{"id":257,"date":"2020-09-15T17:39:00","date_gmt":"2020-09-15T15:39:00","guid":{"rendered":"https:\/\/geopard.tech\/?p=257"},"modified":"2024-12-01T21:59:38","modified_gmt":"2024-12-01T20:59:38","slug":"utilisation-de-lindice-de-vegetation-par-difference-normalisee-ndvi-en-agriculture-de-precision","status":"publish","type":"post","link":"https:\/\/geopard.tech\/fr\/blog\/use-of-ndvi-normalized-difference-vegetation-index-in-precision-agriculture\/","title":{"rendered":"Quel indice de v\u00e9g\u00e9tation est le plus adapt\u00e9 \u00e0 l'agriculture de pr\u00e9cision ?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Il existe plusieurs indices de v\u00e9g\u00e9tation couramment utilis\u00e9s, notamment l&#039;indice de v\u00e9g\u00e9tation par diff\u00e9rence normalis\u00e9e (NDVI), l&#039;indice de v\u00e9g\u00e9tation \u00e0 large gamme dynamique (WDRVI) et l&#039;indice de chlorophylle verte (GCI).<\/p>\r\n<ul>\r\n<li>Quel indice de v\u00e9g\u00e9tation refl\u00e8te le plus de d\u00e9tails ?<\/li>\r\n<li>Quel indice de v\u00e9g\u00e9tation met le mieux en \u00e9vidence les variations ?<\/li>\r\n<li>L&#039;indice NDVI est-il le meilleur de la famille des indices de v\u00e9g\u00e9tation multispectraux\u00a0?<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Ces questions sont connues et reviennent tr\u00e8s souvent. Examinons-les.<\/p>\r\n\t\t<div data-elementor-type=\"section\" data-elementor-id=\"11114\" class=\"elementor elementor-11114\" data-elementor-post-type=\"elementor_library\">\n\t\t\t<div class=\"elementor-element elementor-element-dfe995c e-flex e-con-boxed e-con e-parent\" data-id=\"dfe995c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b9ca021 elementor-arrows-position-inside elementor-pagination-position-outside elementor-widget elementor-widget-image-carousel\" data-id=\"b9ca021\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;slides_to_show&quot;:&quot;1&quot;,&quot;navigation&quot;:&quot;both&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;autoplay_speed&quot;:5000,&quot;infinite&quot;:&quot;yes&quot;,&quot;effect&quot;:&quot;slide&quot;,&quot;speed&quot;:500}\" data-widget_type=\"image-carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-carousel-wrapper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Bildkarusell\" dir=\"ltr\" data-no-translation-aria-label=\"\">\n\t\t\t<div class=\"elementor-image-carousel swiper-wrapper swiper-image-stretch\" aria-live=\"off\">\n\t\t\t\t\t\t\t\t<div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"1 av 4\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/AnyConv.com__image-4.webp?fit=1600%2C832&amp;ssl=1\" alt=\"Carte des zones agricoles NDVI\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"2 av 4\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/AnyConv.com__image-1-1.webp?fit=1600%2C832&amp;ssl=1\" alt=\"Carte des zones agricoles du WDRVI\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"3 av 4\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/AnyConv.com__image-2-1.webp?fit=1600%2C834&amp;ssl=1\" alt=\"Carte des zones agricoles du GCI\" \/><\/figure><\/div><div class=\"swiper-slide\" role=\"group\" aria-roledescription=\"slide\" aria-label=\"4 av 4\" data-no-translation-aria-label=\"\"><figure class=\"swiper-slide-inner\"><img decoding=\"async\" class=\"swiper-slide-image\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/AnyConv.com__image-3-1.webp?fit=1600%2C832&amp;ssl=1\" alt=\"Carte des zones agricoles RCI\" \/><\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-circle-left\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 504C119 504 8 393 8 256S119 8 256 8s248 111 248 248-111 248-248 248zm28.9-143.6L209.4 288H392c13.3 0 24-10.7 24-24v-16c0-13.3-10.7-24-24-24H209.4l75.5-72.4c9.7-9.3 9.9-24.8.4-34.3l-11-10.9c-9.4-9.4-24.6-9.4-33.9 0L107.7 239c-9.4 9.4-9.4 24.6 0 33.9l132.7 132.7c9.4 9.4 24.6 9.4 33.9 0l11-10.9c9.5-9.5 9.3-25-.4-34.3z\"><\/path><\/svg>\t\t\t\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\">\n\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-circle-right\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8c137 0 248 111 248 248S393 504 256 504 8 393 8 256 119 8 256 8zm-28.9 143.6l75.5 72.4H120c-13.3 0-24 10.7-24 24v16c0 13.3 10.7 24 24 24h182.6l-75.5 72.4c-9.7 9.3-9.9 24.8-.4 34.3l11 10.9c9.4 9.4 24.6 9.4 33.9 0L404.3 273c9.4-9.4 9.4-24.6 0-33.9L271.6 106.3c-9.4-9.4-24.6-9.4-33.9 0l-11 10.9c-9.5 9.6-9.3 25.1.4 34.4z\"><\/path><\/svg>\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"swiper-pagination\"><\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\r\n<h2>Qu&#039;est-ce que l&#039;indice de v\u00e9g\u00e9tation\u00a0?