Soil and vegetation carbon stocks after land-use changes in a seasonally dry tropical forest

Menezes, Rômulo Simões Cézar; Sales, Aldo Torres; Primo, Dário Costa; Albuquerque, Eliza Rosário Gomes Marinho de; Jesus, Kennedy Nascimento de; Pareyn, Frans Germain Corneel; Santana, M. da S.; Santos, Uemeson José dos; Martins, Júlio César Rodrigues; Althoff, Tiago Diniz; Nascimento, Diego Marcelino do; Gouveia, Rafael Feitosa; Fernandes, Mílton Marques; Loureiro, Diego Campana; Filho, José Coelho de Araújo; Giongo, V.; Duda, Gustavo Pereira; Alves, Bruno José Rodrigues; Ivo, W. M. P. de M.; Andrade, Eunice Maia de; Pinto, Alexandre de Siqueira; Sampaio, Everardo Valadares de Sá Barretto

doi:10.1016/j.geoderma.2021.114943

Cited by 42 publications

(30 citation statements)

References 33 publications

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“…Although the Caatinga vegetation in both areas acts as a carbon sink (Oliveira et al, 2021), our results indicate that only soils under CAD store carbon at levels reported for other areas of the Caatinga biome, even in amounts greater than found in Caatinga preserved under similar soils (Althoff et al, 2018). Thus, considering that Leptsols sequester an average of 65 Mg ha -1 of total carbon, which corresponds to between 70 and 80% of the total carbon stock of ecosystems with Caatinga vegetation (Menezes et al, 2021), our results prove that degradation compromises atmospheric carbon sequestration, with direct impacts on the carbon cycle and the provision of ecosystem services, notably those related to regional climate regulation.…”

Section: Degradation and Chemical Attributes Of Soilsmentioning

confidence: 48%

“…Numerous studies have also shown the eff ects of degradation on the soil attributes of the SAB. Most of these studies have assessed these changes in the fi rst soil layers (Mora and Lázaro, 2014;Araújo Filho et al, 2017;Althoff et al, 2018) and, to a lesser extent, in depths greater than 40 cm and/or in subsurface pedogenetic horizons (Neves et al, 2021;Silva et al, 2021;Menezes et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Degradation on Soil Attributes Under Caatinga in the Brazilian Semi-Arid

et al. 2023

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Anthropic activities in their various aspects have promoted soil degradation in the Brazilian semi-arid region (SAB). As a result, significant losses in productivity and in the ability of soils to fulfill their ecological functions have been reported. The present study investigated the effects of degradation on soil attributes and properties under dense (CAD) and sparse (CAE) shrubby Caatinga in Campina Grande, PB, Brazil. Samples from the 0-20 cm layer of soil were investigated via physical (particle size distribution and soil density), chemical (acidity, electrical conductivity, macronutrients, soil organic matter) and microbiological attributes (microbial biomass carbon (C-BMS), basal respiration of the soil (RBS) and metabolic quotient (qCO2) Data were submitted to the Mann-Whitney Test and Principal Component Analysis (PCA). Anthropic actions on the CAE promoted the exposure of the saprolitic layer on the surface. This layer has imperfect drainage, low levels of nutrients and organic matter and high sodicity, which contributes to the slow regeneration of vegetation. Carbon stock and microbial activity are significantly lower in CAE compared to CAD. Degradation resulted in losses of supporting ecosystem services (nutrient cycling and primary production) and regulation (erosion control and climate regulation). The results can be used to understand the dynamics of landscapes of low complexity (high degradation) in the SAB and serve as a framework to find strategies to restore the productive capacity of extensive degraded and/or desertified areas in the SAB.

