Litter deposition, decomposition and nutrient content in a crop-livestock-forest integration area, in the Cerrado Region

• Main Author: Ribeiro, Fabiana Piontekowski
• Publication Date: 2022
• Other Authors: Pulrolnik, Karina, Vilela, Lourival, Gatto, Alcides
• Format: Article
• Language: por
• Source: Pesquisa Florestal Brasileira (Online)
• Download full: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/2072
• topic: Sistemas agroflorestais; Macronutrientes; Liteira; Agroforestry systems; Macronutrients; Litter

This work aimed to analyze the decomposition and nutrient content of the litterfall in a crop-livestock-forestry integrated system (CLFI) located in Embrapa Cerrados, Planaltina, Distrito Federal, Brazil. Litter traps were distributed and litterbags were used to investigate the decomposition. The litter traps and litterbags were allocated between the tress and ranks. Each litterbag was filled with 20 g of eucalyptus litterfall. The samples of both collections were sent to a laboratory to determine the macronutrient content. The total litterfall was 9,394.2 kg ha-1 between the tress and 3,726.4 kg ha-1 between ranks. The precipitation showed a high influence on the litterfall decomposition. The decomposition rates were similar to both positions and the half-life time in the short and long period (recalcitrant) were respectively 10 and 1,386 days between tress and 10 and 1,155 between ranks. The litterfall nutrient content (N, P, K, S, Ca and Mg) was high between trees. Ca and N showed greater content during the deposition and decomposition process independent of the position in the CLFI.