<\/h2>\r\n<p>L&#039;indice de v\u00e9g\u00e9tation est une mesure num\u00e9rique qui quantifie la quantit\u00e9 et l&#039;\u00e9tat de la v\u00e9g\u00e9tation dans une zone sp\u00e9cifique \u00e0 partir de donn\u00e9es de t\u00e9l\u00e9d\u00e9tection.<\/p>\r\n<p>Les indices de v\u00e9g\u00e9tation sont calcul\u00e9s en combinant diff\u00e9rentes bandes spectrales issues d&#039;images satellites ou de photographies a\u00e9riennes, qui refl\u00e8tent la quantit\u00e9 d&#039;\u00e9nergie absorb\u00e9e et r\u00e9fl\u00e9chie par les plantes dans les r\u00e9gions visibles et proches infrarouges du spectre \u00e9lectromagn\u00e9tique.<\/p>\r\n<p>Ces indices peuvent fournir des informations sur la sant\u00e9, la densit\u00e9 et la productivit\u00e9 de la v\u00e9g\u00e9tation, ce qui est utile pour un large \u00e9ventail d&#039;applications, notamment l&#039;agriculture, la foresterie, la gestion des terres et la surveillance du climat.<\/p>\r\n<h2>Qu&#039;est-ce que l&#039;indice de v\u00e9g\u00e9tation par diff\u00e9rence normalis\u00e9e (<strong>NDVI)<\/strong>?<\/h2>\r\n<p><strong>NDVI (Indice de v\u00e9g\u00e9tation par diff\u00e9rence normalis\u00e9e)<\/strong>\u00a0est la plus connue et la plus largement utilis\u00e9e dans les industries li\u00e9es \u00e0 la biomasse et \u00e0 la t\u00e9l\u00e9d\u00e9tection.<\/p>\r\n<p>La saturation de l&#039;indice NDVI nuit \u00e0 la pr\u00e9cision de la distinction de la v\u00e9g\u00e9tation aux pics de biomasse. Un autre probl\u00e8me li\u00e9 \u00e0 l&#039;indice NDVI est l&#039;influence du bruit du sol sur les premiers stades de d\u00e9veloppement des cultures.<\/p>\r\n<p>Il est calcul\u00e9 \u00e0 l&#039;aide de donn\u00e9es de t\u00e9l\u00e9d\u00e9tection par satellite ou a\u00e9rienne, sur la base de la diff\u00e9rence de r\u00e9flectance de deux bandes spectrales : le proche infrarouge (NIR) et la bande rouge.<\/p>\r\n\r\n\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\" style=\"text-align: center;\"><strong><em>La formule NDVI est NDVI = (NIR-Rouge) \/ (NIR+Rouge).<\/em><\/strong><\/p>\r\n<p>O\u00f9 NIR repr\u00e9sente la r\u00e9flectance dans la bande proche infrarouge et Red la r\u00e9flectance dans la bande rouge.<\/p>\r\n<p>L&#039;indice NDVI obtenu varie de -1 \u00e0 +1, les valeurs les plus \u00e9lev\u00e9es indiquant une forte densit\u00e9 de v\u00e9g\u00e9tation. Une valeur nulle indique l&#039;absence de v\u00e9g\u00e9tation, tandis que les valeurs n\u00e9gatives indiquent des plans d&#039;eau ou d&#039;autres surfaces non v\u00e9g\u00e9talis\u00e9es.<\/p>\r\n<p>Les valeurs NDVI proches de +1 indiquent une v\u00e9g\u00e9tation dense et saine, tandis que les valeurs proches de z\u00e9ro indiquent une v\u00e9g\u00e9tation clairsem\u00e9e ou des zones pr\u00e9sentant un stress ou des dommages importants.<\/p>\r\n<p>Il est largement utilis\u00e9 dans les applications agricoles et \u00e9cologiques pour surveiller la croissance de la v\u00e9g\u00e9tation, estimer les rendements des cultures et \u00e9valuer la sant\u00e9 et la productivit\u00e9 des for\u00eats et autres \u00e9cosyst\u00e8mes.<\/p>\r\n<p>Il peut \u00e9galement \u00eatre utilis\u00e9 pour d\u00e9tecter et surveiller la s\u00e9cheresse, l&#039;\u00e9rosion des sols et d&#039;autres facteurs environnementaux qui affectent le couvert v\u00e9g\u00e9tal.<\/p>\r\n<p>Elle se calcule, par exemple, en soustrayant la r\u00e9flectance dans le proche infrarouge (NIR) de la r\u00e9flectance dans le rouge, puis en divisant le r\u00e9sultat par la somme des deux. La valeur obtenue varie de -1 \u00e0 +1, les valeurs les plus \u00e9lev\u00e9es indiquant une v\u00e9g\u00e9tation plus dense.<\/p>\r\n\r\n\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">De plus, l&#039;id\u00e9e de <strong>WDRVI (Indice de v\u00e9g\u00e9tation \u00e0 large plage dynamique)<\/strong>\u00a0a \u00e9t\u00e9 cr\u00e9\u00e9 pour r\u00e9soudre les probl\u00e8mes de saturation de l&#039;indice NDVI. Il a \u00e9t\u00e9 obtenu en \u00e9largissant la gamme des valeurs possibles de l&#039;indice WDRVI gr\u00e2ce \u00e0 l&#039;introduction du coefficient math\u00e9matique (\u03b1).