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Floresta e Ambiente

Print version ISSN 1415-0980On-line version ISSN 2179-8087

Abstract

GOMES JUNIOR, Diêgo et al. Decomposition of Leaf Litter in Semideciduous Submontane Forest, in The Southern State of Espírito Santo. Floresta Ambient. [online]. 2019, vol.26, n.spe1, e20180400.  Epub Aug 29, 2019. ISSN 1415-0980.  https://doi.org/10.1590/2179-8087.040018.

The objective of this work was to understand the relationship between decomposition of leaf litter and climatic elements and determine the mineralization of nutrients in the decomposition process in a fragment of Semideciduous Submontane Forest, located in southern state of of Espírito Santo. Overall, 84 litterbags were deposited in 12 permanent plots, collecting one litterbag per plot for 30, 60, 90, 150, 210, 270 and 360 days after the beginning of the experiment. The leaf material remaining in the litterbag was oven-dried and weighed, with later analysis of nutritional compounds. The leaf litter decomposition rate was 1.42, 75.95% of decomposing litter at the end of the evaluation period. Mineralization occurred in the following order: K, Corg., Mg, S, P, N and Ca. There was a positive correlation of average and minimum air temperature, as well as accumulated precipitation and leaf litter decomposition .

Keywords : nutrient cycling; tropical forests; macronutrients; lignocellulosic compounds.

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