{"id":20710,"date":"2018-03-09T09:10:09","date_gmt":"2018-03-09T09:10:09","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/analisis-economico-y-ambiental-de-la-contaminacion-por-nitratos-en-el-regadio\/"},"modified":"2018-03-09T09:10:09","modified_gmt":"2018-03-09T09:10:09","slug":"analisis-economico-y-ambiental-de-la-contaminacion-por-nitratos-en-el-regadio","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/zaragoza\/analisis-economico-y-ambiental-de-la-contaminacion-por-nitratos-en-el-regadio\/","title":{"rendered":"An\u00e1lisis econ\u00f3mico y ambiental de la contaminaci\u00f3n por nitratos en el regadio"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Yolanda Martinez Martinez <\/strong><\/h2>\n<p>En el \u00faltimo siglo, la progresiva capitalizaci\u00f3n e intensificaci\u00f3n de la agricultura  ha dado lugar a un fuerte aumento en la utilizaci\u00f3n de fertilizantes y plaguicidas de origen industrial. Estos avances tecnol\u00f3gicos han incrementado considerablemente los rendimientos de las actividades agrarias, aunque tal incremento ha ido acompa\u00f1ado del deterioro de la calidad del suelos y aguas, llegando a constituir la causa principal de la degradaci\u00f3n de la calidad de agua en muchas \u00e1reas del continente europeo.  uno de los problemas de contaminaci\u00f3n de origen difuso que provoca la sobreutilizaci\u00f3n de fertilizantes es la contaminaci\u00f3n del agua por nitratos, que adem\u00e1s de tener efectos negativos sobre la calidad del agua, constituye una amenaza para la supervivencia de los ecosistemas acu\u00e1ticos e incluso para la salud humana. En este trabajo se analizan los problemas de contaminaci\u00f3n por nitratos en una zona de regad\u00edo situada en el valle medio del ebro. El an\u00e1lisis se realiza desde una perspectiva econ\u00f3mica y en un contexto din\u00e1mico. el instrumento matem\u00e1ticoo b\u00e1sico empleado es la programaci\u00f3n din\u00e1mica o teor\u00eda del control \u00f3ptimo, y para determinar las funciones de rendimiento y contaminaci\u00f3n difusa por nitratos se utiliza el paquete de simulaci\u00f3n de cultivos epic.  el modelo planteado representa el problema de decisi\u00f3n del agricultor sobre las actividades agr\u00edcolas ligadas a la gesti\u00f3n del agua y a la contaminaci\u00f3n, en el que se considera que el agricultor maximiza el valor actual del margen neto de la explotaci\u00f3n. El agricultor selecciona las asignaciones de fertilizante nitrogenado y de agua de riego a lo largo de un horizonte temporal, sujeto a un conjunto de restricciones de producci\u00f3n y de disponibilidad de factores productivos. Una vez construido el modelo, se estudian los efectos y la eficiencia de distintas medidas de pol\u00edtica ambiental para controlar la contaminaci\u00f3n por nitr\u00f3geno: aumento del precio de<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>An\u00e1lisis econ\u00f3mico y ambiental de la contaminaci\u00f3n por nitratos en el regadio<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 An\u00e1lisis econ\u00f3mico y ambiental de la contaminaci\u00f3n por nitratos en el regadio <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Yolanda Martinez Martinez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 16\/12\/2002<\/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>Jose Albiac Murillo<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Gutierrez huerta Mar\u00eda  jose <\/li>\n<li>richard Woodward (vocal)<\/li>\n<li>ranan-ulrich Goetz (vocal)<\/li>\n<li>catarina Roseta palma (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Yolanda Martinez Martinez En el \u00faltimo siglo, la progresiva capitalizaci\u00f3n e intensificaci\u00f3n de la agricultura ha dado [&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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