Seasonal and interannual litter dynamics of a tropical semideciduous forest of the southern Amazon Basin, Brazil

Sanches, Luciana; Valentini, Carla Maria Abido; Júnior, Osvaldo Borges Pinto; Nogueira, José de Souza; Vourlitis, George L.; Biudes, Marcelo Sacardi; Silva, Carlos José da; Bambi, Paulino; Lobo, Francisco de Almeida

doi:10.1029/2007jg000593

Cited by 62 publications

(51 citation statements)

References 44 publications

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“…It is also known that litter production follows a seasonal pattern with lowest values during wet seasons and highest values in dry seasons in tropical forest ecosystem (Sanches et al, 2008;Zhang et al, 2014;Scheer et al, 2009). The results are in agreement with this seasonal prediction, because litterfall production across all levels of disturbance was higher in the dry compared with the wet season.…”

Section: Seasonal Patterns Of Litterfall Productionsupporting

confidence: 81%

Litterfall dynamics in Boter-Becho Forest: Moist evergreen montane forest of Southwestern Ethiopia

Seta¹,

Demissew²,

Woldu³

2018

J. Ecol. Nat. Environ.

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Litterfall in the forest is essential for balanced ecosystem processes. The present study determined seasonal variations of litterfall in the Boter-Becho forest, Southwestern Ethiopia. Based on forest disturbance level, two sites were selected: Low and high. Litterfall production in the high and low disturbed forest sites averaged 6.6 and 10.8 t ha -1 year -1 , respectively. Significant differences (P<0.001) in litterfall were manifested between wet (0.6 ton ha -1 month -1 ) and dry (0.8 tons ha -1 month -1 ) seasons. Higher litterfall was associated with the dry compared with the wet season. Both litterfall and its fractions including leaf litter, reproductive parts and twigs followed a multimodal distribution pattern. Litterfall peaked during March, April, December, January and February with maximum peaks during March and December respectively. Monthly rainfall and temperature directly influenced litterfall production. Litterfall was strongly but negatively correlated with rainfall compared to ambient temperature. Although the present study provided useful information on the effects of low and high disturbance on litterfall production of the Boter Becho forest, further studies are required to quantify and understand the impact of disturbance on nutrient cycling specific to this forest.

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Section: Seasonal Patterns Of Litterfall Productionsupporting

confidence: 81%

Litterfall dynamics in Boter-Becho Forest: Moist evergreen montane forest of Southwestern Ethiopia

Seta¹,

Demissew²,

Woldu³

2018

J. Ecol. Nat. Environ.

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“…The seasonality in biomass deposition by trees was similar to that found by Silva et al (2007), Sanches et al (2008, 2009 in a forest of the Amazon-Cerrado transition on orthic Quartzarenic Neosol. The mean plant litter production was 25.33, 28.00, 38.73, and 46.16 g m -2 month -1 among the FPI-I, FPI-II, NF-I, and NF-II sites, respectively.…”

Section: Resultssupporting

confidence: 60%

Integrating forest-pasture: Spatial analysis and delineation of zones of litter production and nutrient return

Neto

Santos

Leite

et al. 2015

SCA

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This study aimed to quantify, describe, and identify plant litter production and nutrient accumulation zones in different forest-pasture integration (FPI) systems and forest strata of the Cerrado-Amazon transition on typical orthic Quartzarenic Neosol using spatial analysis, principal component analysis, and non-hierarchical fuzzy k-mean clustering logic techniques. The evaluations were performed at two FPI systems comprising a combination of Brachiaria brizantha cv. Marandu and thinned native vegetation with 50 and 75% (FPI-I and FPI-II, respectively) shade in an original thinned forest (NF-I) and in an original intact forest (NF-II) with 80 and 95% shade, respectively. An area of 4,000 m² (40 x 100 m) that contained 32 sampling points arranged in a 4 x 25 m grid was demarcated for each treatment. Plant litter was collected using 32 collectors installed at equidistant points. Twelve nylon bags were placed on the soil surface at each point to evaluate the plant litter decomposition, totaling 384 bags per treatment. It was possible to quantify, describe, and define plant litter production and nutrient accumulation zones in different FPI systems and forest strata of the Cerrado-Amazon transition on orthic Quartzarenic Neosol using geostatistical analysis, principal components, and non-hierarchical fuzzy k-mean clustering logic procedures. Key words: Precision agriculture, principal component analysis, geostatistics, ordinary kriging, fuzzy k-mean logic, soil management, special variability ResumoO objetivo foi quantificar, descrever e identificar zonas de produção de serapilheira e acúmulo de nutrientes em diferentes sistemas de integração floresta-pasto e estratos de floresta de transição CerradoAmazônia sobre Neossolo Quartzarênico Órtico típico, utilizando técnicas de análise espacial, de análise de componentes principais e da lógica de agrupamento não hierárquica de fuzzy k-médias. As avaliações foram realizadas em dois sistemas de integração floresta-pasto originários da associação de Brachiaria brizantha cv. Marandu e vegetação nativa raleada com 50% e 75% (IFP-I e IFP-II, respectivamente) de sombreamento numa floresta original raleado (FN-I) e em floresta original intacta (FN-II) com 80%

