Biomass production and species composition change in a tallgrass prairie ecosystem after long-term exposure to elevated atmospheric CO2

agua del suelo atmosfera atmosphere biomasa biomass biomasse botanical composition carbon dioxide enrichment composition botanique corte crecimiento croissance cutting cyperaceae drought stress eau du sol ecosistema ecosystems enrichissement en gaz carbonique etapas de desarrollo de la planta gramineae grassland soils grasslands growth herbage monitoring natural grasslands plant developmental stages plant water relations poaceae praderas prairie prairies racine rebrote regrowth relaciones planta agua relation plante eau repousse roots soil water sol d'herbages suelo de praderas vigilancia water stress