{"id":25202,"date":"2026-03-23T10:13:37","date_gmt":"2026-03-23T09:13:37","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=25202"},"modified":"2026-03-23T10:39:33","modified_gmt":"2026-03-23T09:39:33","slug":"descobrim-els-secrets-del-delta-del-llobregat","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/portada\/descobrim-els-secrets-del-delta-del-llobregat\/","title":{"rendered":"Descobrim els secrets del Delta del Llobregat"},"content":{"rendered":"

Dimarts 17 de mar\u00e7 del 2026 l’alumnat de primer d’ESO de l’institut escola Pere Lliscart<\/a> de l’Hospitalet de Llobregat ha descobert els secrets del Delta del Llobregat<\/a>! La zona de la desembocadura del riu que tenen for\u00e7a a prop del seu centre educatiu.<\/p>\n

Han comen\u00e7at fent una valoraci\u00f3 de tots els impactes antr\u00f2pics al voltant d\u2019aquesta zona protegida: l\u2019ampliaci\u00f3 del Port de Barcelona, la depuradora de El Prat de Llobregat, les f\u00e0briques del pol\u00edgon de la Zona Franca i, per descomptat, l\u2019Aeroport Josep Tarradellas Barcelona \u2013 El Prat. Tamb\u00e9 han mesurat la contaminaci\u00f3 ac\u00fastica provocada principalment per avions de passatgers i\u00a0 de mercaderies. Segons els seus c\u00e0lculs, cada dia sobrevolen aquest espai gaireb\u00e9 un miler d\u2019avions!<\/p>\n

Despr\u00e9s d\u2019esmorzar en una zona de p\u00edcnic, han iniciat un recorregut seguint el curs del riu identificant les plantes m\u00e9s caracter\u00edstiques del delta com ara el tamariu, l\u2019\u00e0lber, el cany\u00eds o el jonc. Tamb\u00e9 han reconegut altres plantes com l\u2019esbarzer, la ginesta, el pi pinyoner o l\u2019eucaliptus, i han descobert que la canya \u00e9s una esp\u00e8cie invasora provinent d\u2019\u00c0sia. Finalment, han fet una valoraci\u00f3 de la qualitat ecol\u00f2gica de la vegetaci\u00f3 de ribera seguint el protocol QRISI del\u00a0Projecte Rius.<\/a><\/p>\n

Han observat que el cabal del Llobregat \u00e9s clarament superior a causa de les pluges persistents de les darreres setmanes. All\u00ed han pogut observar corbs marins i un bernat pescaire, mentre extr\u00e8iem una mostra d\u2019aigua per analitzar. A continuaci\u00f3, n\u2019han pogut determinar una s\u00e8rie de par\u00e0metres com la temperatura, la transpar\u00e8ncia, l\u2019olor, la pres\u00e8ncia d\u2019escuma i la seva densitat, d\u2019aproximadament 1,002 g\/cm3<\/sup>. Tal com esperaven, sembla que l\u2019aigua analitzada t\u00e9 molta terbolesa a causa del sediment en suspensi\u00f3, la pres\u00e8ncia d\u2019algues i de contaminants, amb una densitat gaireb\u00e9 id\u00e8ntica a l\u2019aigua dol\u00e7a a causa del poc aiguabarreig amb l\u2019aigua marina.<\/p>\n\r\n\t

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    Despr\u00e9s han arribat a l\u2019aguait de Cal Tet, on gr\u00e0cies als prism\u00e0tics i a un telescopi ornitol\u00f2gic han seguit observant un munt d\u2019ocells de zones humides: \u00e0nec collverd, \u00e0nec blanc, oca comuna, cuereta, flamenc, bernat pescaire, martinet, a m\u00e9s d\u2019algunes gavines. Tamb\u00e9 s\u2019han sorpr\u00e8s amb la pres\u00e8ncia de dues esp\u00e8cies de tortuga: la tortuga de florida. \u00c9s una esp\u00e8cie ex\u00f2tica i invasora molt abundant als nostres ecosistemes.<\/p>\n

    L\u2019enhorabona per la vostra gran tasca! Heu estat uns grans exploradors i exploradores plens d\u2019il\u00b7lusi\u00f3 i ganes d\u2019aprendre. Fins aviat!<\/p>\n","protected":false},"excerpt":{"rendered":"

    Dimarts 17 de mar\u00e7 del 2026 l’alumnat de primer d’ESO de l’institut escola Pere Lliscart de l’Hospitalet de Llobregat ha descobert els secrets del Delta del Llobregat! La zona de la desembocadura del riu que tenen for\u00e7a a prop del seu centre educatiu. Han comen\u00e7at fent una valoraci\u00f3 de tots els impactes antr\u00f2pics al voltant […]<\/p>\n","protected":false},"author":3,"featured_media":25213,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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