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“…Existem aproximadamente 94 espécies e 35 famílias de árvores com um diâmetro ≥ 10 cm, no entanto, quase 50% de todos os indivíduos são das famílias Burseraceae (P. sagotianum), Clusiaceae (T. schomburgkii) e Moraceae (B. lactescens). A altura máxima das copas está entre 25-28 m, a densidade é de 483 ha -1 e área basal das árvores é Contribuição de folhas na formação da serrapilheira e no retorno de nutrientes em floresta de transição no norte de Mato Grosso de 22,5 m 2 ha -1 (Sanches et al, 2008). O índice de área foliar varia entre 4-5 m 2 m -2 na estação chuvosa e 2-3 m 2 m -2 na época da seca refletindo a natureza semidecídua da floresta (Sanches et al, 2005).…”

Section: áRea De Estudounclassified

Contribuição de folhas na formação da serrapilheira e no retorno de nutrientes em floresta de transição no norte de Mato Grosso

et al. 2009

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RESUMOEste estudo foi desenvolvido numa área de floresta de transição Amazônia-Cerrado no norte de Mato Grosso. Teve como objetivo quantificar a dinâmica da produção e acúmulo e as partes constituintes da serrapilheira, bem como a participação das folhas no retorno do nitrogênio, fósforo e carbono ao solo por meio da decomposição. Foram coletados mensalmente durante um ano dados de serrapilheira total produzida, serrapilheira total acumulada no solo e avaliada a decomposição de folhas no período de seca e de chuvas. A produção de serrapilheira apresentou variações sazonais com maiores valores no período seco e predomínio da fração foliar durante todo o ano. Por outro lado, a serrapilheira acumulada não apresentou diferenças significativas entre o período de seca e o chuvoso como também correlação significativa com a serrapilheira produzida. A decomposição da serrapilheira exclusiva de folhas foi mais intensa no período chuvoso e em ordem decrescente de espécies, em T. schomburgkii, Thyrsodium sp, B. lactescens e P. sagotianum. A espécie P. sagotianum tanto no período seco quanto no chuvoso apresentou maior resistência à decomposição. O potencial de retorno de nitrogênio ao solo foi da ordem de 70,3 kg.ha -1 .ano -1 , para o fósforo, de 76,1 kg.ha -1 .ano -1 e para o carbono, de 3,5 ton.ha -1 .ano -1 . Houve uma correlação entre a decomposição exclusiva de folhas e o retorno de nitrogênio e fósforo para todas as espécies estudadas no período de seca. No período chuvoso foi registrada correlação significativa somente para nitrogênio e o carbono para a espécie P. sagotianum.PALAVRAS-CHAVE: ciclagem de nutrientes, serrapilheira, floresta de transição. Leaf contribution to litterfall and litterpool and nutrients recycling in transition forest in Mato Grosso ABSTRACTThis study was conducted in an area of Amazonia-Cerado transition forest in the noirth of Mato Grosso state, Brazil. The main objectives of the study was to quantify the variability of litter fall and litter pool biomass (leaves, flowers, fruits, and wood), and the participation of the leaves in the return of nitrogen, phosphorus and carbon to the soil through decomposition. Litter was collected monthly during one year and leaves decomposition was analyzed during the dry and rainy seasons. Litter fall varied along the year with higher values in the dry season and predominance of the leaf fraction. Nevertheless, there was no significant difference between dry and rainy seasons for litter pool as well as significant correlation between litter pool and litter fall. Decomposition of leaves was more intense in the rainy season in order of decreasing species: T. schomburgkii, Thyrsodium sp, B. lactescens and P. sagotianum. The species P. sagotianum in both dry and rainy seasons showed most slowly decomposition. The potential return was 70.3 kg.ha -1 .year -1 for nitrogen, 76.1 kg.ha -1 .years -1 for phosphorus, 3.5 ton.ha -1 . years -1 for carbon. There was significant correlation between leave decomposition and nitrogen and phosphorus return for all species ana...

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Seasonal and interannual litter dynamics of a tropical semideciduous forest of the southern Amazon Basin, Brazil

Cited by 62 publications

References 44 publications

Litterfall dynamics in Boter-Becho Forest: Moist evergreen montane forest of Southwestern Ethiopia

Litterfall dynamics in Boter-Becho Forest: Moist evergreen montane forest of Southwestern Ethiopia

Integrating forest-pasture: Spatial analysis and delineation of zones of litter production and nutrient return

Contribuição de folhas na formação da serrapilheira e no retorno de nutrientes em floresta de transição no norte de Mato Grosso

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