PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX dcat: <http://www.w3.org/ns/dcat#>
PREFIX dcmitype: <http://purl.org/dc/dcmitype/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX geo: <http://www.opengis.net/ont/geosparql#>
PREFIX vcard: <http://www.w3.org/2006/vcard/ns#>
PREFIX prov: <http://www.w3.org/ns/prov#>
PREFIX odrs: <http://schema.theodi.org/odrs#>
PREFIX sosa: <http://www.w3.org/ns/sosa/>
PREFIX sdo: <https://schema.org/>
PREFIX ef: <http://www.w3.org/2015/03/inspire/ef/>
PREFIX doo: <https://digital.ceh.ac.uk/ontology/doo/>
PREFIX adms: <http://www.w3.org/ns/adms#>
PREFIX : <https://catalogue.ceh.ac.uk/id/>
:45cb218c-b050-4ee8-8c87-73d3895a111f
dcterms:title "Water debt for the annual production of nine major crops globally at 5 arcmin resolution for the year 2000" ;
dcterms:identifier <https://catalogue.ceh.ac.uk/id/45cb218c-b050-4ee8-8c87-73d3895a111f> ;
adms:identifier <https://doi.org/10.5285/45cb218c-b050-4ee8-8c87-73d3895a111f> ;
dcterms:bibliographicCitation "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. https://doi.org/10.5285/45cb218c-b050-4ee8-8c87-73d3895a111f" ;
dcterms:description "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." ;
dcterms:provenance [
a dcterms:ProvenanceStatement ;
rdfs:label "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."
] ;
dcterms:spatial [
a dcterms:Location ;
dcat:bbox "POLYGON((-180 -90, -180 90, 180 90, 180 -90, -180 -90))"^^geo:wktLiteral ;
] ;
dcterms:temporal
[ a dcterms:PeriodOfTime ;
dcat:startDate "2000-01-01"^^xsd:date ;
dcat:endDate "2000-12-31"^^xsd:date ;
] ;
dcat:contactPoint
:45cb218c-b050-4ee8-8c87-73d3895a111f_c0 ;
dcterms:publisher
<https://ror.org/04xw4m193> ;
dcterms:relation <https://catalogue.ceh.ac.uk/id/76f8c5c0-6dde-407a-9710-2bca2e041512> ;
dcterms:subject
<http://onto.nerc.ac.uk/CEHMD/topic/9>,
<http://onto.nerc.ac.uk/CEHMD/topic/18>,
<http://www.eionet.europa.eu/gemet/concept/13209>,
<http://www.eionet.europa.eu/gemet/concept/11152>,
<http://www.eionet.europa.eu/gemet/concept/4118>,
<http://www.eionet.europa.eu/gemet/concept/9223>,
<http://vocabs.lter-europe.net/EnvThes/20216> ;
prov:wasGeneratedBy
:45cb218c-b050-4ee8-8c87-73d3895a111f_fund0,
:45cb218c-b050-4ee8-8c87-73d3895a111f_fund1 ;
a dcat:Dataset;
dcterms:type dcmitype:Dataset ;
dcterms:available "2023-01-26"^^xsd:date ;
dcat:landingPage <https://catalogue.ceh.ac.uk/id/45cb218c-b050-4ee8-8c87-73d3895a111f>, <https://doi.org/10.5285/45cb218c-b050-4ee8-8c87-73d3895a111f> ;
dcterms:license <https://spdx.org/licenses/OGL-UK-3.0.ttl>
;
dcterms:accessRights <http://vocab.nerc.ac.uk/collection/N07/current/UNRS/> ;
dcterms:theme
<http://onto.nerc.ac.uk/CEHMD/topic/9>,
<http://onto.nerc.ac.uk/CEHMD/topic/18> ;
dcat:distribution [
dcat:accessURL
<https://data-package.ceh.ac.uk/data/45cb218c-b050-4ee8-8c87-73d3895a111f> ;
dcterms:license <https://spdx.org/licenses/OGL-UK-3.0.ttl>
;
dcterms:accessRights <http://vocab.nerc.ac.uk/collection/N07/current/UNRS/> ;
dcterms:format
[
a dcterms:IMT ;
rdf:value "Plain text" ; rdfs:label "Plain text"
] ;
];
dcterms:creator
<https://orcid.org/0000-0003-2619-8783>,
<https://orcid.org/0000-0001-6388-3283>,
<https://orcid.org/0000-0002-2123-9622> ;
dcterms:language <http://id.loc.gov/vocabulary/iso639-1/en> .
:45cb218c-b050-4ee8-8c87-73d3895a111f_c0 a foaf:Person ;
foaf:name "Dalin, C." ;
foaf:familyName "Dalin" ;
foaf:givenName "C." ;
vcard:hasEmail "c.dalin@ucl.ac.uk" ;
foaf:member <https://ror.org/02jx3x895> ;
.
<https://ror.org/04xw4m193> a foaf:Organization ;
foaf:name "NERC EDS Environmental Information Data Centre" ;
vcard:hasEmail "info@eidc.ac.uk" ;
foaf:member <https://ror.org/04xw4m193> ;
.
<https://orcid.org/0000-0003-2619-8783> a foaf:Person ;
foaf:name "Tuninetti, M." ;
foaf:familyName "Tuninetti" ;
foaf:givenName "M." ;
vcard:hasEmail "marta.tuninetti@polito.it" ;
foaf:member <https://ror.org/00bgk9508> ;
.
<https://orcid.org/0000-0001-6388-3283> a foaf:Person ;
foaf:name "Tamea, S." ;
foaf:familyName "Tamea" ;
foaf:givenName "S." ;
vcard:hasEmail "stefania.tamea@polito.it" ;
foaf:member <https://ror.org/00bgk9508> ;
.
<https://orcid.org/0000-0002-2123-9622> a foaf:Person ;
foaf:name "Dalin, C." ;
foaf:familyName "Dalin" ;
foaf:givenName "C." ;
vcard:hasEmail "c.dalin@ucl.ac.uk" ;
foaf:member <https://ror.org/02jx3x895> ;
.
<http://onto.nerc.ac.uk/CEHMD/topic/9> a skos:Concept;
skos:prefLabel "Hydrology"; rdfs:label "Hydrology"
. <http://onto.nerc.ac.uk/CEHMD/topic/18> a skos:Concept;
skos:prefLabel "Mapping"; rdfs:label "Mapping"
. <http://www.eionet.europa.eu/gemet/concept/13209> a skos:Concept;
skos:prefLabel "crop production"; rdfs:label "crop production"
. <http://www.eionet.europa.eu/gemet/concept/11152> a skos:Concept;
skos:prefLabel "agronomy"; rdfs:label "agronomy"
. <http://www.eionet.europa.eu/gemet/concept/4118> a skos:Concept;
skos:prefLabel "hydrology"; rdfs:label "hydrology"
. <http://www.eionet.europa.eu/gemet/concept/9223> a skos:Concept;
skos:prefLabel "water resources conservation"; rdfs:label "water resources conservation"
. <http://vocabs.lter-europe.net/EnvThes/20216> a skos:Concept;
skos:prefLabel "environmental sustainability"; rdfs:label "environmental sustainability"
.
<https://ror.org/02jx3x895> a foaf:Organization ;
foaf:name "University College London" .
<https://ror.org/00bgk9508> a foaf:Organization ;
foaf:name "Politecnico di Torino " .
:45cb218c-b050-4ee8-8c87-73d3895a111f_fund0 a prov:Activity ; .
:45cb218c-b050-4ee8-8c87-73d3895a111f_fund1 a prov:Activity ; .