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<title>SITG_ADM.EIL_PERTE_SOL_2_TONNES</title>
<ftname>EIL_PERTE_SOL_2_TONNES</ftname>
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<themekey>REQUIRED: Common-use word or phrase used to describe the subject of the data set.</themekey>
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<accconst>REQUIRED: Restrictions and legal prerequisites for accessing the data set.</accconst>
<useconst>REQUIRED: Restrictions and legal prerequisites for using the data set after access is granted.</useconst>
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<idCitation>
<resTitle>RISQUE PERTES SOL - EROSION SOLS CULTIVES (2 tonnes)</resTitle>
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<rpXTBID>6a5b53e2-5301-4ab9-8766-878e5492a3b7</rpXTBID>
<rpIndName>Antoine Besson</rpIndName>
<rpXTIndLastName>Besson</rpXTIndLastName>
<rpXTIndFirstName>Antoine</rpXTIndFirstName>
<rpOrgName>Haute école spécialisée HES-SO Genève</rpOrgName>
<rpXTPartName>Laboratoire des sols - Institut Terre-Nature-Environnement, Hepia</rpXTPartName>
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<eMailAdd>antoine.besson@hesge.ch</eMailAdd>
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<idAbs>CARTE DU RISQUE DE PERTES EN SOL PAR EROSION DES SOLS CULTIVES (2 tonnes)
L'érosion des sols cultivés amène dans les eaux de surface des quantités non négligeables de phosphore, de matières organiques et de pesticides. Ces apports nuisent à la qualité des eaux et il convient de les minimiser, , par des mesures de lutte contre l'érosion.
Pour le sol, le risque de diminution de la fertilité dépend essentiellement des quantités de terre perdues par érosion et de l'épaisseur du sol (cf. carte du risque d'érosion pour les sols cultivés). Pour les eaux de surface, la menace est fonction des quantités de terre érodées, des teneurs en substances indésirables (p. ex. le phosphore ou les résidus de pesticides) et de la part de terre érodée qui arrive dans les eaux de surface. Les cartes du risque de pertes en sol par érosion représentent pour les sols cultivés du canton de Genève (grandes cultures, vignes et herbages permanents) la probabilité (en cinq classes) que les pertes en sol dépassent un seuil prédéfini. Ces seuils ont été fixés à 1, 2 et 4 tonnes de sol par hectare et par an.</idAbs>
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<idXTLegalLink>Recueil systématique du droit fédéral (lien générique)
https://www.admin.ch/gov/fr/accueil/droit-federal/recueil-officiel.html
Ordonnance sur les atteintes portées aux sols (Osol) 814.12
Recueil systématique genevois (RSG) (lien générique)
http://www.ge.ch/legislation/
Règlement d'application transitoire de la loi fédérale sur la protection de l'environnement K 1 70.02</idXTLegalLink>
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<idXTInfoSup>http://hepia.hesge.ch/
https://www.ge.ch/proteger-sols</idXTInfoSup>
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<descXT>Agriculture</descXT>
</tpCat>
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<descXT>Forêt, flore, faune</descXT>
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<state>REQUIRED: The state or province of the address.</state>
<postal>REQUIRED: The ZIP or other postal code of the address.</postal>
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<cntvoice>REQUIRED: The telephone number by which individuals can speak to the organization or individual.</cntvoice>
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<spindex Sync="TRUE">TRUE</spindex>
<linrefer Sync="TRUE">FALSE</linrefer>
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<plance Sync="TRUE">coordinate pair</plance>
<plandu Sync="TRUE">meters</plandu>
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<attrtype>Geometry</attrtype>
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<attscale Sync="TRUE">0</attscale>
<attrdef Sync="TRUE">Feature geometry.</attrdef>
<attrdefs Sync="TRUE">ESRI</attrdefs>
<attrdomv>
<udom Sync="TRUE">Coordinates defining the features.</udom>
</attrdomv>
<atXTdesc>Champ binaire automatique contenant la géométrie des objets</atXTdesc>
<attwidth Sync="TRUE">4</attwidth>
</attr>
<attr>
<attrlabl>OBJECTID</attrlabl>
<attalias Sync="TRUE">OBJECTID</attalias>
<attrtype>OID</attrtype>
<atprecis Sync="TRUE">10</atprecis>
<attscale Sync="TRUE">0</attscale>
<attrdef Sync="TRUE">Internal feature number.</attrdef>
<attrdefs Sync="TRUE">ESRI</attrdefs>
<attrdomv>
<udom Sync="TRUE">Sequential unique whole numbers that are automatically generated.</udom>
</attrdomv>
<atXTdesc>Champ automatique avec l'identifiant de la base de chaque objet (Attention, ne pas l'utiliser comme identifiant unique permanent)</atXTdesc>
<attwidth Sync="TRUE">4</attwidth>
</attr>
<attr>
<attrlabl>CLASSE</attrlabl>
<attalias Sync="TRUE">CLASSE</attalias>
<attrtype>String</attrtype>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<atXTdesc>Probabilité d'atteinte ou de dépassement des seuils de perte en sol.
