Protective shade, tree diversity and soil properties in coffee agroforestry systems in the Atlantic Rainforest biome

Souza, Helton Nonato de; Goede, R.G.M. de; Brussaard, L.; Cardoso, Irene Maria; Duarte, Edivânia Maria Gourete; Fernandes, Raphael Bragança Alves; Gomes, Lucas Carvalho; Pulleman, Mirjam

doi:10.1016/j.agee.2011.11.007

Cited by 166 publications

(119 citation statements)

References 45 publications

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“…De acordo com Lemenih et al (2004), quanto maior o percentual de fechamento do dossel e o índice de área foliar, menor a temperatura do ar. Souza et al (2012) verificaram aumento, em até 6 graus, na temperatura do ar onde havia cultivo de café a pleno sol, em comparação a áreas de sistema agroflorestal ou floresta. Pérez-Marin et al (2006) constataram menores valores de temperatura do ar sob as árvores de Gliricidia sepium, em sistema agroflorestal, com cultivo de milho, do que a 3 m de distância, durante a época chuvosa e ao fim dela.…”

Section: Resultsunclassified

Desenvolvimento do milho sob influência de árvores de pau-branco em sistema agrossilvipastoril

Mendes

Lacerda

Cavalcante

et al. 2013

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o efeito das árvores de pau-branco (Cordia oncocalyx) sobre parâmetros fisiológicos, altura e biomassa do milho, em diferentes distâncias das árvores, em sistema agrossilvipastoril. Utilizou-se o delineamento experimental de blocos ao acaso, com quatro tratamentos (distâncias do caule das árvores de 1, 2, 3 e 4 m), além do controle (plantas do cultivo tradicional), e cinco repetições. Cada parcela consistiu de uma árvore de pau-branco, ao centro, e linhas de milho plantadas nas quatro distâncias avaliadas do caule. As medidas fisiológicas e a produção de matéria seca foram registradas aos 30, 60 e 90 dias após o semeio do milho. As plantas sob a copa do pau-branco, a 1 e 2 m do caule, tiveram suas trocas gasosas, altura e produção de matéria seca afetadas pelas árvores. As plantas cultivadas a 3 m do caule tiveram desempenho semelhante ao observado no cultivo tradicional, e as cultivadas a 4 m apresentaram maior fotossíntese, condutância estomática, transpiração, altura e produção de matéria seca. As plantas de milho sob a copa são afetadas negativamente pelo sombreamento das árvores, enquanto as plantas fora da copa podem se beneficiar da presença das árvores no sistema.Termos para indexação: Cordia oncocalyx, Zea mays, agrossilvicultura, cultivo consorciado, integração lavoura-pecuária-floresta, sistemas agroflorestais. Development of maize under influence of "pau-branco" trees in an agrosilvopastoral systemAbstract -The objective of this work was to evaluate the effect of "pau-branco" (Cordia oncocalyx) trees on physiological parameters, height, and biomass of maize at different distances from the trees in an agrosilvipastoral system. The experimental design was a randomized complete block with four treatments (distances from trees of 1, 2, 3, and 4 m), besides a control (plants cultivated in the traditional system), and five replicates. The plots consisted of one "pau-branco" tree at the center, and maize rows planted at the four evaluated distances from the tree stem. Physiological measurements and dry matter production were recorded at 30, 60, and 90 days after the sowing of maize. The plants under the canopy of "pau-branco" -at 1 and 2 m from the stem -had their gas exchange, height, and dry matter production affected by the trees. The plants 3 m away from the stem had similar performance to those in the traditional system, and the plants at 4 m of distance had higher photosynthesis, stomatal conductance, transpiration, height, and dry mass production. Maize plants under the canopy are negatively affected by tree shading, whereas plants outside the canopy can be favored by the presence of trees in the system.

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Section: Resultsunclassified

Desenvolvimento do milho sob influência de árvores de pau-branco em sistema agrossilvipastoril

Mendes

Lacerda

Cavalcante

et al. 2013

Pesq. agropec. bras.

