Soil property estimates for the Upper Tana river catchment, Kenya, derived from SOTER and WISE (ver. 1.1)

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Niels H. Batjes
Publication_Date: 20110215
Title: Soil property estimates for the Upper Tana river catchment, Kenya, derived from SOTER and WISE (ver. 1.1)
Edition: ver. 1.1
Geospatial_Data_Presentation_Form: ArcGis 9.x 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.org/isric/webdocs/docs/ISRIC_Report_2010_07b.pdf
Online_Linkage: http://www.isric.org/sites/all/modules/pubdlcnt/pubdlcnt.php?file=http://www.isric.org/sites/default/files/datasets/SOTWIS_Kenya_UpperTana_v1_1.zip&nid=240
Description:
Abstract:
This data set describes a harmonized set of soil property estimates for the Upper Tana river catchment, Kenya. The data set was derived from the 1:250 000 scale Soil and Terrain Database for the Upper Tana (SOTER_UT, ver. 1.1; Dijkshoorn et al. 2011) and the ISRIC-WISE soil profile database, using standardized taxonomy-based pedotransfer (taxotransfer) procedures. The land surface of the Upper Tana, Kenya, covering some 18,900 km2, has been mapped in SOTER using 191 unique SOTER units. Each map unit may comprise of up to three different soil components. In so far as possible, each soil component has been characterized by a regionally representative profile, selected and classified by national soil experts. Conversely, in the absence of any measured legacy data, soil components were characterized using synthetic profiles for which only the FAO-Unesco (1988) classification is known. Soil components in SOTER_UT have been characterized using 146 profiles consisting of 109 real and 37 so-called synthetic profiles. The latter were used to represent some 18% per cent of the study area. Comprehensive sets of measured attribute data are seldom available for most profiles (109) collated in SOTER_UT, as these were not considered in the source materials. Consequently, to permit modelling, gaps in the soil analytical data have been filled using consistent taxotransfer procedures. Modal soil property estimates necessary to populate the taxotransfer procedure were derived from statistical analyses of soil profiles held in the ISRIC-WISE database. The current taxotransfer procedure only considers profiles in WISE that: (a) have FAO soil unit names (43) identical to those mapped for the Upper Tana in SOTER, and (b) originate from regions having similar Köppen climate zones (n= 5745). Property estimates are presented for 18 soil variables by soil unit for fixed depth intervals of 0.2 m to 1 m depth: organic carbon, total nitrogen, pH(H2O), CECsoil, CECclay, base saturation, effective CEC, aluminium saturation, CaCO3 content, gypsum content, exchangeable sodium percentage (ESP), electrical conductivity (ECe), bulk density, content of sand, silt and clay, content of coarse fragments (> 2 mm), and volumetric water content (-33 kPa to -1.5 MPa). 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 studies of global environmental change. The soil property estimates can be linked to the spatial data (map), using GIS, through the unique SOTER-unit code; database applications should consider the full map unit composition and depth range.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: 1) Batjes NH 2011. Soil property estimates for the Upper Tana river catchment, Kenya, derived from SOTER and WISE (ver. 1.1). Report 2010/07b, ISRIC – World Soil Information, Wageningen (vi + 37 p. with data set)(http://www.isric.org/isric/webdocs/docs/ISRIC_Report_2010_07b.pdf) 2) Dijkshoorn JA, Macharia P, Huting J, Maingi P and Njoroge C 2011. Soil and and terrain conditions for the Upper Tana river catchment, Kenya (Ver. 1.1), ISRIC Report 2010/09b, Kenya Agricultural Research Institute (KARI) and ISRIC – World Soil Information, Wageningen (http://www.isric.org/isric/webdocs/docs/ISRIC_Report_2010_09b.pdf), pp 35 + data set 3) Batjes NH 2010. Soil property estimates for the Upper Tana, Kenya, derived from SOTER and WISE (Ver. 1.0). Report 2010/07, ISRIC - World Soil Information, Wageningen (http://www.isric.org/isric/webdocs/docs/ISRIC_Report_2010_07.pdf) 4) Dijkshoorn JA, Macharia P, Huting J, Maingi P and Njoroge C 2010. Soil and and terrain conditions for the Upper Tana river catchment, Kenya, Kenya Agricultural Research Institute (KARI) and ISRIC – World Soil Information, Wageningen (http://www.isric.org/isric/webdocs/docs/ISRIC_Report_2010_09.pdf) 5) Batjes NH, Al-Adamat R, Bhattacharyya T, Bernoux M, Cerri CEP, Gicheru P, Kamoni P, 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 122, 26-34 (http://dx.doi.org/10.1016/j.agee.2007.01.005) 6) Immerzeel W, Huting JRM, Mantel S, Van Lynden G, Maingi P, Muchena F and Kamoni PT 2007. Green and blue water resources and assessment of soil and water management scenarios using an integrated modelling framework, IIED, SEI, IFAD, SADC, LEI and ISRIC, Wageningen (http://www.isric.org/isric/webdocs/docs/GWC_Report_3.pdf)
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19750101
Ending_Date: 20100401
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 37.463
East_Bounding_Coordinate: 37.908
North_Bounding_Coordinate: 0.323
South_Bounding_Coordinate: -1.168
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: PROJECT
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: SOTERPROGRAM > SOTER - SOIL AND TERRAIN DATABASE PROGRAMME
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 > EASTERN AFRICA > KENYA
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_Position: DIF AUTHOR
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: +31-317-483735
Contact_Electronic_Mail_Address: niels.batjes@wur.nl
Browse_Graphic:
Browse_Graphic_File_Name: http://www.isric.org/isric/webdocs/images/UT_figure_for_WDS_550.jpg
Browse_Graphic_File_Description:
Main FAO soil groupings for the Upper Tana river catchment, Kenya
Browse_Graphic_File_Type:
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The data set's lineage is described in: 1) Batjes NH 2011. Soil property estimates for the Upper Tana river catchment, Kenya, derived from SOTER and WISE (ver. 1.1). Report 2010/07b, ISRIC – World Soil Information, Wageningen (41p. with data set) (http://www.isric.org/isric/webdocs/docs/ISRIC_Report_2010_07.pdf) 2) Dijkshoorn JA, Macharia P, Huting J, Maingi P and Njoroge C 2011. Soil and and terrain conditions for the Upper Tana river catchment, Kenya (ver. 1.1). Kenya Agricultural Research Institute (KARI) and ISRIC – World Soil Information, Wageningen (http://www.isric.org/isric/webdocs/docs/ISRIC_Report_2010_09b.pdf)
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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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: +31-317-483735
Contact_Electronic_Mail_Address: niels.batjes@wur.nl
Resource_Description: ISRIC_Upper_Tana_Kenya
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Argis 9.x and MS-Access
Transfer_Size: 2.5 MB zipped
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/data/soil-property-estimates-...
Access_Instructions:
View project page and download information(Last revised Feb. 2011)
Fees: N/a
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Metadata_Reference_Information:
Metadata_Date: 20100913
Metadata_Review_Date: 20131009
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: NIELS H. BATJES
Contact_Position: INVESTIGATOR
Contact_Position: DIF AUTHOR
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: +31-317-483735
Contact_Electronic_Mail_Address: niels.batjes@wur.nl
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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