{"id":28935,"date":"2004-01-03T00:00:00","date_gmt":"2004-01-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/elementos-traza-y-nutrientes-en-plantas-y-suelos-afectados-por-el-vertido-minero-de-aznalcollar\/"},"modified":"2004-01-03T00:00:00","modified_gmt":"2004-01-03T00:00:00","slug":"elementos-traza-y-nutrientes-en-plantas-y-suelos-afectados-por-el-vertido-minero-de-aznalcollar","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/sevilla\/elementos-traza-y-nutrientes-en-plantas-y-suelos-afectados-por-el-vertido-minero-de-aznalcollar\/","title":{"rendered":"Elementos traza y nutrientes en plantas y suelos afectados por el vertido minero de aznalcollar"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Paula Madejon Rodriguez <\/strong><\/h2>\n<p>La inmediata retirada de los lodos mineros que cubrieron en 1998 cerca de 4300 ha de las cuencas de los r\u00edos agrio y guadiamar, no impidi\u00f3 que los suelos afectados presenten todav\u00eda (casi cuatro a\u00f1os m\u00e1s tarde), una importante contaminaci\u00f3n residual por metales. Se ha estudiado, durante el oto\u00f1o de los a\u00f1os 1999, 2000 y 2001, la acumulaci\u00f3n de nutrientes y elementos traza as, cd, cu, fe, mn, ni, pb, tl y zn en   diversas especies vegetales. Concretamente, se analiz\u00f3 la parte a\u00e9rea de una gram\u00ednea espont\u00e1nea, grama (cynodon dactylon (l.) Pers. Var. Affinis), muy abundante en la cuenca del guadiamar; hojas y tallos de \u00e1lamo blanco (populus alba l.), \u00e1Rbol t\u00edpico de los bosques de ribera; hojas, tallos y frutos de acebuche (olea europaea l.) Y encina (quercus rotundifolia lam.), \u00e1Rboles representativos del bosque mediterr\u00e1neo y diversas fracciones (ra\u00edz, tallo, hoja, cap\u00edtulo y semilla) de un cultivo de girasol (helianthuus annuus l.). En general, la presencia de elementos traza en los suelos motiv\u00f3 que las plantas afectadas presentaran en sus tejidos concentraciones m\u00e1s bajas de n, p, y en ocasiones k, y m\u00e1s altas de s y ca, respecto a las no afectadas. Las concentraciones de elementos traza de los tejidos vegetales fueron mayores en los suelos afectados que en los suelos no afectados, excepto en el caso del cu. Los tejidos de la grama, encina y acebuche (hojas y frutos) no presentaron concentraciones fitot\u00f3xicas o t\u00f3xicas (ganado) de elementos traza, exceptuando el cd de la grama, que super\u00f3 ocasionalmente el l\u00edmite de toxicidad para el ganado. Sin embargo, en las muestras vegetales sin descontaminar, se registraron, ocasionalmente, concentraciones prohibitivas de as, cd y pb, y en menor medida de cu y zn, lo que justifica la prohibici\u00f3n del pastoreo, y del uso de ramones de acebuche y encina, no s\u00f3lo en la zona afectada, sino tambi\u00e9n en zonas adyacentes, donde la contaminaci\u00f3n atmosf\u00e9rica (polvo adherido a lo<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Elementos traza y nutrientes en plantas y suelos afectados por el vertido minero de aznalcollar<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Elementos traza y nutrientes en plantas y suelos afectados por el vertido minero de aznalcollar <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Paula Madejon Rodriguez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Sevilla<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/03\/2004<\/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> Murillo Carpio Jos\u00e9 Manuel<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: guillermo Paneque guerrero <\/li>\n<li>benito Valdes castrillon (vocal)<\/li>\n<li>joan Barcelo coll (vocal)<\/li>\n<li>Francisco de paula Cabrera capitan (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Paula Madejon Rodriguez La inmediata retirada de los lodos mineros que cubrieron en 1998 cerca de 4300 [&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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