GAEZ v4 Theme 6: Yield and Production Gaps - (Global - about 9 km)
Yield gaps provide important information for identifying causes of food insecurity and addressing rural poverty. Yield and production gaps have been estimated by comparing at a spatially detailed level of 5 arc-minutes the agro-ecological attainable yield and production of 22 major crops/crop groups (see Theme 4), simulated under the historical climate of 1981-2010, with actual yields and production obtained by downscaling for the years 2000 and 2010 statistical data of main food, feed and fiber crops (see Theme 5). Comparisons are done separately for rain-fed and irrigated cropland and are presented as crop yield achievement ratios for yields, computed as actual over potential yield, and as absolute values for the difference of potential and actual production.
Theme 6 provides information about: (1) Crop Yield Achievement Ratio, (2) Production Gap, and (3) Aggregate Yield Achievement Ratio.
Results of this theme are presented in a regular raster format of 5 arc-minute (about 9 x 9 km at the equator) grid cells.
GAEZ methodology development, data base compilation, production of results and establishing the Data Portal were accomplished in close technical collaboration and with inputs of the International Institute for Applied Systems Analysis (IIASA).
For further details, please refer to the GAEZ v4 Model Documentation.
Simple
- Date ( Publication )
- 2021-05-01
- Edition
- v.4
- Name
- Global Agro-Ecological Zoning version 4 (GAEZ v4)
- Status
- Completed
- Maintenance and update frequency
- As needed
- Keywords ( Theme )
-
- yield and production gaps
- yield gaps
- production gaps
- crop yield achievement ratio
- aggregate yield achievement ratio
- GAEZ v4 Theme 6
- Keywords ( Place )
-
- World
- Access constraints
- Copyright
- Use constraints
- otherRestictions
- Other constraints
- GAEZ v4 Disclaimer at https://gaez.fao.org/pages/disclaimer
- Aggregate Datasetindentifier
- 7a10de20-7845-453d-8af9-90688ef5b0f9
- Association Type
- Part of seamless database
- Initiative Type
- Study
- Aggregate Datasetindentifier
- 5d1382bf-7584-47d0-83a9-cfd76d856720
- Association Type
- Part of seamless database
- Initiative Type
- Study
- Aggregate Datasetindentifier
- 58175614-c705-4e03-a249-1414015c388b
- Association Type
- Part of seamless database
- Initiative Type
- Study
- Aggregate Datasetindentifier
- d4ab84c5-4157-47c4-a544-a2e6244e29bb
- Association Type
- Part of seamless database
- Initiative Type
- Study
- Aggregate Datasetindentifier
- 5628ff88-7c35-44ae-99f2-17bea6b3ebed
- Association Type
- Part of seamless database
- Initiative Type
- Study
- Spatial representation type
- Grid
- Metadata language
- eng
- Character set
- UTF8
- Topic category
-
- Climatology, meteorology, atmosphere
- Economy
- Environment
- Farming
- Society
- Begin date
- 1981-01-01
- End date
- 2010-12-31
![thumbnail](https://data.apps.fao.org:/map/catalog/components/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((180 -90,180 90,-180 90,-180 -90,180 -90)))
- Reference system identifier
- WGS 1984
- Number of dimensions
- 2
- Dimension name
- Column
- Dimension size
- 4320
- Resolution
- 5 arc/minute
- Dimension name
- Row
- Dimension size
- 2160
- Resolution
- 5 arc/minute
- Cell geometry
- Area
- Transformation parameter availability
- Yes
- Distribution format
-
-
GeoTIFF
(
1.0
)
-
GeoTIFF
(
1.0
)
- OnLine resource
- GAEZ v4 Model Documentation ( WWW:LINK-1.0-http--link )
- OnLine resource
- GAEZ v4 Data Portal ( WWW:LINK-1.0-http--link )
gmd:MD_Metadata
- File identifier
- 2e4efd5c-ed62-4fbd-a125-66a5b3be16af XML
- Metadata language
- en
- Character set
- UTF8
- Date stamp
- 2022-11-30T10:38:21
- Metadata standard name
- ISO 19115:2003/19139
- Metadata standard version
- 1.0
Overviews
Spatial extent
![thumbnail](https://data.apps.fao.org:/map/catalog/components/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((180 -90,180 90,-180 90,-180 -90,180 -90)))
Provided by
![logo](https://data.apps.fao.org:/map/catalog/components/../images/logos/d5a5b43b-6e52-4ec6-94af-f95c6e4dac24.png)