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        <gco:CharacterString>Dati geografici relativi alle Carte di Potenzialità territoriale alle produzioni tartufigene.
La valutazione si basa su un modello "expert-based" che integra due livelli informativi: caratteristiche dei suoli e soprassuolo. Le potenzialità territoriali alla produzione di tartufi sono definite sulla base di un confronto tra le Carte delle attitudini dei suoli alle produzioni tartufigene alla scala 1:50.000 (2025), la Carta forestale del Piemonte (2025) incluse le formazioni arboree-arbustive lineari censite e altri dati cartografici relativi a usi e coperture del suolo (LULC) oltre a dati di maggior dettaglio riguardanti corileti, viticoltura, verde urbano e filari.
La potenzialità deriva dal valore di attitudine dei suoli, pesato in relazione alla presenza del suolo, alla tipologia colturale agricola, alla categoria forestale e alla presenza di filari; le informazioni sull’uso possono annullare, ridurre o incrementare l’attitudine.
La potenzialità territoriale alla produzione dei tartufi è definita per le tre specie di pregio: Tartufo bianco (Tuber magnatum Pico), Tartufo nero pregiato (Tuber melanosporum Vittad.) e Tartufo nero estivo o scorzone (Tuber aestivum Vittad.).
Per quanto riguarda la tecnica di elaborazione della cartografia si è optato per una discretizzazione dei dati al continuo che ha consentito un confronto tra dati di diversa natura e origine. Il dato finale è una cartografia con celle di 50mx50m, il miglior compromesso in termini di analisi e rappresentazione.
Le aree non coperte dai dati geografici devono intendersi come non indagate e quindi non definite in termini di potenzialità.

Il servizio di esposizione dati con protocollo WMS è organizzato in livelli denominati:
- Tartufo bianco: potTB
- Tartufo bianco con filari: potTB_F
- Tartufo nero pregiato: potTN
- Tartufo nero pregiato con filari: potTN_F
- Tartufo nero estivo o scorzone: potTS
- Tartufo nero estivo o scorzone con filari: potTS_F

