SOTER-based soil parameter estimates for Southern Africa (ver. 1.0)

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Niels H. Batjes

Publication_Date: 20041015

Title: SOTER-based soil parameter estimates for Southern Africa (ver. 1.0)

Edition: ver. 1.0

Geospatial_Data_Presentation_Form: ArcView3.3 and MSAccess tables (zipped)

Series_Information:

Series_Name:

Issue_Identification:

Publication_Information:

Publication_Place: Wageningen

Publisher: ISRIC - World Soil Information

Other_Citation_Details:

http://www.isric.nl/isric/Webdocs/Docs/ISRIC_Report_2004_04.pdf

Online_Linkage: http://www.isric.nl/isric/CheckRegistration.aspx?dataset=24

Description:

Abstract:

This harmonized set of soil parameter estimates for Southern Africa has been derived from the 1:2M scale Soil and Terrain Database for Southern Africa (SOTERSAF ver. 1.0) and ISRIC-WISE soil profile database. The land surface of Southern Africa has been characterized using 4022 unique SOTER units, corresponding with 6099 polygons. The major soils have been described using 941 profiles, selected by national soil experts as being representative for these units. The associated soil analytical data have been derived from soil survey reports. These sources seldom hold all the physical and chemical attributes ideally required by SOTER. Gaps in the measured soil profile data have been filled using a step-wise procedure that uses taxonomy-based pedotransfer rules, based on some 9600 soil profiles held in the WISE2 database. Parameter estimates are presented by soil unit for fixed depth intervals of 0.2 m to 1 m depth for: organic carbon, total nitrogen, pH(H2O), CECsoil, CECclay, base saturation, effective CEC, aluminium saturation, CaCO3 content, gypsum content, exchangeable sodium percentage (ESP), electrical conductivity of saturated paste (ECe), bulk density, content of sand, silt and clay, content of coarse fragments (> 2 mm), and available water capacity (-33 to -1500 kPa). These attributes have been identified as being useful for agro-ecological zoning, land evaluation, crop growth simulation, modelling of soil carbon stocks and change, and analyses of global environmental change. The current parameter estimates should be seen as best estimates based on the current selection of soil profiles and data clustering procedure. Taxotransfer rules have been flagged to provide an indication of the possible confidence in the derived data. Results are presented as summary files and can be linked to the 1:2M scale SOTERSAF map in a GIS, through the unique SOTER-unit code. The secondary data are considered appropriate for studies at the continental scale. Correlation of soil analytical data should be done more rigorously when more detailed scientific work is considered. [Further details: http://www.isric.org/

Purpose:

Not Available

Supplemental_Information:

REFERENCE: Batjes NH 2004. SOTER-based soil parameter estimates for Southern Africa (ver. 1.0). Report 2004/04, ISRIC - World Soil Information, Wageningen (http://www.isric.org/isric/webdocs/Docs/ISRIC_Report_2004_04.pdf) Batjes NH, R. Al-Adamat, Bhattacharyya T, M. Bernoux, C.E.P. Cerri, P. Gicheru, P. Kamoni, Milne E, Pal DK and Rawajfih Z 2007. Preparation of consistent soil data sets for SOC modelling purposes: secondary SOTER data sets for four case study areas. Agriculture, Ecosystems and Environment 112, 26-34 Dijkshoorn JA 2003. SOTER database for Southern Africa (SOTERSAF; ver. 1.0). Technical Report, ISRIC - World Soil Information, Wageningen (http://www.isric.org/ISRIC/webdocs/docs/sotersaf_techical%20report.pdf) FAO and ISRIC 2003. Soil and Terrain database for Southern Africa (1:2 million scale). FAO Land and Water Digital Media Series 25, ISRIC and FAO, Rome

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19700101

Ending_Date: 20030601

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: 11.679219

East_Bounding_Coordinate: 40.842995

North_Bounding_Coordinate: -0.99074

South_Bounding_Coordinate: -34.83983

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > CALCIUM

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > CARBON

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > CATION EXCHANGE CAPACITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > ELECTRICAL CONDUCTIVITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > NITROGEN

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > ORGANIC MATTER

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL SALINITY/SOIL SODICITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL BULK DENSITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL CLASSIFICATION

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL DEPTH

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL HORIZONS/PROFILE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL PH

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL TEXTURE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL WATER HOLDING CAPACITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > CALCIUM

