Topsoil organic carbon concentrations and stocks for Tanzania
This soil organic carbon dataset contains the following maps: soil organic carbon concentration (%) for the 0-10 cm, 10-20 cm, 20-30 cm and 0-30 cm soil layers, and bulk density (kg/m3) and soil organic carbon stock (kg/m2) for the 0-30 cm layer.
These maps were produced with (geostatistical) regression-kriging models that combined soil data from the NAFORMA survey, the Tanzania National Soil Survey and the African Soil Profiles Database Version 1.1 with a suite of environmental GIS data layers including a land cover map, SOTER soil class map, maps of topographic attributes derived from the SRTM-DEM, maps of surface reflectance and vegetation indices derived from satellite imagery. The regression-kriging models were used to predict carbon concentrations, stocks and bulk density at the nodes of a regular grid with 250 meter cell size covering the Tanzania. Prediction uncertainty was quantified and is available with the data as the lower and upper boundary of the 90% prediction interval. Further details about the input data, modelling framework, and cross validation results are provided in a peer-reviewed, scientific journal article.
The project was funded by the UN-REDD Programme Output 2.4 “National Maps inform delivery of the REDD+ Framework” and conducted through a letter of Agreement between Food and Agricultural Organization of the United Nations (FAO) and ISRIC-World Soil Information. The maps were produced by ISRIC - World Soil Information in a collaborative effort with the National Soil Survey, Ministry of Natural Resources and Tourism, Tanzania Forest Services, Sokoine University, and the AfSIS project.
Simple
- Date (Publication)
- 2019-03-01
- Citation identifier
- 10aa9ac3-1433-11e9-a8fa-a0481ca9e724
- Presentation form
- Digital map
- Status
- Completed
- Point of contact
-
Organisation name Individual name Electronic mail address Role ISRIC - World Soil Information
Bas Kempen
Author
- Theme
-
-
digital soil mapping
-
organic carbon
-
-
Stratum
-
-
Soil science
-
-
Region
-
-
Africa
-
United Republic of Tanzania
-
- Access constraints
- License
- Use constraints
- License
- Other constraints
-
Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0), https://creativecommons.org/licenses/by-nc-sa/4.0/
- Spatial representation type
- Grid
- Distance
- 250 m
- Language
- English
- Character set
- UTF8
- Topic category
-
- Geoscientific information
- Begin date
- 9999-01-01
- End date
- 2013-12-31
))
- Reference system identifier
- EPSG / 32736
- Distribution format
-
Name Version GTiff
Digital transfer options
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--related
https://files.isric.org/public/TZ_SOC/ Download
WWW:LINK-1.0-http--related
https://www.isric.org/projects/carbon-mapping-tanzania Project webpage
WWW:LINK-1.0-http--related
https://www.sciencedirect.com/science/article/pii/S0016706118305111?via%3Dihub Report
- Hierarchy level
- Dataset
- Statement
-
Kempen, B. et al. (2019). Mapping topsoil organic carbon concentrations and stocks for Tanzania. Geoderma 337. - ISSN 0016-7061 - p. 164 - 180. https://www.sciencedirect.com/science/article/pii/S0016706118305111?via%3Dihub
Metadata
- File identifier
- 10aa9ac3-1433-11e9-a8fa-a0481ca9e724 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2022-01-14T08:41:30
- Metadata standard name
-
ISO 19115:2003/19139
- Metadata standard version
-
2003/Cor.1:2006
- Metadata author
-
Organisation name Individual name Electronic mail address Role ISRIC - World Soil Information
Data infodesk
Point of contact
)))
