03564naa a2200601 a 450000100080000000500110000800800410001902400560006010000220011624501210013826000090025952018770026865000110214565000190215665000180217565000130219365000200220665000150222665000130224165000170225465000240227165000220229565000240231765000090234165000170235065000160236765300250238365300230240865300280243165300150245970000170247470000170249170000320250870000200254070000210256070000220258170000220260370000220262570000190264770000250266670000190269170000210271070000200273170000270275170000150277870000160279370000200280970000240282970000220285370000200287570000270289577300400292221306712021-11-03 2021 bl uuuu u00u1 u #d7 ahttps://doi.org/10.1016/j.geoderma.2021.1149432DOI1 aMENEZES, R. S. C. aSoil and vegetation carbon stocks after land-use changes in a seasonally dry tropical forest.h[electronic resource] c2021 aThe lack of robust scientific data still hinders estimates of soil and plant carbon (C) losses due to land-use changes in most dry tropical ecosystems. The present study investigated the effects of land-use and cover changes on total ecosystem C stocks in NE Brazil, aiming to quantify C losses after the removal of the native forest, known as Caatinga. The sampling design included the four main land-use/cover types (Dense Caatinga, Open Caatinga, Pastures and Crop fields) and the seven main soil classes (Arenosols, Acrisols, Regosols, Ferrasols, Luvisols, Planosols, and Leptosols), a combination that represents over 90% of the region. This design resulted in 192 sampling points (48 in each land-use), distributed proportionally to the area of occurrence of each soil class. In each sampling point, we determined C stocks in soil organic matter (SOM) and roots (to a depth of 1 m or rock layer), aboveground vegetation biomass (trees and herbs, separately), deadwood, and surface litter. Areas covered by Dense Caatinga store, on average, nearly 125 Mg ha-1 of C. Most of this C is stored in the soil organic matter (72.1%), followed by aboveground biomass (15.9%), belowground biomass (7.3%), deadwood (2.9%), litter (1.3%), and herbaceous biomass (0.5%). The substitution of Dense Caatinga to plant pastures and crop fields caused losses of >50% of ecosystem C stocks, reaching almost 65 Mg ha-1 of C, with nearly equal losses from the SOM and vegetation biomass compartments. Open Caatinga store nearly 30% less C than Dense Caatinga. Contrary to what was expected, the overall differences in C stocks between soil classes were not significant, with a few exceptions. We expect that the findings of this study will contribute to a more robust inventory of GHG emissions/removals due to land-use changes in NE Brazil and other dry tropical regions of the globe. aCarbon aCarbon dioxide aDeforestation aLand use aLand use change aVegetation aCaatinga aDesmatamento aDióxido de Carbono aFloresta Tropical aMudança Climática aSolo aUso da Terra aVegetação aEcossistema Caatinga aEstoque do carbono aEstoques do ecossistema aSemiárido1 aSALES, A. T.1 aPRIMO, D. C.1 aALBUQUERQUE, E. R. G. M. de1 aJESUS, K. N. de1 aPAREYN, F. G. C.1 aSANTANA, M. da S.1 aSANTOS, U. J. dos1 aMARTINS, J. C. R.1 aALTHOFF, T. D.1 aNASCIMENTO, D. M. do1 aGOUVEIA, R. F.1 aFERNANDES, M. M.1 aLOUREIRO, D. C.1 aARAUJO FILHO, J. C. de1 aGIONGO, V.1 aDUDA, G. P.1 aALVES, B. J. R.1 aIVO, W. M. P. de M.1 aANDRADE, E. M. de1 aPINTO, A. de S.1 aSAMPAIO, E. V. de S. B tGeodermagv. 390, 114943, May 2021.