{"id":23259,"date":"2025-05-12T11:08:29","date_gmt":"2025-05-12T09:08:29","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/?p=23259"},"modified":"2025-05-12T11:08:29","modified_gmt":"2025-05-12T09:08:29","slug":"lecosistema-de-la-riera-de-vallvidrera","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/general\/lecosistema-de-la-riera-de-vallvidrera\/","title":{"rendered":"L&#8217;ecosistema de la riera de Vallvidrera"},"content":{"rendered":"<p style=\"text-align: justify;\">Dimecres 7 de maig de 2025 hem rebut l&#8217;alumnat de 6\u00e8 B de l&#8217;<a href=\"https:\/\/agora.xtec.cat\/escolamercerodoredamartorell\/\" target=\"_blank\" rel=\"noopener\">Escola Merc\u00e8 Rodoreda <\/a>de Martorell. El seu prop\u00f2sit era el d&#8217;<span style=\"font-family: inherit; font-size: 1em;\">investigar <\/span>la<strong> <a href=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/ambits\/dinamica-dels-ecosistemes\/la-riera\/\" target=\"_blank\" rel=\"noopener\">qualitat de la riera<\/a><\/strong><span style=\"font-family: inherit; font-size: 1em;\"> de Vallvidrera a la zona de L<\/span><span style=\"font-family: inherit; font-size: 1em;\">a Rierada.<\/span><\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-23269 alignleft\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/05\/muntatge2-187x300.jpg\" alt=\"\" width=\"187\" height=\"300\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/05\/muntatge2-187x300.jpg 187w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/05\/muntatge2.jpg 300w\" sizes=\"auto, (max-width: 187px) 100vw, 187px\" \/>En primer lloc han participat en una pluja d\u2019idees on han exposat quines serien algunes de les caracter\u00edstiques de la riera que caldria estudiar per con\u00e8ixer el seu estat ecol\u00f2gic. Han ent\u00e8s que, per avaluar aquest ecosistema, cal analitzar tant els factors ambientals (bi\u00f2top) com els \u00e9ssers vius que hi trobem (biocenosi). Seguidament, s\u2019han dividit en grups de treball, han revisat tot el material necessari per dur a terme el seu estudi i s\u2019han apropat fins a la Font de l&#8217;arbre caigut<strong>.<\/strong><\/p>\n<p style=\"text-align: justify;\">Arribats a la riera, els grups han comen\u00e7at a prendre mesures de la temperatura ambient i de l\u2019aigua, la direcci\u00f3 del corrent, l\u2019amplada, la fond\u00e0ria i la velocitat del curs fluvial, i d&#8217;altres propietats organol\u00e8ptiques de l&#8217;aigua. Despr\u00e9s s&#8217;han fixat en els arbres i plantes que formen el bosc de ribera en aquest tram i han concl\u00f2s el seu estudi capturant una bona mostra d&#8217;invertebrats aqu\u00e0tics amb l&#8217;ajuda dels salabrets i els pinzells: espiadimonis, barretets,\u00a0 gambetes d\u2019aigua dol\u00e7a, ef\u00edmeres, larva de mosca negra, sabaters, grill d&#8217;aigua i cucs de terra.<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-23273\" src=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/05\/20250507_115753bis-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/05\/20250507_115753bis-300x225.jpg 300w, https:\/\/serveiseducatius.xtec.cat\/cda-cansantoi\/wp-content\/uploads\/usu1385\/2025\/05\/20250507_115753bis.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>Per \u00faltim han tornat al Camp d\u2019Aprenentatge per aconseguir identificar-los amb l\u2019ajuda de lupes binoculars i fitxes de suport. Amb tot aix\u00f2 han pogut avaluar la qualitat de l\u2019aigua de la riera de Vallvidrera i s\u2019han sorpr\u00e8s en obtenir una \u201cqualitat mediocre\u201d. Arrel d\u2019aquestes conclusions han reflexionat sobre el nostre impacte en aquest i altres ecosistemes conscienciant-se de la import\u00e0ncia de mantenir-los nets.<\/p>\n<p style=\"text-align: justify;\">Per acabar s\u2019han tornat a alliberar sans i estalvis tots els animals capturats al seu h\u00e0bitat, on seguiran el seu cicle de vida. L&#8217;enhorabona per la feina realitzada, heu sigut uns grans investigadors i investigadores!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dimecres 7 de maig de 2025 hem rebut l&#8217;alumnat de 6\u00e8 B de l&#8217;Escola Merc\u00e8 Rodoreda de Martorell. El seu prop\u00f2sit era el d&#8217;investigar la qualitat de la riera de Vallvidrera a la zona de La Rierada. En primer lloc han participat en una pluja d\u2019idees on han exposat quines serien algunes de les caracter\u00edstiques [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":23265,"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":"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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