<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>Le 31 juil. 10 à 10:28, hpmt a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Pierre-Alain Dorange a écrit , Le 31/07/2010 09:46:<br><blockquote type="cite">Je n'ai pas réellement réfléchis à la chose mais comment définir un<br></blockquote><blockquote type="cite">bassin versant ?<br></blockquote><br>On a la chance, en France, que la gestion administrative de l'eau soit articulée par bassin versant ; il n'y a que 6 bassins versants sur l'ensemble de l'hexagone, ce qui risque de faire des relations "bassin versant" plutôt dodues :<br>Adour-Garonne<br>Artois Picardie<br>Loire-Bretagne<br>Rhin-Meuse<br>Rhône-Méditerranée<br>Seine-Normandie<br><br>Ref :<br><a href="http://www.lesagencesdeleau.fr/francais/agences/agenc.php">http://www.lesagencesdeleau.fr/francais/agences/agenc.php</a><br></div></blockquote><div><br></div>Non là tu parles des "bassin administratifs" (le regroupement de plusieurs bassins au sein d'une entité administrative). </div><div>Moi je parle de bassin versant géographique : il y en a 1 par fleuve.</div><div><br></div><div>Par exemple le comité de bassin Adour-Garonne regroupe de nombreux bassins versants qui sont différents :</div><div>L'Adour</div><div>La Garonne</div><div>La Charente</div><div>Et les nombreux fleuves cotiers atlantique</div><div><br></div><div>Une carte (que le comité de basin appelle sous-bassins hydrographique) :</div><div><<a href="http://www.eau-adour-garonne.fr/page.asp?page=1548">http://www.eau-adour-garonne.fr/page.asp?page=1548</a>></div><div><br></div><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; 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"><div><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Times; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Times; font-size: 13px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Times; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; color: rgb(0, 0, 0); font-family: Times; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div><div><div><div><font class="Apple-style-span" color="#000000">-- </font></div><div><font class="Apple-style-span" color="#000000">Pierre-Alain Dorange, </font></div><div>Blog Citoyen de Cognac : <<a href="http://cognac-citoyen.blogspot.com/">http://cognac-citoyen.blogspot.com/</a>></div></div></div></div></span></div></span></div></span></div></span></div><font class="Apple-style-span" face="Times" size="3"><span class="Apple-style-span" style="font-size: 12px; ">Twitter : <<a href="https://twitter.com/padorange">https://twitter.com/padorange</a>> - Facebook : <<a href="http://www.facebook.com/pa.dorange">http://www.facebook.com/pa.dorange</a>></span></font></span></div></div></div></div></span></div></span></div></span></div></span></div></span> </div><br></body></html>