Maggiori informazioni sulla metodologia possono essere richieste ai contatti per la risorsa indicati.</gco:CharacterString>
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                    <gmx:Anchor xlink:href="https://www.geoportale.piemonte.it/geonetwork/srv/api/registries/vocabularies/external.theme.rndt-all1">geonetwork.thesaurus.external.theme.rndt-all1</gmx:Anchor>
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                </gmd:MD_Identifier>
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            </gmd:CI_Citation>
          </gmd:thesaurusName>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:accessConstraints>
            <gmd:MD_RestrictionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#MD_RestrictionCode" codeListValue="otherRestrictions">otherRestrictions</gmd:MD_RestrictionCode>
          </gmd:accessConstraints>
          <gmd:otherConstraints>
            <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/noLimitations">no limitations to public access</gmx:Anchor>
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        </gmd:MD_LegalConstraints>
      </gmd:resourceConstraints>
      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
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        <gmd:LanguageCode codeList="http://www.loc.gov/standards/iso639-2/" codeListValue="ita">ita</gmd:LanguageCode>
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                        <gmd:URL xmlns:gml="http://www.opengis.net/gml">https://www.regione.piemonte.it/web/temi/ambiente-territorio/foreste/alberi-arboricoltura/tartufi</gmd:URL>
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                <gmd:URL>https://geoservices.csi.it/ms/wms/idf/rp-01/idfwms/wms_potenzialita_tartufigena</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gmx:Anchor xlink:href="http://www.opengis.net/def/serviceType/ogc/wms">Web Map Service (WMS)</gmx:Anchor>
              </gmd:protocol>
              <gmd:applicationProfile>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/view">Servizio di consultazione</gmx:Anchor>
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              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
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      </gmd:transferOptions>
      <gmd:transferOptions>
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        <gmd:MD_DigitalTransferOptions />
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      <gmd:transferOptions>
        <gmd:MD_DigitalTransferOptions>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://geoservices.csi.it/ms/wms/idf/rp-01/idfwms/wms_potenzialita_tartufigena</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gmx:Anchor xlink:href="http://www.opengis.net/def/serviceType/ogc/wms">Web Map Service (WMS)</gmx:Anchor>
              </gmd:protocol>
              <gmd:applicationProfile>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/view">Servizio di consultazione</gmx:Anchor>
              </gmd:applicationProfile>
              <gmd:name>
                <gco:CharacterString>potTB_F</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
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            </gmd:CI_OnlineResource>
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      </gmd:transferOptions>
      <gmd:transferOptions>
        <gmd:MD_DigitalTransferOptions>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://geoservices.csi.it/ms/wms/idf/rp-01/idfwms/wms_potenzialita_tartufigena</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gmx:Anchor xlink:href="http://www.opengis.net/def/serviceType/ogc/wms">Web Map Service (WMS)</gmx:Anchor>
              </gmd:protocol>
              <gmd:applicationProfile>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/view">Servizio di consultazione</gmx:Anchor>
              </gmd:applicationProfile>
              <gmd:name>
                <gco:CharacterString>potTN</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
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        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
      <gmd:transferOptions>
        <gmd:MD_DigitalTransferOptions>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://geoservices.csi.it/ms/wms/idf/rp-01/idfwms/wms_potenzialita_tartufigena</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gmx:Anchor xlink:href="http://www.opengis.net/def/serviceType/ogc/wms">Web Map Service (WMS)</gmx:Anchor>
              </gmd:protocol>
              <gmd:applicationProfile>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/view">Servizio di consultazione</gmx:Anchor>
              </gmd:applicationProfile>
              <gmd:name>
                <gco:CharacterString>potTN_F</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
      <gmd:transferOptions>
        <gmd:MD_DigitalTransferOptions>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://geoservices.csi.it/ms/wms/idf/rp-01/idfwms/wms_potenzialita_tartufigena</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gmx:Anchor xlink:href="http://www.opengis.net/def/serviceType/ogc/wms">Web Map Service (WMS)</gmx:Anchor>
              </gmd:protocol>
              <gmd:applicationProfile>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/view">Servizio di consultazione</gmx:Anchor>
              </gmd:applicationProfile>
              <gmd:name>
                <gco:CharacterString>potTS</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
      <gmd:transferOptions>
        <gmd:MD_DigitalTransferOptions>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://geoservices.csi.it/ms/wms/idf/rp-01/idfwms/wms_potenzialita_tartufigena?</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gmx:Anchor xlink:href="http://www.opengis.net/def/serviceType/ogc/wms">Web Map Service (WMS)</gmx:Anchor>
              </gmd:protocol>
              <gmd:applicationProfile>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/view">Servizio di consultazione</gmx:Anchor>
              </gmd:applicationProfile>
              <gmd:name>
                <gco:CharacterString>potTS_F</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>
              </gmd:description>
              <gmd:function>
                <gmd:CI_OnLineFunctionCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
              </gmd:function>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
      <gmd:transferOptions xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gn="http://www.fao.org/geonetwork">
        <gmd:MD_DigitalTransferOptions>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://www.geoportale.piemonte.it/geonetwork/srv/ita/catalog.search#/metadata/r_piemon:d910c089-c7aa-4b8c-a959-2eee6b2b8aac</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gmx:Anchor xlink:href="http://www.w3.org/TR/xlink/">WWW:LINK-1.0-http--link</gmx:Anchor>
              </gmd:protocol>
              <gmd:applicationProfile>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/view">Servizio di consultazione</gmx:Anchor>
              </gmd:applicationProfile>
              <gmd:name>
                <gco:CharacterString>Aree a vocazione tartufigena (edizione 2025)</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>
              </gmd:description>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
      <gmd:transferOptions xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gn="http://www.fao.org/geonetwork">
        <gmd:MD_DigitalTransferOptions>
          <gmd:onLine>
            <gmd:CI_OnlineResource>
              <gmd:linkage>
                <gmd:URL>https://geoservices.csi.it/ms/wcs/idf/rp-01/idfwcs/wcs_potenzialita_tartufigena</gmd:URL>
              </gmd:linkage>
              <gmd:protocol>
                <gmx:Anchor xlink:href="http://www.opengis.net/def/serviceType/ogc/wcs">Web Coverage Service (WCS)</gmx:Anchor>
              </gmd:protocol>
              <gmd:applicationProfile>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/SpatialDataServiceType/download">Servizio di scaricamento</gmx:Anchor>
              </gmd:applicationProfile>
              <gmd:name>
                <gco:CharacterString>Carte di Potenzialità territoriale alle produzioni tartufigene</gco:CharacterString>
              </gmd:name>
              <gmd:description>
                <gmx:Anchor xlink:href="http://inspire.ec.europa.eu/metadata-codelist/OnLineDescriptionCode/accessPoint">access point</gmx:Anchor>
              </gmd:description>
            </gmd:CI_OnlineResource>
          </gmd:onLine>
        </gmd:MD_DigitalTransferOptions>
      </gmd:transferOptions>
    </gmd:MD_Distribution>
  </gmd:distributionInfo>
  <gmd:dataQualityInfo>
    <gmd:DQ_DataQuality>
      <gmd:scope>
        <gmd:DQ_Scope>
          <gmd:level>
            <gmd:MD_ScopeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#MD_ScopeCode" codeListValue="dataset">dataset</gmd:MD_ScopeCode>
          </gmd:level>
        </gmd:DQ_Scope>
      </gmd:scope>
      <gmd:report>
        <gmd:DQ_DomainConsistency>
          <gmd:result>
            <gmd:DQ_ConformanceResult>
              <gmd:specification>
                <gmd:CI_Citation>
                  <gmd:title>
                    <gmx:Anchor xlink:href="http://data.europa.eu/eli/reg/2010/1089">REGOLAMENTO (UE) N. 1089/2010 DELLA COMMISSIONE del 23 novembre 2010 recante attuazione della direttiva 2007/2/CE del Parlamento europeo e del Consiglio per quanto riguarda l'interoperabilità dei set di dati territoriali e dei servizi di dati territoriali</gmx:Anchor>
                  </gmd:title>
                  <gmd:date>
                    <gmd:CI_Date>
                      <gmd:date>
                        <gco:Date>2010-12-08</gco:Date>
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                      <gmd:dateType>
                        <gmd:CI_DateTypeCode codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/Codelist/ML_gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
                      </gmd:dateType>
                    </gmd:CI_Date>
                  </gmd:date>
                </gmd:CI_Citation>
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              <gmd:explanation>
                <gco:CharacterString>Fare riferimento alle specifiche indicate</gco:CharacterString>
              </gmd:explanation>
              <gmd:pass gco:nilReason="unknown" />
            </gmd:DQ_ConformanceResult>
          </gmd:result>
        </gmd:DQ_DomainConsistency>
      </gmd:report>
      <gmd:report>
        <gmd:DQ_AbsoluteExternalPositionalAccuracy>
          <gmd:result>
            <gmd:DQ_QuantitativeResult>
              <gmd:valueUnit>
                <gml:BaseUnit gml:id="m">
                  <gml:identifier codeSpace="http://www.bipm.org/en/si/base_units">m</gml:identifier>
                  <gml:unitsSystem xlink:href="http://www.bipm.org/en/si" />
                </gml:BaseUnit>
              </gmd:valueUnit>
              <gmd:value>
                <gco:Record>
                  <gco:Real>50</gco:Real>
                </gco:Record>
              </gmd:value>
            </gmd:DQ_QuantitativeResult>
          </gmd:result>
        </gmd:DQ_AbsoluteExternalPositionalAccuracy>
      </gmd:report>
      <gmd:lineage>
        <gmd:LI_Lineage xmlns:gml="http://www.opengis.net/gml">
          <gmd:statement xmlns:gml="http://www.opengis.net/gml/3.2">
            <gco:CharacterString>Le potenzialità dei suoli alla produzione di tartufi sono definite sulla base di un valutazione expert based che confronta da una parte la carta delle attitudini alle produzioni tartufigene, alla scala 1:50.000, e dall’altra i dati di foreste e altri usi ed utilizzi del suolo (LULC).

