The effects of chamber pressurization on soil-surface CO2 flux and the implications for NEE measurements under elevated CO2

carbon dioxide contenido de agua en el suelo dioxyde de carbone gas exchange gases gaz grassland soils grasslands herbage intercambio de gases modele modelos models praderas pression pressure sistema poroso del suelo soil pore system soil texture soil types soil water content sol d'herbages sorption suelo de praderas teneur en eau du sol textura del suelo texture du sol tipos de suelos transport transporte type de sol