Floresta e Ambiente
URI permanente para esta coleçãohttps://thoth.dti.ufv.br/handle/123456789/13310
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Resultados da Pesquisa
Item Mitigation of climate change of coffee production systems in Cundinamarca, Colombia(Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro, 2019) Andrade, Hernán J.; Zapata, Piedad C.Production systems with woody perennial plants, ideally timber trees, are technologies accepted in carbon (C) projects to mitigate climate change. This research had as purpose the estimation of C storage and fixation in coffee production systems in Cundinamarca, Colombia. Carbon in biomass, necromass and soil were estimated in coffee plantations with three different shade levels (low, medium and high) in three municipalities using IPCC’s recommendations. Soil stored 75% of the total C (93.9 to 137.7 Mg C ha–1 in the upper 30 cm), followed by trees (19%). Carbon increases with a rise in shade (55.8 vs 42.0 vs 23.0 Mg C ha–1 for high, medium and low shade, respectively). These coffee plantations fixed a mean of 2.3 Mg C ha–1 year–1, with a maximum value of ~7.1 Mg CO2 ha–1 year–1 under a shade of 30% to 40%. Coffee plantations, especially with high shade, have a high potential of C fixation and mitigate climate change.Item Adaptation to climate change in coffee production systems in Tolima(Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro, 2019) Canal-Daza, Diana; Andrade-Castañeda, HernánIt was estimated the climate change adaptation of the main coffee production systems in Líbano, Tolima, Colombia, using diversity indicators. Three production systems were selected: agroforestry systems (AFS) with Cordia alliodora, AFS with plantain and in monoculture, with four replications, locating five sampling units to collect and identify the ant genera as diversity and adaptation indicators. The richness index of Margalef detected between systems (1.3 vs 0.6 vs 0.6 for AFS with C. alliodora, monoculure and AFS with plantain, respectively). The genera Cephalotes, Dorymyrmex, Hypoponera, Pachycondyla, Octostruma and Proceratium, which require abundant biomass and litter, were registered just in AFS with C. alliodora, coinciding with the depth of this layer. The AFS with C. alliodora present advantages due they improve conditions for the conservation of several groups of ants, which are indicators of diversity and climate change adaptation.