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > CARBON

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > CATION EXCHANGE CAPACITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > ELECTRICAL CONDUCTIVITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > NITROGEN

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > ORGANIC MATTER

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL SALINITY/SOIL SODICITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL BULK DENSITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL CLASSIFICATION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL DEPTH

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL HORIZONS/PROFILE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL PH

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEXTURE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL WATER HOLDING CAPACITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS

Theme_Keyword: Secondary (derived) Soil Data

Theme_Keyword: Soil Parameter Estimates

Theme_Keyword: ENVIRONMENT

Theme_Keyword: IMAGERY/BASE MAPS/EARTH COVER

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > AFRICA > CENTRAL AFRICA > ANGOLA

Place_Keyword: CONTINENT > AFRICA > SOUTHERN AFRICA > BOTSWANA

Place_Keyword: CONTINENT > AFRICA > SOUTHERN AFRICA > LESOTHO

Place_Keyword: CONTINENT > AFRICA > EASTERN AFRICA > MOZAMBIQUE

Place_Keyword: CONTINENT > AFRICA > SOUTHERN AFRICA > NAMIBIA

Place_Keyword: CONTINENT > AFRICA > SOUTHERN AFRICA > SOUTH AFRICA

Place_Keyword: CONTINENT > AFRICA > SOUTHERN AFRICA > SWAZILAND

Place_Keyword: CONTINENT > AFRICA > EASTERN AFRICA > TANZANIA

Place_Keyword: CONTINENT > AFRICA > EASTERN AFRICA > ZIMBABWE

Access_Constraints: ISRIC kindly requests that you send us two reprints of any publication that uses data received from ISRIC – World Soil Information. This will help us to determine the type and level of use of the data we distribute.

Use_Constraints:

Materials developed by ISRIC are copyrighted, all rights reserved. Reproduction and dissemination of such materials for educational or non-commercial purposes are authorized without any prior written permission from the copyright holders provided the source is fully acknowledged. Reproduction of materials for resale or other commercial purposes is prohibited without prior written permission of the copyright holders. Applications for such permission should be addressed to: Director, ISRIC - World Soil Information, PO Box 353, 6700 AJ Wageningen, the Netherlands or by e-mail to soil.isric@wur.org. ISRIC requests you to acknowledge use of our data; this will allow us to gauge the interest and usefulness of our services. Please refer to the dataset documentation for suggested form of acknowledgement and correct citation.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: NIELS H. BATJES

Contact_Position: INVESTIGATOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: ISRIC - World Soil Information (World Data Center for Soils)

Address: P.O. Box 353

City: Wageningen

Postal_Code: 6700 AJ

Country: The Netherlands

Contact_Voice_Telephone: +31-317-471700

Contact_Electronic_Mail_Address: niels.batjes@wur.nl

Browse_Graphic:

Browse_Graphic_File_Name: http://www.isric.org/isric/webdocs/images/sotwis_SAF-GISimage450.JPG

Browse_Graphic_File_Description:

SOTER-derived soil properties for Southern Africa

Browse_Graphic_File_Type:

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The data set's lineage is described in: Batjes NH 2004. SOTER-based soil parameter estimates for Southern Africa (ver. 1.0). Report 2004/04, ISRIC - World Soil Information, Wageningen (http://www.isric.org/isric/Webdocs/Docs/ISRIC_Report_2004_04.pdf)

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:

Not Available

Process_Date: Unknown

Spatial_Reference_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: WDC/SOILS, ISRIC, WAGENINGEN > World Data Center for Soils, ISRIC - World Soil Information, Wageningen

Contact_Person: NIELS H. BATJES

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: ISRIC - World Soil Information (World Data Center for Soils)

Address: P.O. Box 353

City: Wageningen

Postal_Code: 6700 AJ

Country: The Netherlands

Contact_Voice_Telephone: +31-317-471700

Contact_Electronic_Mail_Address: niels.batjes@wur.nl

Resource_Description: ISRIC_SOTWIScaf

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.isric.org

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.isric.org/projects/soter-and-wise-based...

Access_Instructions:

View project home page; download documentation and (zipped) data set

Fees: N/a

Metadata_Reference_Information:

Metadata_Date: 20070706

Metadata_Review_Date: 20110830

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: GCMD User Support Office

Contact_Organization: NASA Global Change Master Directory

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Not Available

City: Lanham

State_or_Province: MD

Postal_Code: 20706

Country: USA

Contact_Voice_Telephone: Not Available

Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time