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“…timber, fuelwood, fruit, and high value niche markets) or environmental (e.g. biodiversity conservation, carbon sequestration and buffering changes in temperature and precipitation), and can enhance the sustainability and resilience of agricultural systems (Cerdán et al 2012;Nzeyimana et al 2013;Perfecto et al 2007;De Souza et al 2012). However, the extent to which ES are beneficial for coffee productivity depend on the local environment, livelihood strategies of producers, local market conditions (e.g.…”

Section: Introductionmentioning

confidence: 99%

Local tree knowledge can fast-track agroforestry recommendations for coffee smallholders along a climate gradient in Mount Elgon, Uganda

et al. 2017

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Arabica coffee (Coffea arabica) is economically important for many smallholder farmers in the Mount Elgon region of East Uganda, but its production is increasingly threatened by climate change. However, ecosystem services (ES) provided by companion trees in coffee agroforestry systems (AFS) can help farmers adapt to climate change. The objectives of this research were to develop agroforestry species recommendations and tailor these to the farmers' needs and local context, taking into consideration gender. Local knowledge of agroforestry species and ES preferences was collected through farmer interviews and rankings. Using the Bradley-Terry approach, analysis was done along an altitudinal gradient in order to study different climate change scenarios for coffee suitability. Farmers had different needs in terms of ES and tree species at different altitudes, e.g. at low altitude they need a relatively larger set of ES to sustain their coffee production and livelihood. Local knowledge is found to be gender blind as no differences were observed in the rankings of species and ES by men and women. Ranking species by ES and ranking ES by preference is a useful method to help scientists and extension agents to use local knowledge for the development of recommendations on companion trees in AFS for smallholder farmers.

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“…In Brazil, studies about agroforest have been carried out mainly in the Amazon and the Atlantic Forest region, focusing on plantations of cupuaçu and pupunha (Alfaia et al 2004), cocoa (Moço et al 2010) and coffee (Souza et al 2012). In the semiarid region of Brazil, studies have focused on the cultivation of maize and pasture, investigating aspects such as water and nutrient loss (Aguiar et al 2010), physical quality of the soil (Silva et al 2011), floristics and phytosociology (Campanha et al 2011), nutrient dynamics, and microclimate (Menezes et al 2002, Maia et al 2008.…”

Section: Introductionmentioning

confidence: 99%

Ecophysiology of deciduous plants grown at different densities in the semiarid region of Brazil

Mendes¹,

Lacerda²,

Fernandes³

et al. 2013

Theor. Exp. Plant Physiol.

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Physiological differences in the Cordia oncocalyx tree growing at different densities in two distinct areas were investigated.An agrosilvopastoral system (AGP) and a secondary forest (SF) were studied. Under both types of land-use, C. oncocalyx presented a relative frequency of approximately 50%, and absolute densities of 670 and 80 individuals per hectare, respectively. Net photosynthesis (A), stomatal conductance (g s ), and transpiration (E) were measured, and the SPAD index was recorded in sun leaves from the canopy and shade leaves from the lower canopy, in both the wet and dry seasons. We quantified the dry biomass of leaves and fruit on a per-tree basis at the end of the wet season. Net photosynthesis was higher in shaded leaves in the AGP in the wet season, reaching an average of 4.8 µmol m -2 s -1 against 3.2 µmol m -2 s -1 under SF. As trees began to shed their leaves at the beginning of the dry season and more radiation reached the shaded leaves, there was an increase in SF for A, depending on the intensity of light reaching the leaves. In the sun leaves, gas exchange was similar for the land-use systems during the wet season, but stronger in AGP than under SF during the dry season. This happened when the leaves in AGP retained more relative water content during a period of low gravimetric levels of the soil water. The lower tree density in AGP promoted a higher SPAD index and dry biomass in both the sun and shaded leaves, and allowed greater A, E and g s rates in the sun leaves at the beginning of the dry period.

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Protective shade, tree diversity and soil properties in coffee agroforestry systems in the Atlantic Rainforest biome

Cited by 166 publications

References 45 publications

Desenvolvimento do milho sob influência de árvores de pau-branco em sistema agrossilvipastoril

Desenvolvimento do milho sob influência de árvores de pau-branco em sistema agrossilvipastoril

Local tree knowledge can fast-track agroforestry recommendations for coffee smallholders along a climate gradient in Mount Elgon, Uganda

Ecophysiology of deciduous plants grown at different densities in the semiarid region of Brazil

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