{"id":11348,"date":"2019-12-04T13:06:47","date_gmt":"2019-12-04T12:06:47","guid":{"rendered":"http:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=11348"},"modified":"2020-01-10T09:02:35","modified_gmt":"2020-01-10T08:02:35","slug":"invstiguem-lestat-de-la-riera-de-vallvidrera","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/invstiguem-lestat-de-la-riera-de-vallvidrera\/","title":{"rendered":"Investiguem l&#8217;estat de la riera de Vallvidrera"},"content":{"rendered":"<p>Dimarts 3 de desembre alumnes de l&#8217;assignatura de\u00a0 Biologia de 1r i 2n de Batxillerat de l\u2019<strong>Institut Joaquima Pla i Farreras<\/strong> de Sant Cugat del Vall\u00e9s han fet un <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/dinamica-dels-ecosistemes\/introduccio-a-la-limnologia-cursos-fluvials\/\" target=\"_blank\" rel=\"noopener noreferrer\">estudi limnol\u00f2gic de la riera de Vallvidrera<\/a> a l\u2019al\u00e7ada de la font de Can Campreci\u00f3s. Han seguit els protocols d\u2019inspecci\u00f3 de les campanyes del <a href=\"http:\/\/www.projecterius.cat\/\" target=\"_blank\" rel=\"noopener noreferrer\">Projecte Rius<\/a>.<\/p>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/12\/IMG_0586bis.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11352 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/12\/IMG_0586bis.jpg\" alt=\"\" width=\"281\" height=\"206\" \/><\/a>Han comen\u00e7at posant en com\u00fa quins aspectes podien investigar per con\u00e8ixer la qualitat ecol\u00f2gica de la riera. En aquesta introducci\u00f3 han calculat la superf\u00edcie de la conca hidrogr\u00e0fica, han esbrinat la geologia del terreny i per grups han revisat l\u2019inventari del material\u00a0 de camp necessari.<\/p>\n<p>L\u2019estudi es completa a partir de diverses fonts d\u2019informaci\u00f3: dades ambientals i fisicoqu\u00edmiques, qualitat del bosc de ribera i qualitat de l\u2019aigua a partir de bioindicadors.<\/p>\n<p>Un cop a la riera han recopilat diverses dades com coordenades UTM, temperatures, granulometria del substrat, velocitat, amplada, fond\u00e0ries, transpar\u00e8ncia, etc. \u00a0Posteriorment han pogut calcular el cabal amb l\u2019ajut del programa <a href=\"http:\/\/www.xtec.cat\/cda-cansantoi\/Cabalsec2.xls\" target=\"_blank\" rel=\"noopener noreferrer\">Cabalsec<\/a>. Han agafat mostres d\u2019aigua per analitzar al laboratori i obtenir par\u00e0metres com duresa, conductivitat, mineralitzaci\u00f3, concentraci\u00f3 de nitrits i fosfats. Amb els kits de valoraci\u00f3 del Projecte Rius han determinat el pH aix\u00ed com la concentraci\u00f3 de nitrats i oxigen dissolt.<\/p>\n<p><a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/12\/muntatge-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-11353 alignright\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/12\/muntatge-1.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/12\/muntatge-1.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2019\/12\/muntatge-1-150x150.jpg 150w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Seguidament, han observat la vegetaci\u00f3 de ribera i amb l\u2019ajut dels protocols QRISI han pogut valorar l\u2019\u00edndex de qualitat del bosc de ribera.<\/p>\n<p>Finalment els alumnes han agafat els salabrets per capturar macroinvertebrats aqu\u00e0tics. Els han portat al laboratori \u00a0i amb l\u2019ajut de lupes binoculars i fitxes de suport els han identificat i han obtingut els corresponents \u00edndexs biol\u00f2gics. A partir d\u2019aquestes dades han pogut determinar la qualitat de l\u2019aigua en base al <a href=\"http:\/\/www.xtec.cat\/cda-cansantoi\/index_bmwpc.xls\" target=\"_blank\" rel=\"noopener noreferrer\">protocol IBMWPC<\/a>. En aquest cas ha donat una qualitat mediocre.<\/p>\n<p>Posteriorment s\u2019han tornat a alliberat tots els animals a la riera sans i estalvis.<\/p>\n<p>Han demostrat que tenen molt bones maneres per fer ci\u00e8ncia i els agra\u00efm la seva implicaci\u00f3 en la recollida de deixalles de la riera que fem en col\u00b7laboraci\u00f3 amb\u00a0 l&#8217;iniciativa <a href=\"https:\/\/www.petjadaverda.org\/src\/controllers\/homeController.php\" target=\"_blank\" rel=\"noopener noreferrer\">Petjada Verda<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dimarts 3 de desembre alumnes de l&#8217;assignatura de\u00a0 Biologia de 1r i 2n de Batxillerat de l\u2019Institut Joaquima Pla i Farreras de Sant Cugat del Vall\u00e9s han fet un estudi limnol\u00f2gic de la riera de Vallvidrera a l\u2019al\u00e7ada de la font de Can Campreci\u00f3s. Han seguit els protocols d\u2019inspecci\u00f3 de les campanyes del Projecte Rius. [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":11351,"comment_status":"open","ping_status":"closed","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":"","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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[296,288,1,29],"tags":[],"class_list":["post-11348","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-collserola","category-ecosistemes","category-general","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/comments?post=11348"}],"version-history":[{"count":3,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11348\/revisions"}],"predecessor-version":[{"id":11403,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/posts\/11348\/revisions\/11403"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media\/11351"}],"wp:attachment":[{"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/media?parent=11348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/categories?post=11348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-json\/wp\/v2\/tags?post=11348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}