Questa valutazione tiene conto non solo più le caratteristiche dei suoli ma anche del soprassuolo distinguendo sia le 21 categorie forestali per ciascuna specie di Tuber, sia gli altri usi del suolo derivati da landcover  e/o da altri dati di maggior dettaglio riguardo corileti, viticoltura e verde urbano.

Ad ogni categoria forestale e ad ogni uso sono stati attribuiti dei pesi che possono annullare l’attitudine, mantenerla tale ovvero aumentarne il peso.
Questo perché alcune specie forestali possono non essere adatte o scarsamente adatte alla formazione dei corpi fruttiferi dei tartufi, come per contro aree ormai impermeabilizzate, pur trovandosi su suoli altamente adatti, non sono più in grado di permettere lo sviluppo dei tartufi, non essendoci oltre tutto piante simbionti necessarie per la produzione.

Infine si sono considerate anche le formazioni lineari (filari) che spesso sono associate, seppur in contesti colturali omogenei, ad una produzione tartufigena. In tal caso la presenza di filari aumenta di 1 classe la potenzialità definita come da analisi precedentemente descritta, ove questa non sia già il risultato di un aumento dell’attitudine dovuta alla presenza di soprassuolo particolarmente adatto.

Per quanto riguarda la tecnica adottata per il calcolo si è optato per una discretizzazione dei dati, passando quindi da dati al continuo (suoli e LULC) ad un dato a maglia in quanto permette di effettuare analisi di dati non omogenei in termini semantici e spaziali e che presentano elementi che spesso insistono sulla stesso ambito spaziale ma con differenti qualità in termini di precisione geometrica e/o di definizione semantica.

Il dato finale quindi è una rappresentazione raster a passo 50 metri che rappresenta il miglior compromesso in termini di precisione di analisi e rappresentazione.

Maggiori informazioni sulla metodologia possono essere richieste ai contatti per la risorsa indicati in seguito.</gco:CharacterString>
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