Journal Article Research Support, Non-U.S. Gov't phosphorus (P) 142M471B3J 27YLU75U4W Amazon forest AmazonFACE (Free-Air CO2 Enrichment experiment in the Amazon forest) Bioma Caatinga Carbon Dioxide Comment Pantanal Phosphorus Research Support, U.S. Gov't, Non-P.H.S. Soil biodiversity biodiversity conservation biomass loss biome climate climate change conservación de la biodiversidad drought effects elevated CO2 field experimental data forest free-air CO2 enrichment (FACE) indigenous land model-data synthesis nitrogen (N)