{"id":12975,"date":"2023-04-24T09:09:07","date_gmt":"2023-04-24T07:09:07","guid":{"rendered":"https:\/\/serveiseducatius.xtec.cat\/cda-altbergueda\/?p=12975"},"modified":"2023-04-28T09:45:21","modified_gmt":"2023-04-28T07:45:21","slug":"estudi-dun-ecosistema-forestal","status":"publish","type":"post","link":"https:\/\/serveiseducatius.xtec.cat\/cda-altbergueda\/general\/estudi-dun-ecosistema-forestal\/","title":{"rendered":"ESTUDI D&#8217;UN ECOSISTEMA FORESTAL"},"content":{"rendered":"<p>El passat dilluns 17 d&#8217;abril, amb l&#8217;alumnat de 1r i 2n de Batxillerat de l&#8217;Institut Pere Fontdevila de Gironella vam fer un estudi a nivell ecosist\u00e8mic del bosc de pi pinyoner que tenen al costat del centre, el Bosc de Cal Ramons.<\/p>\n<p>El repte que se&#8217;ls va plantejar va ser el d&#8217;estudiar quina era la biomassa, biodiversitat i producci\u00f3 del bosc que veien des de la finestra del centre, per determinar diverses coses: si era un bosc gestionat, si era un bosc madur, si era un bosc productiu i finalment si calia gestionar-lo o no.<\/p>\n<p>Totes aquestes preguntes les vam poder contestar estudiant 3 parcel\u00b7les diferents dins el mateix bosc: una parcel\u00b7la gestionada, una parcel\u00b7la no gestionada, i una parcel\u00b7la poc productiva (sobre roca mare), per tal d&#8217;adonar-se dels diferents factors que condicionen el creixement del bosc, i tamb\u00e9 la necessitat de gestionar-lo per tal d&#8217;obtenir un bon rendiment del bosc i un entorn segur enfront als incendis forestals, en un context de canvi clim\u00e0tic, i de sequera com el que tenim.<\/p>\n<p>Les conclusions van ser clares:<\/p>\n<ul>\n<li>Cal gestionar el bosc per tal d&#8217;aconseguir-ne un bon rendiment: les aclarides de bosc fan que els individus puguin cr\u00e9ixer m\u00e9s, obtenint m\u00e9s biomassa i producci\u00f3.<\/li>\n<li>\u00c9s un bosc que encara no ha arribat a la seva edat madura: les DBH aconseguides encara s\u00f3n &lt;40 cm.<\/li>\n<li>El factor limitant del creixement del bosc \u00e9s clarament la precipitaci\u00f3: la producci\u00f3 actual del bosc era de 6,4 t\/ha\/any, i potencialment per precipitaci\u00f3 en podria tenir 10,8, i per la temperatura 16,7.<\/li>\n<li>Un altre factor limitant que vam descobrir va ser la falta de profunditat del s\u00f2l: la parcel\u00b7la que creixia sobre la roca mare presentava una producci\u00f3 10 vegades menor que la parcel\u00b7la no gestionada.<\/li>\n<li>El bosc, tot i ser un embornal de carboni, no \u00e9s suficient per obtenir un balan\u00e7 0 de les emissions de CO2.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>El passat dilluns 17 d&#8217;abril, amb l&#8217;alumnat de 1r i 2n de Batxillerat de l&#8217;Institut Pere Fontdevila de Gironella vam fer un estudi a nivell ecosist\u00e8mic del bosc de pi pinyoner que tenen al costat del centre, el Bosc de Cal Ramons. El repte que se&#8217;ls va plantejar va ser el d&#8217;estudiar quina era la 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