{"id":37772,"date":"1998-01-01T00:00:00","date_gmt":"1998-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/el-banco-de-semillas-del-suelo-en-comunidades-pratenses-de-montana-con-distintos-regimenes-de-gestion-agricola\/"},"modified":"1998-01-01T00:00:00","modified_gmt":"1998-01-01T00:00:00","slug":"el-banco-de-semillas-del-suelo-en-comunidades-pratenses-de-montana-con-distintos-regimenes-de-gestion-agricola","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/el-banco-de-semillas-del-suelo-en-comunidades-pratenses-de-montana-con-distintos-regimenes-de-gestion-agricola\/","title":{"rendered":"El banco de semillas del suelo en comunidades pratenses de monta\u00f1a con distintos regimenes de gestion agricola."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Reine Vi\u00f1ales Ramon Juan <\/strong><\/h2>\n<p>Se estudia el contenido de semillas viables del suelo de varias comunidades pratenses de monta\u00f1a, sometidas a distintos niveles de intensificaci\u00f3n agr\u00edcola, en la zona de fragen (pirineos centrales) y en kaserstattalm (alpes orientales). Para ello, en distintos momentos, se tomaron muestras de suelo, que tras un proceso de reducci\u00f3n, fueron puestas a germinar en un ambiente controlado. La composici\u00f3n de los bancos se estim\u00f3 mediante la identificaci\u00f3n y el conteo de las pl\u00e1ntulas germinadas en estas fracciones.  los suelos han presentado importantes cantidades de semillas viables enterradas, que oscilan entre las 6.029 y las 54.517 semillas\/m2 seg\u00fan el manejo agr\u00edcola al que est\u00e1 sometido la comunidad: los bancos de los prados m\u00e1s intensivos poseen menores cantidades de semillas y de especies que los extensivos. La composici\u00f3n taxon\u00f3mica de los bancos se ha caracterizado por la presencia en cada comunidad de una o dos especies claramente dominantes, entre las que destacan: plantago major, verbena officinalis, medicago lupulina y stellaria media en los prados pirenaicos y calluna vulgaris, erica herbacea y poa alpina en los alpinos.  sobre la misma red muestral del banco, se recolect\u00f3 la biomasa para el an\u00e1lisis de la vegetaci\u00f3n a\u00e9rea, en los momentos de m\u00e1ximo desarrollo vegetativo de cada comunidad. La comparaci\u00f3n entre las semillas enterradas y las plantas adultas arroja grandes diferencias flor\u00edsticas, sobre todo en los prados con r\u00e9gimen de explotaci\u00f3n intensivo, donde se producen semillas que no se incorporan al banco. Con los resultados obtenidos, se analiz\u00f3 c\u00f3mo variaron entre las distintas comunidades: la riqueza espec\u00edfica, la diversidad, la calidad forrajera, la persistencia de las semillas en el suelo, el tipo de dispersi\u00f3n, y la forma de vida de las especies del banco y de la vegetaci\u00f3n a\u00e9rea.  para averiguar la capacidad regenerativa del banco de semillas, se efectu\u00f3 un seguimiento de l<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>El banco de semillas del suelo en comunidades pratenses de monta\u00f1a con distintos regimenes de gestion agricola.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 El banco de semillas del suelo en comunidades pratenses de monta\u00f1a con distintos regimenes de gestion agricola. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Reine Vi\u00f1ales Ramon Juan <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Lleida<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1998<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Cristina Chocarro Gomez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jordi Recasens GuinJuan <\/li>\n<li>Carlos Cantero Mart\u00ednez (vocal)<\/li>\n<li>Antonio Gomez Sal (vocal)<\/li>\n<li>Daniel G\u00f3mez Garc\u00eda (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Reine Vi\u00f1ales Ramon Juan Se estudia el contenido de semillas viables del suelo de varias comunidades pratenses [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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 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