Le projet TraDeVi propose une approche syst\u00e9mique et transversale du d\u00e9p\u00e9rissement du vignoble, aux \u00e9chelles du cep, de la parcelle et de l\u2019exploitation viticole. Il vise \u00e0 identifier les facteurs biotiques, abiotiques et techniques qui contribuent \u00e0 l\u2019affaiblissement et au d\u00e9p\u00e9rissement des ceps. En adaptant la dendrochronologie \u00e0 la vigne, nous reconstruirons des trajectoires de croissance et chercherons \u00e0 identifier les \u00e9v\u00e8nements susceptibles d\u2019avoir favoris\u00e9 ou d\u00e9clench\u00e9 le d\u00e9p\u00e9rissement. Nous caract\u00e9riserons les processus \u00e9cophysiologiques (statuts hydrique et carbon\u00e9), les conditions de structure et d\u2019\u00e9tat biologique du sol et les effets du cort\u00e8ge de bioagresseurs qui peuvent provoquer l\u2019affaiblissement des ceps. Ainsi nous construirons des indicateurs d\u2019\u00e9tat sanitaire ou physiologique de la plante et d\u2019\u00e9tat physique ou biologique du sol qui seront utilis\u00e9s pour un diagnostic sur des exploitation viticoles, o\u00f9 les d\u00e9terminants techniques, organisationnels et \u00e9conomiques seront \u00e9galement consid\u00e9r\u00e9s. La mod\u00e9lisation sera utilis\u00e9e comme outil d\u2019int\u00e9gration et de diffusion des connaissances scientifiques et expertes sur le d\u00e9p\u00e9rissement.<\/p>\n
Plus sp\u00e9cifiquement pour le LISAH, il s’agit de proposer et de tester des indicateurs li\u00e9s aux caract\u00e9ristiques intrins\u00e8ques du sol (profondeur, structure, r\u00e9serve en eau, ..), en \u00e9troite relation avec les aspects biologie du sol.<\/p>\n","protected":false},"author":1,"featured_media":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","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":"","ast-disable-related-posts":"","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":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"categories":[82],"class_list":["post-1602","projets-de-recherche","type-projets-de-recherche","status-publish","hentry","category-projet-termine"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/projets-de-recherche\/1602","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/projets-de-recherche"}],"about":[{"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/types\/projets-de-recherche"}],"author":[{"embeddable":true,"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":0,"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/projets-de-recherche\/1602\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/media?parent=1602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.umr-lisah.fr\/fr\/wp-json\/wp\/v2\/categories?post=1602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}