Nitrogen and phosphorus pools and fluxes in upland and seasonally flooded forests and woodlands of the Cerrado-Pantanal transition of Brazil

• DOI: 10.1016/j.tfp.2023.100383
• Publication Date: 2023-03-05T07:52:23Z
• Authors: George L Vourlitis; Osvaldo Borges Pinto; Higo J. Dalmagro; Paulo Enrique Zan...; Francisco de Alme...
• Keywords: Litter; Gallery forest

Brazilian tropical savanna (referred to as Cerrado) has enormous structural variability ranging from tree- and shrub-free grasslands tall, dense forests that are found in both well-drained upland seasonally flooded (hyperseasonal) landforms. These hydrological variations cause aboveground carbon (C) storage, presumably nitrogen (N) phosphorus (P) storage fluxes; however, the effects of these on ecosystem N P pools fluxes less well-known. Thus, our objective was analyze for a spectrum Cerrado physiognomies hyperseasonal were compiled over an 8-10 year period structurally different forms Cerrado, including grass dominated (campo sujo), typical wooded (sensu stricto) cerrado, forested stands located Cuiaba Basin Northern Pantanal southern Mato Grosso, Brazil. We generally higher than non-forest landcover types, regardless hydrology; patterns not consistent wood just high typical- dense-wooded savannas. Wood typically made up largest vegetation reservoir, even woody-grass sujo) which had substantially lower tree density or savanna, followed by litter roots, then foliage. However, vast majority upper 50 cm soil layer, accounting 82-98% 72-98% total P, respectively, if only 0-10 layer is considered, more half soil. Nutrient return via production flux mineralization root uptake, nutrient cycling tended be Savanna woodlands comparable Basin, because shallower stonier soils Basin. while types studied here large differences structure (vegetation height, leaf area index, density), savannas belowground pools.