Cite this dataset as
Tuninetti, M., Tamea, S., Dalin, C. (2023). Water debt for the annual production of nine major crops globally at 5 arcmin resolution for the year 2000. NERC EDS Environmental Information Data Centre. (Dataset). https://doi.org/10.5285/45cb218c-b050-4ee8-8c87-73d3895a111f
Import this citation into your reference management software:
BibTeX | Reference Manager (RIS) | Endnote
This dataset is available under the terms of the Open Government Licence 
Water debt for the annual production of nine major crops globally at 5 arcmin resolution for the year 2000
Gridded data of water debt for year 2000. The water debt expresses the number of years required by the hydrological cycle to replenish the water source (soil moisture, surface water, ground water) that have been used to accomplish the annual production of nine major crops. The considered crops are: wheat, maize, rice, soybean, sugar cane, sugar beet, cotton, barley, sorghum.
Publication date: 2023-01-26
View record as
Format
Text (txt)
Spatial information
- Study area
-
- Spatial representation type
- Raster
- Spatial reference system
- WGS 84
Temporal information
- Temporal extent
-
2000-01-01 to 2000-12-31
Provenance & quality
Definition of the Water Debt (WD) Repayment Time:
The WD is calculated, at a 5' × 5' spatial resolution for the production of year 2000, as the ratio of the cell annual water footprint, WFs, cr, l, which is specific for each source s, crop cr, and location l, and the average renewable volume of water annually available in the cell.
The annual renewability rate is calculated as a long-term average along the period 1987–2013. In this way, we obtain an average measure of the water availability in the cell, which smooths out potential extremely dry or extremely wet years. The water footprint (WF) estimates are computed for year 2000 because this is the most referenced year in agricultural datasets available in the literature.
The WFs, cr, l estimate is obtained as the product of the local crop water footprint (CWF) by source, (CWFs, cr, l, expressed in cubic meters per ton of crop), and the annual crop production (Pr), (Pcr, l, expressed in tons of crop).
The total WD of the sources, arising from all the crops cultivated in the grid cell, WDs, l, equals the sum of debts generated by each crop.
Owing to the simultaneous replenishment of soil water, surface water, and groundwater by precipitation, the crop WD across the threes sources, WDcr, l, is given by the maximum WDs, l, cr value across sources s.
The WD is calculated, at a 5' × 5' spatial resolution for the production of year 2000, as the ratio of the cell annual water footprint, WFs, cr, l, which is specific for each source s, crop cr, and location l, and the average renewable volume of water annually available in the cell.
The annual renewability rate is calculated as a long-term average along the period 1987–2013. In this way, we obtain an average measure of the water availability in the cell, which smooths out potential extremely dry or extremely wet years. The water footprint (WF) estimates are computed for year 2000 because this is the most referenced year in agricultural datasets available in the literature.
The WFs, cr, l estimate is obtained as the product of the local crop water footprint (CWF) by source, (CWFs, cr, l, expressed in cubic meters per ton of crop), and the annual crop production (Pr), (Pcr, l, expressed in tons of crop).
The total WD of the sources, arising from all the crops cultivated in the grid cell, WDs, l, equals the sum of debts generated by each crop.
Owing to the simultaneous replenishment of soil water, surface water, and groundwater by precipitation, the crop WD across the threes sources, WDcr, l, is given by the maximum WDs, l, cr value across sources s.
Related
Correspondence/contact details
Authors
https://orcid.org/0000-0003-2619-8783 Other contacts
- Rights holder
-
Natural Environment Research Council
- Custodian
-
NERC EDS Environmental Information Data Centreinfo@eidc.ac.uk
- Publisher
-
NERC EDS Environmental Information Data Centreinfo@eidc.ac.uk
Additional metadata
- Topic categories
- farming
inlandWaters - INSPIRE theme
- Hydrography
- Keywords
- agronomy , crop production , hydrology , Hydrology , Mapping , Water resources sustainability
- Funding
- Natural Environment Research Council Award: NE/N01524X/1
European Research Council Award: 647473 - Last updated
- 05 March 2024 16:36