Relação Espacial do Carbono da Vegetação e Matéria Orgânica do Solo na Serra da Mantiqueira

Terra, Marcela de Castro Nunes Santos; Mello, José Márcio de; Mello, Carlos Rogério de

doi:10.1590/2179-8087.059713

Cited by 4 publications

(5 citation statements)

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“…The tree carbon stock exhibits moderate spatial dependence, with a range of 142.13 m. Spatial dependence of the tree carbon stock was also observed by other authors (Amaral, Ferreira, Watzlawick, & Genú, 2010;Terra et al, 2015).…”

Section: Spatial Analysissupporting

confidence: 79%

“…Overall, spatial dependence has increased at deeper soil layers. In the deeper soil layers, the soil texture is highly heterogeneous, and the soil is younger and have less carbon (Terra et al, 2015). Therefore, there is a tendency for a more aggregate carbon distribution, increasing the spatial dependence of the process.…”

Section: Spatial Analysismentioning

confidence: 99%

“…This finding may be associated with the horizontal and vertical variation of the soil texture. In superficial, layers there is a greater porosity (Baker et al, 2001) and homogeneity soil texture, whereas in deeper layers, there is a greater soil texture heterogeneity (Terra et al, 2015), resulting in a more aggregate distribution of roots.…”

Section: Spatial Analysismentioning

confidence: 99%

“…The horizontal distribution of soil organic carbon and its relationship with climate and vegetation have been extensively studied (Jobbágy & Jackson, 2000;Terra, Mello, & Mello, 2015). Despite many studies on the geostatistical procedures applied to mapping soil attributes, little spatial information is available on the vertical distribution of soil carbon under forests, especially forests with a notable predominance of one tree genus/species.…”

Section: Introductionmentioning

confidence: 99%

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Above and belowground carbon stock in a tropical forest in Brazil

et al. 2020

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An increase in atmospheric CO2 levels and global climate changes have led to an increased focus on CO2 capture mechanisms. The in situ quantification and spatial patterns of forest carbon stocks can provide a better picture of the carbon cycle and a deeper understanding of the functions and services of forest ecosystems. This study aimed to determine the aboveground (tree trunks) and belowground (soil and fine roots, at four depths) carbon stocks in a tropical forest in Brazil and to evaluate the spatial patterns of carbon in the three different compartments and in the total stock. Census data from a semideciduous seasonal forest were used to estimate the aboveground carbon stock. The carbon stocks of soil and fine roots were sampled in 52 plots at depths of 0-20, 20-40, 40-60, and 60-80 cm, combined with the measured bulk density. The total estimated carbon stock was 267.52 Mg ha-1, of which 35.23% was in aboveground biomass, 63.22% in soil, and 1.54% in roots. In the soil, a spatial pattern of the carbon stock was repeated at all depths analyzed, with a reduction in the amount of carbon as the depth increased. The carbon stock of the trees followed the same spatial pattern as the soil, indicating a relationship between these variables. In the fine roots, the carbon stock decreased with increasing depth, but the spatial gradient did not follow the same pattern as the soil and trees, which indicated that the root carbon stock was most likely influenced by other factors.

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Section: Spatial Analysissupporting

confidence: 79%

Section: Spatial Analysismentioning

confidence: 99%

Section: Spatial Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Above and belowground carbon stock in a tropical forest in Brazil

et al. 2020

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“…A relação entre a distribuição de espécies e a matéria orgânica no solo tem sido observada em outras florestas (Marcon et al 2014, Oliveira et al 2015. O acúmulo de matéria orgânica no solo até níveis capazes de sustentar um fornecimento confiável de nutrientes e água para a biota é fundamental no desenvolvimento dos ecossistemas (Bechtold & Naiman 2009, Terra et al 2015, indicando que as espécies mencionadas acima são mais exigentes em termos de fertilidade do solo.…”

Section: Resultsunclassified

Fitossociologia e fatores ecológicos condicionantes da vegetação em uma floresta estacional na região central do Rio Grande do Sul, Brasil

Callegaro¹,

Araújo²,

Longhi³

et al. 2017

Iheringia Ser Bot

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RESUMO -Compreender a fi tossociologia e fatores ecológicos condicionantes pode subsidiar intervenções em fl orestas. Nesse contexto, objetivouse analisar os componentes arbóreo e regenerante e a infl uência das variáveis ambientais na distribuição de espécies, em uma Floresta Estacional na região central do Rio Grande do Sul. O estrato arbóreo foi amostrado em 33 parcelas instaladas sistematicamente, sendo em cada parcela instaladas subunidades para amostrar a regeneração natural. As principais espécies no componente arbóreo foram Trichilia clausseni C.DC. e Nectandra megapotamica (Spreng.) Mez e na regeneração natural foram Trichilia elegans A. Juss. e Cupania vernalis Cambess. Relevo, solo e dossel condicionaram espécies do estrato arbóreo e regeneração natural. O estádio regenerante das espécies foi condicionado por variáveis distintas das relacionadas ao estádio adulto. Contudo, ocorreram casos em que apenas uma variável, por exemplo, a relação entre o teor de matéria orgânica no solo e Trichilia elegans, infl uenciou tanto o estádio adulto quanto o regenerante. Palavras-chave: conservação fl orestal, ecologia, relação ambiente-vegetação ABSTRACT -Phytosociology and ecological factors on vegetation in a seasonal forest in the central area of Rio Grande do Sul, Brazil.Understanding the phytosociology and conditioning ecological factors of the vegetation can subsidize interventions in forests.. We analyzed the arboreal stratum and natural regeneration, as well as the infl uence of environmental variables on species distribution in a seasonal forest in central Rio Grande do Sul, Brazil. Thirty-three plots were systematically installed for the arboreal stratum sampling. In each plot, the natural regeneration Class I and Class II were measured. The main species were Trichilia elegans and Cupania vernalis in natural regeneration and Trichilia clausseni and Nectandra megapotamica in arboreal stratum. Relief, soil, and canopy infl uenced the arboreal stratum and natural regeneration of species. In general, the regenerating stage of the species was conditioned by distinct variables from those related to the adult stage. However, there were cases where only one variable infl uenced both the adult and the regenerating stages, such as the relationship between soil organic matter content and Trichilia elegans.

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