A Review of Above Ground Necromass in Tropical Forests

Palace, M. W.; Keller, Michael; Hurtt, George C.; Frolking, Steve

doi:10.5772/33085

Cited by 48 publications

(86 citation statements)

References 114 publications

(177 reference statements)

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“…Of the different stocks, above-ground biomass is most often assessed in tropical forests, however coarse woody debris (CWD) is also an essential component because of its role in biogeochemical cycles (Chambers et al 2000;Clark et al 2002;Wilcke et al 2005;Palace et al 2008). Within tropical forests, CWD accounts for 6 to 25% of total above-ground carbon stocks (Nascimento and Laurance 2002; Rice et al 2004;Baker et al 2007; Palace et al 2012), implying a total pan-Amazon CWD carbon stock of ca. 10 Pg (Chao et al 2009a).…”

Section: Introductionmentioning

confidence: 99%

Soil-induced impacts on forest structure drive coarse woody debris stocks across central Amazonia

Martins

Schietti

Feldpausch

et al. 2014

Plant Ecology & Diversity

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Section: Introductionmentioning

confidence: 99%

Soil-induced impacts on forest structure drive coarse woody debris stocks across central Amazonia

Martins

Schietti

Feldpausch

et al. 2014

Plant Ecology & Diversity

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“…A deposição da necromassa é indicadora de produtividade primária e pode ser influenciada por diversos fatores, tais como: temperatura, umidade, relevo, tipo de vegetação, precipitação, deciduidade, estádio sucessional, disponibilidade hídrica, características do solo e regimes de luminosidade, dentre outros (Figueiredo Filho et al 2003, Palace et al 2012, Kuruppuarachchi & Seneviratne 2013, Lv et al 2013.…”

Section: Introductionunclassified

“…A necromassa proporciona uma fonte constante de matéria orgânica para a ciclagem de carbono e de nutrientes (Palace et al 2012, Bellingham et al 2013. Sua camada depende, além da produção e deposição, da velocidade de decomposição da matéria orgânica, que varia conforme a composição do substrato, atividade dos decompositores e das condições ambientais, particularmente temperatura e umidade (Mielniczuk et al 2003, Bellingham et al 2013.…”

Section: Introductionunclassified

“…O conhecimento dos processos de produção, deposição e acúmulo de necromassa é importante para compreender a dinâmica do carbono em florestas tropicais, uma vez que o vegetal ao morrer deixa de acumular carbono e passa a liberá-lo para o solo e para a atmosfera (Palace et al 2008, Palace et al 2012. Embora contribua com uma porção considerável da biomassa total acima do solo (Palace et al 2007, Kuruppuarachchi & Seneviratne 2013, a necromassa ainda é pouco estudada em florestas tropicais e, em menor frequência, em ecossistemas florestais em restauração.…”

Section: Introductionunclassified

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Necromassa em reflorestamentos com espécies nativas da Mata Atlântica com 4, 6 e 8 anos de implantação

Mota

Torezan

2013

Hoehnea

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-(Necromass in 4, 6 and 8-year old Atlantic Forest restoration sites). In addition to the recognized contribution of ecological restoration to ecosystem services, the fixation of atmospheric carbon has gained attention, as a result of the carbon uptake by growing trees, which can accumulate in different compartments, including the necromass. The goal of this study was to identify factors that explain the variability in necromass amount in reforestations with native species after a period of 4, 6, and 8 years of implantation. Necromass amounts were higher with higher age of implantation, canopy cover, and abundance of woody species, being the medium and large branches the components most influenced by the factors analyzed. Necromass was also associated with increase in concentration of organic carbon in the soil, suggesting that, in older reforestations, with denser canopies, microclimatic conditions can favor not only the deposition but also decomposition of necromass. Key words: dead plant biomass, forest restoration, litter, soil organic carbon RESUMO -(Necromassa em reflorestamentos com espécies nativas da Mata Atlântica com 4, 6 e 8 anos de implantação). Além dos serviços ambientais reconhecidos da restauração ecológica, tem sido ressaltada a função de fixação de carbono atmosférico, que pode se acumular em diferentes compartimentos, inclusive na necromassa. Este estudo objetivou identificar fatores que expliquem a variação da necromassa em reflorestamentos com espécies nativas com diferentes idades de implantação (4, 6 e 8 anos). Os resultados indicam que a necromassa aumentou com a idade, a cobertura do dossel e a abundância de espécies lenhosas, sendo os galhos médios e grandes os componentes mais influenciados pelos fatores analisados. Quanto maior a deposição de necromassa maior a concentração de carbono orgânico no solo, o que sugere que reflorestamentos mais antigos e, consequentemente, com dossel mais denso, possibilitam condições microclimáticas mais favoráveis tanto para o processo de deposição quanto para o de decomposição da necromassa. Palavras-chave: biomassa vegetal morta, carbono orgânico do solo, restauração ecológica, serapilheira

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“…However, an extensive survey of necromass on a northsouth transect from the Manaus area to Humaitá found no relation to aboveground live biomass, differences in necromass stocks being explained instead by soil quality and other limitations on site quality for tree growth (Martins et al 2014). In a pantropical review, Palace et al (2012) found that undisturbed forests had a peak of b Fig. 3 Distribution of ''distinct locations'' of plots used in different biomass studies (see Table 1 Nogueira et al (2008a) necromass in the middle range of aboveground live biomass values, with less necromass in both high-and lowbiomass forests.…”

Section: Necromass (Dead Biomass)mentioning

confidence: 99%

Brazil’s Amazonian forest carbon: the key to Southern Amazonia’s significance for global climate

Fearnside

2016

Reg Environ Change

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Southern Amazonia is the first region of Brazil's Amazon area to be exposed to intensive conversion to agriculture and ranching. This conversion emits greenhouse gases from the carbon stock in the biomass and soils of the previous vegetation. Quantifying these carbon stocks is the first step in quantifying the impact on global warming from this conversion. This review is limited to information on Brazilian Amazonia's carbon stocks. It indicates large amounts of carbon at risk of emission in both biomass and soils, as well as considerable uncertainty in estimates. Reducing uncertainty is a priority for research but the existence of uncertainty must not be used as an excuse for delaying measures to contain deforestation. The magnitude of carbon stocks is proportional to greenhouse gas emissions per hectare of deforestation and consequently to impact on global climate.

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A Review of Above Ground Necromass in Tropical Forests

Cited by 48 publications

References 114 publications

Soil-induced impacts on forest structure drive coarse woody debris stocks across central Amazonia

Soil-induced impacts on forest structure drive coarse woody debris stocks across central Amazonia

Necromassa em reflorestamentos com espécies nativas da Mata Atlântica com 4, 6 e 8 anos de implantação

Brazil’s Amazonian forest carbon: the key to Southern Amazonia’s significance for global climate

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