<\/p>\r\n<p><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" data-attachment-id=\"1466\" data-permalink=\"https:\/\/geopard.tech\/fr\/blog\/use-of-ndvi-normalized-difference-vegetation-index-in-precision-agriculture\/vegation_2\/\" data-orig-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_2.webp?fit=1318%2C777&amp;ssl=1\" data-orig-size=\"1318,777\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"vegetation filed data with geopark agriculture map 2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_2.webp?fit=1024%2C604&amp;ssl=1\" class=\"alignnone wp-image-1466\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_2.webp?resize=810%2C478&#038;ssl=1\" alt=\"L&#039;utilisation de l&#039;indice NDVI (Normalized Difference Vegetation Index)\" width=\"810\" height=\"478\" srcset=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_2.webp?resize=1024%2C604&amp;ssl=1 1024w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_2.webp?resize=300%2C177&amp;ssl=1 300w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_2.webp?resize=768%2C453&amp;ssl=1 768w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_2.webp?resize=1200%2C707&amp;ssl=1 1200w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_2.webp?w=1318&amp;ssl=1 1318w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">La formule NDVI (indice de v\u00e9g\u00e9tation par diff\u00e9rence normalis\u00e9e) a \u00e9t\u00e9 transform\u00e9e en WDRVI = (\u03b1\u2217NIR-Rouge) \/ (\u03b1\u2217NIR+Rouge).<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" decoding=\"async\" data-attachment-id=\"1467\" data-permalink=\"https:\/\/geopard.tech\/fr\/blog\/use-of-ndvi-normalized-difference-vegetation-index-in-precision-agriculture\/vegation_3\/\" data-orig-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_3.webp?fit=1316%2C783&amp;ssl=1\" data-orig-size=\"1316,783\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"vegetation filed data with geopark agriculture map 3\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_3.webp?fit=1024%2C609&amp;ssl=1\" class=\"alignnone wp-image-1467\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_3.webp?resize=810%2C482&#038;ssl=1\" alt=\"WDRVI (indice de v\u00e9g\u00e9tation \u00e0 large gamme dynamique) et NDVI\" width=\"810\" height=\"482\" srcset=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_3.webp?resize=1024%2C609&amp;ssl=1 1024w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_3.webp?resize=300%2C178&amp;ssl=1 300w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_3.webp?resize=768%2C457&amp;ssl=1 768w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_3.webp?resize=1200%2C714&amp;ssl=1 1200w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_3.webp?w=1316&amp;ssl=1 1316w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><\/figure>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Les zones construites \u00e0 partir de l&#039;indice WDRVI sont meilleures que celles construites \u00e0 partir de l&#039;indice NDVI. N\u00e9anmoins, elles ne sont pas encore id\u00e9ales en raison d&#039;une biomasse trop importante.\u00a0<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\"><strong>GCI (Indice de chlorophylle verte)\u00a0<\/strong>Cette m\u00e9thode permet d&#039;estimer la teneur en chlorophylle des feuilles de plantes \u00e0 partir des bandes spectrales du proche infrarouge et du vert. En g\u00e9n\u00e9ral, la valeur de la chlorophylle refl\u00e8te directement l&#039;\u00e9tat de la v\u00e9g\u00e9tation.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">La formule GCI ressemble \u00e0 ceci : GCI = NIR \/ Vert \u2013 1.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" decoding=\"async\" data-attachment-id=\"1469\" data-permalink=\"https:\/\/geopard.tech\/fr\/blog\/use-of-ndvi-normalized-difference-vegetation-index-in-precision-agriculture\/vegation_4\/\" data-orig-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_4.webp?fit=1314%2C788&amp;ssl=1\" data-orig-size=\"1314,788\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"vegetation filed data with geopark agriculture map 4\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_4.webp?fit=1024%2C614&amp;ssl=1\" class=\"alignnone wp-image-1469\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_4.webp?resize=810%2C486&#038;ssl=1\" alt=\"GCI (Indice de chlorophylle verte)\u00a0\" width=\"810\" height=\"486\" srcset=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_4.webp?resize=1024%2C614&amp;ssl=1 1024w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_4.webp?resize=300%2C180&amp;ssl=1 300w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_4.webp?resize=768%2C461&amp;ssl=1 768w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_4.webp?resize=1200%2C720&amp;ssl=1 1200w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_4.webp?w=1314&amp;ssl=1 1314w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><\/figure>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Les zones d\u00e9finies \u00e0 partir de l&#039;indice GCI permettent de mieux distinguer les zones \u00e0 forte biomasse que les indices NDVI et WDRVI. Ces pr\u00e9cisions contribuent \u00e0 une gestion plus fine et plus efficace des parcelles.