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Soil and terrain suitability for rain-fed maize, with high and low inputs - GAEZ v4 (Global - about 1 km)

Soil and terrain suitability for maize dataset, at about 1 km resolution, investigates soil suitability and both soil and terrain suitability for maize, under rain-fed condition, with high and low inputs.


The Soil and terrain suitability for crops datasets are part of the GAEZ v4 Theme 1 Land and Water Resources, Soil Suitability sub-theme.


In the GAEZ v4 the Soil Suitability assessment sub-theme, soil qualities are evaluated for each crop and input/management level and for different water supply systems (rain-fed and irrigated). The results are crop and input level specific soil suitability ratings, which are used for the crop suitability and attainable yield assessment presented in Theme 4.

Terrain suitability is also estimated according to terrain-slope classes and location-specific rainfall amounts and rainfall-concentration characteristics to account for soil erosion risks related to crop cover dynamics. Soil and terrain suitability are combined in an edaphic rating factor by crop, water supply type and input level, which is an important input for the estimation of agro-ecological crop suitability and attainable yields presented in Theme 4.


For further details, please refer to the GAEZ v4 Model Documentation.

Simple

Date (Publication)
2021-05
Edition

v.4

Collective title

Global Agro-Ecological Zoning version 4 (GAEZ v4)

Purpose

Provides a characterization of bio-physical resources relevant to agricultural production systems.

Status
Completed
Originator
  International Institute for Applied Systems Analysis (IIASA) - Fischer Gunther ( Emeritus Research Scholar )
https://iiasa.ac.at/
Distributor
  Food and Agriculture Organization of the United Nations GAEZ v4 Data Portal - UNFAO - NSL Geospatial Unit
https://gaez-data-portal-hqfao.hub.arcgis.com/
Maintenance and update frequency
As needed
Theme
  • climate

  • land cover

  • soil

  • elevation and terrain slopes

  • protected areas

  • administrative units

  • watersheds

  • population

  • livestock

  • soil suitability

  • GAEZ v4_theme1_soil suitability

  • GAEZ v4_theme1

Place
  • World

Access constraints
Copyright
Use constraints
otherRestictions
Other constraints

GAEZ v4 Disclaimer at https://gaez.fao.org/pages/disclaimer

Spatial representation type
Grid
Metadata language

eng

Character set
UTF8
Topic category
  • Farming
  • Climatology, meteorology, atmosphere
  • Economy
  • Environment
  • Inland waters
  • Elevation
Begin date
2041-01-01
End date
2099-12-31
N
S
E
W
thumbnail


Supplemental Information

The GAEZ v4 Land and Water Resources theme provides a framework for establishing a spatial inventory of land resources. It includes selected layers organized in several sub-themes of (1) Agro-ecological Zones, (2) Land Cover, (3) Soil Resources, (4) Soil Suitability, (5) Terrain Resources, (6) Exclusion Areas, (7) Water Resources, and (8) Selected Socio-economic Data. It contains spatial layers of climate, land cover, soil, elevation and terrain slopes, protected areas and areas of high biodiversity value, administrative units, watersheds, population and livestock distribution.

For further details, please refer to Chapters 2, 6 and 10 of the GAEZ v4 Model Documentation

Reference system identifier
WGS 1984
Number of dimensions
2
Dimension name
Column
Dimension size
43200
Resolution
30  arc/second
Dimension name
Row
Dimension size
21600
Resolution
30  arc/second
Cell geometry
Area
Transformation parameter availability
Yes
Distribution format
  • GeoTIFF ( 1.0 )

OnLine resource
GAEZ v4 Model Documentation ( WWW:LINK-1.0-http--link )
OnLine resource
SOI2 ( OGC:WMS-1.3.0-http-get-map )

Land and Water Resources - Soil suitability - Soil and terrain suitability

OnLine resource
GAEZ v4 Data Portal ( WWW:LINK-1.0-http--link )
File identifier
fd3fc7ff-07d3-477a-a905-c46dbecc9dcc XML
Metadata language
English
Character set
UTF8
Date stamp
2022-10-20T16:43:59
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Point of contact
  UNFAO - NSL Geospatial Unit - GAEZ@fao.org
Viale delle Terme di Caracalla , Rome , 00153 , Italy
 
 

Overviews

overview
Soil and terrain suitability

Spatial extent

N
S
E
W
thumbnail


Keywords

GAEZ v4_theme1 GAEZ v4_theme1_soil suitability administrative units climate elevation and terrain slopes land cover livestock population protected areas soil soil suitability watersheds

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Access to the portal
Read here the full details and access to the data.

Associated resources

Not available


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