The Braunschweig carbon project: atmospheric flux monitoring and free air carbon dioxide enrichment (FACE)

air aire atmosfera atmosphere beta vulgaris carbon dioxide centeno changement climatique climatic change cycling dioxyde de carbone ecosistema ecosystems experimentation hordeum vulgare modele modelos models plant soil relations relaciones planta suelo relation plante sol remolacha azucarera rye seigle sugar beet trigo triticum aestivum wheats