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\"><strong>RCI (Indice de chlorophylle rouge)<\/strong>\u00a0int\u00e8gre la m\u00eame base de connaissances sur la teneur en chlorophylle que GCI et la refl\u00e8te via la bande multispectrale rouge.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">La formule RCI ressemble \u00e0 ceci : RCI = NIR \/ Rouge \u2013 1.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"1470\" data-permalink=\"https:\/\/geopard.tech\/fr\/blog\/use-of-ndvi-normalized-difference-vegetation-index-in-precision-agriculture\/vegation_5\/\" data-orig-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_5.webp?fit=1313%2C785&amp;ssl=1\" data-orig-size=\"1313,785\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"vegetation filed data with geopark agriculture\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_5.webp?fit=1024%2C612&amp;ssl=1\" class=\"alignnone wp-image-1470\" src=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_5.webp?resize=810%2C484&#038;ssl=1\" alt=\"RCI (Indice de chlorophylle rouge)\u00a0\" width=\"810\" height=\"484\" srcset=\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_5.webp?resize=1024%2C612&amp;ssl=1 1024w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_5.webp?resize=300%2C179&amp;ssl=1 300w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_5.webp?resize=768%2C459&amp;ssl=1 768w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_5.webp?resize=1200%2C717&amp;ssl=1 1200w, https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2021\/11\/vegation_5.webp?w=1313&amp;ssl=1 1313w\" sizes=\"(max-width: 810px) 100vw, 810px\" \/><\/figure>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Les zones bas\u00e9es sur l&#039;indice RCI sont aussi pr\u00e9cises que les zones GCI.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Continuez \u00e0 suivre l&#039;\u00e9volution de vos parcelles et utilisez l&#039;indice de v\u00e9g\u00e9tation appropri\u00e9 au bon moment de la saison. Une large gamme d&#039;indices de v\u00e9g\u00e9tation est disponible d\u00e8s maintenant dans GeoPard.<\/p>","protected":false},"excerpt":{"rendered":"<p>Il existe plusieurs indices de v\u00e9g\u00e9tation couramment utilis\u00e9s, notamment l&#039;indice de v\u00e9g\u00e9tation par diff\u00e9rence normalis\u00e9e (NDVI), l&#039;indice de v\u00e9g\u00e9tation \u00e0 large gamme dynamique (WDRVI) et la chlorophylle verte\u2026<\/p>","protected":false},"author":210157960,"featured_media":1356,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_eb_attr":"","content-type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[1657,1662,1377],"tags":[1598],"class_list":["post-257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-precision-farming","category-ndvi","category-crop-monitoring","tag-precision-agriculture"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Use of NDVI (normalized difference vegetation index) in Precision Agriculture<\/title>\n<meta name=\"description\" content=\"NDVI (Normalized Difference Vegetation Index)\u00a0is the most famous and widely used in industries related to biomass and remote sensing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/geopard.tech\/fr\/blog\/utilisation-de-lindice-de-vegetation-par-difference-normalisee-ndvi-en-agriculture-de-precision\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Use of NDVI (normalized difference vegetation index) in Precision Agriculture\" \/>\n<meta property=\"og:description\" content=\"NDVI (Normalized Difference Vegetation Index)\u00a0is the most famous and widely used in industries related to biomass and remote sensing.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/geopard.tech\/fr\/blog\/utilisation-de-lindice-de-vegetation-par-difference-normalisee-ndvi-en-agriculture-de-precision\/\" \/>\n<meta property=\"og:site_name\" content=\"GeoPard - Precision agriculture Mapping software\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/geopardAgriculture\/\" \/>\n<meta property=\"article:published_time\" content=\"2020-09-15T15:39:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-12-01T20:59:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/geopard.tech\/wp-content\/uploads\/2021\/11\/AnyConv.com__Which-vegetation-index-is-better-to-use-in-Precision-Agriculture_.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" 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