measurement data are provided for studies published from 1985 through 2010. In addition to the Hedley P fraction measurement data Yang and Post (2011) also compiled information on soil order, soil pH, organic carbon and nitrogen content, as well as the geographic location (longitude and latitude) of the measurement sites.
Links
Get the data
- Data set Landing Page DOI URL doi.org/10.3334/ornldaac/1230 ↗
landing page · download · DOI / persistent id · from NASA CMR, data nasa gov
- Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/global_soil/Global_Phosphorus_Hedley_Fract/comp/Global_… ↗
documentation · download · from NASA CMR, data nasa gov
- ORNL DAAC Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/global_soil/Global_Phosphorus_Hedley_Fract/comp/Yang_an… ↗
documentation · download · from NASA CMR, data nasa gov
- Data Set Documentation data.ornldaac.earthdata.nasa.gov/public/global_soil/Global_Phosphorus_Hedley_Fract/comp/Referen… ↗
documentation · download · from NASA CMR, data nasa gov
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2216863440-ORNL_CLOUD.iso19115 ↗
download · from data nasa gov
- Collection Bundle URL data.ornldaac.earthdata.nasa.gov/protected/bundle/Global_Phosphorus_Hedley_Fract_1230.zip ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C2216863440-ORNL_CLOUD ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- PNG daac.ornl.gov/SOILS/guides/Hedley_P_figure1.png ↗
download · preview image · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/a-global-database-of-soil-phosphorus-compiled-from-stu… ↗
landing page · from data nasa gov
Catalogue records · 3
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2216863440-ORNL_CLOUD.umm_json ↗
metadata API · from NASA CMR
- CKAN API data.nasa.gov/api/3/action/package_show?id=95659583-fecd-4625-8bc3-a354f665c… ↗
metadata API · from data nasa gov
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2216863440-ORNL_CLOUD.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- NOT APPLICABLE · NOT APPLICABLE · Phosphorus · Soil Chemistry
- From keywords
- Chemistry · Earth & Environmental Science
- Inferred from text
- Soil sciences 72%
Provenance · 2 source records, 17 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2216863440-ORNL_CLOUD | 13 d ago | JSON v1 |
| NASA Data Portal | 95659583-fecd-4625-8bc3-a354f665cac5 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:4106 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (72%) |
| concepts[field].local:field:chemistry | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[instrument].gcmd_instrument:not-applicable | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/soils/phosphorus | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/soils/soil-chemistry | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-applicable | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |