Estimativa da biomassa de cafeeiros em sistemas agroflorestais sob manejo orgânico e convencional em diferentes arranjos

Meireles, Ivan Edson da Silva; Matsumoto, Sylvana Naomi; Reis, Cristina Andrade Santos; Pereira, Luanna Fernandes; Oliveira, Ueliton Soares de; Barreto-Garcia, Patrícia Anjos Bittencourt; Prado, Thiago Reis; Ramos, Paula Acácia Silva

doi:10.5327/z2176-947820190488

Cited by 2 publications

(2 citation statements)

References 16 publications

(21 reference statements)

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“…According to Defrenet et al (2016), even though species in AFS exploit different soil niches, coffee roots often dominate the fine root population of the system in surface layers. It is due to higher root biomass in coffee AFS (MEIRELES et al, 2019).…”

Section: Fine Root Contribution To the Soil Carbon Stock Of An Agrofomentioning

confidence: 99%

Fine root contribution to the soil carbon stock of an agroforestry system in a Caatinga-Atlantic Forest transition zone

Monroe

Barreto-Garcia

Lima

et al. 2020

Rev. Bras. Ciênc. Ambient. (Online)

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The objective of this work was to evaluate the distribution of fine roots and its influence on the soil organic carbon stock, at a depth of 20 cm, in a Grevillea robusta and Coffea arabica agroforestry system. The study was conducted in an agroforestry system established 15 years ago in a transition area of Caatinga and Atlantic Forest biomes in Brazil. G. robusta trees representing the most frequent diameter class were selected, and three distances of these trees (0, 0.75 and 1.50 m) and two soil collection depths (0–10 and 10–20 cm) were defined. The root samples were scanned and quantified using a software program. There was a general predominance of roots with a diameter of 0.6 mm at the shortest distance from the surface layer, while there was a predominance of roots with a diameter of 0.4 mm in the 10–20 cm layer. The root carbon stock at a distance of 0.75 m was higher at a depth of 0–10 cm (0.60 Mg ha-1). The soil organic carbon stock also showed higher results in the 0–10 cm layer compared to the 10–20 cm layer, although with significant variation only in the distance of 1.5 m. There was a higher concentration of fine roots in the topsoil, probably influenced by a greater availability of water and nutrients from plant residues. The soil carbon stock is not closely related to root density or root carbon stock. The data presented in this study do not provide a definitive conclusion.

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Section: Fine Root Contribution To the Soil Carbon Stock Of An Agrofomentioning

confidence: 99%

Fine root contribution to the soil carbon stock of an agroforestry system in a Caatinga-Atlantic Forest transition zone

Monroe

Barreto-Garcia

Lima

et al. 2020

Rev. Bras. Ciênc. Ambient. (Online)

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“…Agroforestry systems are important forms of sustainable land use, with activities that may produce substantial environmental benefits, such as reducing the risk of extreme temperatures (Moreira et al, 2018;Coltri et al, 2019), promoting carbon sequestration and biomass accumulation (Meireles et al, 2019), nutrient cycling by means of a higher litter deposition (Galetti et al, 2018), and improving water use efficiency (Moreira et al, 2018;Padovan et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Arabica coffee and cedar tree: integrating biotic and abiotic drivers

Pereira

Matsumoto

Oliveira

et al. 2021

Rev. Bras. Ciênc. Ambient. (Online)

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Agroforestry systems are important forms of sustainable farming, providing several ecosystem services. However, characterization and management of factors such as thermal and light heterogeneity, as well as interactions between trees and coffee plants, are determinants for achieving the desired sustainability. This study aimed to verify whether different distances between Coffea arabica L. and Australian red cedar can change soil and microclimate characteristics and how they alter morphological and physiological attributes of coffee plants over the rainy season and a prolonged drought period (veranico) in Summer. The trial was carried out in the municipality of Barra do Choça, in an area with Australian red cedar trees (Toona ciliata M. Roem), distributed in two hedges, spaced 19.8 × 3 m apart, in a northeast-southwest direction, and coffee plants var. Catucaí Vermelho (3.3 × 0.5 m). Treatments were defined by the distance between the coffee plants and the first row of the Australian red cedar hedge (3.3 m, T1; 6.6 m, T2; 9.9 m, T3; 13.2 m, T4; 16.4 m, T5). Morphology and physiology of coffee plants, soil temperature, incident light on coffee plants, and the allelopathic potential of Australian red cedar leaf extracts were assessed in the wet and dry season of the 2016–2017 Summer. Temperatures fluctuated less in experimental units close to the hedge. The reduced growth of coffee plants close to the hedges was related to self-shading associated with light restriction by the trees. The experiment showed the allelopathic potential of Australian red cedar leaves.

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Estimativa da biomassa de cafeeiros em sistemas agroflorestais sob manejo orgânico e convencional em diferentes arranjos

Cited by 2 publications

References 16 publications

Fine root contribution to the soil carbon stock of an agroforestry system in a Caatinga-Atlantic Forest transition zone

Fine root contribution to the soil carbon stock of an agroforestry system in a Caatinga-Atlantic Forest transition zone

Arabica coffee and cedar tree: integrating biotic and abiotic drivers

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