Les seuils sont de :
1 tonne par hectare et par an (carte_perte_sol_1),
2 tonnes par hectare et par an (carte_perte_sol_2) et
4 tonnes par hectare et par an (carte_perte_sol_4). La mention " pas de valeur " est attribuée aux surfaces pour lesquelles la prédiction du risque n'a pas lieu d'être (route, bâtiments, etc.)</atXTdesc>
<attwidth Sync="TRUE">50</attwidth>
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<attrlabl>SHAPE.AREA</attrlabl>
<attalias Sync="TRUE">SHAPE.AREA</attalias>
<attrtype>Double</attrtype>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<atXTdesc>Champ automatique donnant la surface de chaque polygone en m2</atXTdesc>
<attwidth Sync="TRUE">0</attwidth>
</attr>
<attr>
<attrlabl>SHAPE.LEN</attrlabl>
<attalias Sync="TRUE">SHAPE.LEN</attalias>
<attrtype>Double</attrtype>
<atprecis Sync="TRUE">0</atprecis>
<attscale Sync="TRUE">0</attscale>
<atXTdesc>Champ automatique donnant la longueur de chaque objet en m</atXTdesc>
<attwidth Sync="TRUE">0</attwidth>
</attr>
</detailed>
</eainfo>
<mdDateSt Sync="TRUE">20231101</mdDateSt>
<mdContact>
<rpXTBID>8f28a350-68f5-41a0-a78e-c8ad96b4bb2b</rpXTBID>
<rpIndName>- Système d'information du territoire genevois</rpIndName>
<rpXTIndLastName>Système d'information du territoire genevois</rpXTIndLastName>
<rpXTIndFirstName>-</rpXTIndFirstName>
<rpOrgName>Direction de l'information du territoire</rpOrgName>
<rpXTPartName>DT - Département du territoire</rpXTPartName>
<rpCntInfo>
<cntPhone>
<voiceNum>+4122 546 72 00</voiceNum>
</cntPhone>
<cntAddress>
<eMailAdd>geomatique@etat.ge.ch</eMailAdd>
</cntAddress>
<cntOnlineRes>
<linkage>https://www.ge.ch/organisation/direction-information-du-territoire</linkage>
</cntOnlineRes>
</rpCntInfo>
<rpRole>005</rpRole>
</mdContact>
<dqInfo>
<dqXTEdit>
<edtMethod>Divers fonds topographiques et données sur le sol</edtMethod>
<edtPrecision>10 mètres</edtPrecision>
</dqXTEdit>
<dqXTDisplay>
<dspScale>10000 à 25000</dspScale>
</dqXTDisplay>
</dqInfo>
<dataqual>
<lineage>
<procstep>
<procdesc Sync="TRUE">Metadata imported.</procdesc>
<srcused Sync="FALSE">withheld</srcused>
<date Sync="TRUE">20071025</date>
<time Sync="TRUE">08444000</time>
</procstep>
<procstep>
<procdesc Sync="TRUE">Metadata imported.</procdesc>
<srcused Sync="FALSE">withheld</srcused>
<date Sync="TRUE">20080819</date>
<time Sync="TRUE">14114300</time>
</procstep>
<procstep>
<procdesc Sync="TRUE">Metadata imported.</procdesc>
<srcused Sync="FALSE">withheld</srcused>
<date Sync="TRUE">20110711</date>
<time Sync="TRUE">14131400</time>
</procstep>
</lineage>
</dataqual>
<mdXTPublCatalog>Oui</mdXTPublCatalog>
</metadata>