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Section: Degradation and Chemical Attributes Of Soilsmentioning

confidence: 48%

Section: Introductionmentioning

confidence: 99%

Effects of Degradation on Soil Attributes Under Caatinga in the Brazilian Semi-Arid

et al. 2023

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“…Forests in many regions over the world are exposed to numerous destructive factors of anthropic origin (Heydari et al, 2012;Chaturvedi et al, 2017a;Menezes et al, 2021), putting at risk their biomass production (Chaturvedi et al, 2012;Milkias and Toru, 2018) and their main ecosystem functions Bochet et al, 2021;Chaturvedi et al, 2021). Since 2000, a dangerous phenomenon, called oak (Q. brantii) decline (Kamata et al, 2002;Lloret et al, 2004;Morillas et al, 2012;Attarod et al, 2017;Sánchez-Salguero et al, 2020) has occurred in many oak forests around the world (Mc Dowell et al, 2008), and especially in the Mediterranean region.…”

Section: Introductionmentioning

confidence: 99%

Dieback intensity but not functional and taxonomic diversity indices predict forest productivity in different management conditions: Evidence from a semi-arid oak forest ecosystem

et al. 2022

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The relationships between different aspects of diversity (taxonomic, structural and functional) and the aboveground biomass (AGB) as a major component of global carbon balance have been studied extensively but rarely under the simultaneous influence of forest dieback and management. In this study, we investigate the relationships between taxonomic, functional and structural diversity of woody species (trees and shrubs) and AGB along a gradient of dieback intensity (low, moderate, high and no dieback as control) under two contrasted management conditions (protection by central government vs. traditional management by natives) in a semi-arid oak (Quercus brantii Lindl.) forest ecosystem. AGB was estimated and taxonomic diversity, community weighted average (CWM) and functional divergence indices were produced. We found that the aerial biomass was significantly higher in the intensively used area (14.57 (±1.60) t/hm 2 ) than in the protected area (8.70 (±1.05) t/hm 2 ) due to persistence of some large trees but with decreasing values along the dieback intensity gradient in both areas. CWM of height (H), leaf nitrogen content (LNC) and leaf dry matter content (LDMC) were also higher in the traditional managed area than in the protected area. In contrast, in the protected area, the woody species diversity was higher and the inter-specific competition was more intense, explaining a reduced H, biomass and LDMC. Contrary to the results of CWM, none of the functional diversity traits (FDvar) was affected by dieback intensity and only FDvar values of LNC, leaf phosphorus content (LPC) and LDMC were influenced by management. We also found significantly positive linear relationships of AGB with CWM and FDvar indices in the protected area, and with taxonomic and structural diversity indices in the traditional managed area. These results emphasize that along a dieback intensity gradient, the leaf functional traits are efficient predictors in estimating the AGB in protected forests, while taxonomic and structural indices provide better results in forests under a high human pressure. Finally, species identity of the dominant species (i.e., Brant's oak) proves to be the main driver of AGB, supporting the selection effect hypothesis.

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“…The nitrogen decrease in CS when compared to FPS and PS in layer 0 -10 being 49% and 58.3% or 1.06 g Kg -1 and 1.26 g Kg -1 , respectively. Menezes et al (2021) studying the stocks of carbon and nitrogen in different types of land use, in the Sertão of the state of Paraiba, also found significant differences between the values of TNStock, with native vegetation and sparse vegetation being the areas with the highest averages, with the lowest rates for pasture system, annual crops and permanent cultivation areas. Along the depth its values also decreased, an expected situation due to the greater entry of plant residues on the soil surface, allowing a slow and gradual decomposition of the organic matter in the soil.…”

Section: Carbon and Nitrogen Stocksmentioning

confidence: 92%

Carbon and Nitrogen Stocks and Microbiological Activity Under Forest-Pasture System and Traditional Pasture in Pernambuco

et al. 2022

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Soil and vegetation carbon stocks after land-use changes in a seasonally dry tropical forest

Cited by 42 publications

References 33 publications

Effects of Degradation on Soil Attributes Under Caatinga in the Brazilian Semi-Arid

Effects of Degradation on Soil Attributes Under Caatinga in the Brazilian Semi-Arid

Dieback intensity but not functional and taxonomic diversity indices predict forest productivity in different management conditions: Evidence from a semi-arid oak forest ecosystem

Carbon and Nitrogen Stocks and Microbiological Activity Under Forest-Pasture System and Traditional Pasture in Pernambuco

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