The Relative Importance of Carbohydrate and Nitrogen for the Resprouting Ability of Quercus crispula Seedlings

Kabeya, Daisuke; Sakai, Satoki

doi:10.1093/aob/mci200

Cited by 59 publications

(44 citation statements)

References 38 publications

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“…Some woody plants store enough carbohydrate reserves in stumps and roots to meet more than one resprouting event following a disturbance (Carpenter et al 2008;Luostarinen and Kauppi 2005). To recover after a browsing event which removes leaf material, a plant needs viable meristems and carbon reserves, at least until new shoots become functional and can photosynthesize (Kabeya and Sakai 2005). Resprouting trees also rely on stored carbohydrate reserves to support growth and respiration until sufficient leaf area has been regrown for carbon assimilation to meet growth demands (Chapin et al 1990;Bond and Midgley 2001).…”

Section: Introductionmentioning

confidence: 99%

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The effects of repeated cutting on coppice response of Terminalia sericea

Moyo

Scholes

Twine

2014

Trees

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Key message Although exposure to multiple cutting cycles reduces stored reserves, shoot diameter and shoot length, it, however, increases shoot production per resprouting stump and foliar nitrogen. Abstract In disturbance-prone environments with fluctuating seasonal rainfall such as savannas, the repeated cutting of the same trees eventually results in a possible decline in tree abundance. The effects of subjecting Terminalia sericea trees to one, two and multiple (eight) cutting events over a period of 2 years on coppice response were investigated in a savanna woodland in South Africa. Resprout shoot diameter, shoot length and the total cumulative diameter were lower in trees exposed to a high number of cutting events compared to trees exposed to one cutting event. Increasing the number of cutting events significantly reduced stem total non-structural carbohydrate levels in trees indicating a depletion of stored reserves. Foliar carbon content remained largely the same, while leaf nitrogen and phosphorus concentrations significantly increased with each cutting event, relative to uncut trees. Results indicate that trees cut once had not replenished depleted carbohydrate reserves even after a period of 18 months during which no cutting took place. Sustainable utilization of this tree species must allow for at least more than 18 months of undisturbed growth between harvests to allow for the replenishing of reserves.

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Section: Introductionmentioning

confidence: 99%

“…When photosynthetically efficient, a resprouting plant can reach peak growth and then allocate carbon towards storage (Kabeya and Sakai 2005). For example, Van der Heyden and Stock (1996) showed that after branch cutting, regrowth of the shrub Osteospermum sinuatum Norl.…”

Section: Introductionmentioning

confidence: 99%

The effects of repeated cutting on coppice response of Terminalia sericea

Moyo

Scholes

Twine

2014

Trees

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“…A maior taxa inicial de crescimento da brotação, em comparação à de plantas estabelecidas a partir de mudas, se deve, principalmente, à presença de um sistema radicular já estabelecido, o que facilita a absorção de água e nutrientes e o uso de reservas orgânicas e inorgânicas, presentes na cepa ou nas raízes (Blake, 1983;Reis & Kimmins, 1986;Teixeira et al, 2002;Kabeya & Sakai, 2005;Walters et al, 2005). Reis & Kimmins (1986) observaram que, após decepa de plantas jovens de eucalipto que cresciam em vasos, o sistema radicular contribuiu com 75% do fósforo requerido para o crescimento dos brotos, em solo relativamente fértil, e 100%, em solo pouco fértil, 1,5 mês após decepa das plantas.…”

Section: Introductionunclassified

Decepa de plantas jovens de eucalipto e manejo de brotações, em um sistema agroflorestal

Reis

Leite

et al. 2008

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar o uso de decepa de plantas jovens de eucalipto, para produção de árvores de menor diâmetro, com colheita facilitada por pequenos produtores; ou para recuperação de povoamentos jovens severamente danificados e produção de biomassa para energia em ciclos curtos. O experimento foi conduzido em sistema agroflorestal, com espaçamento entre plantas de 9,5x4 m. O crescimento de plantas intactas foi comparado ao de brotações de decepas realizadas aos nove ou doze meses após plantio. Aos seis ou nove meses após a decepa, realizou-se a desbrota, para deixar dois ou três brotos por cepa. Quando a desbrota foi realizada aos 12 meses após a decepa, todos os brotos dominantes foram deixados. Um tratamento sem desbrota também foi avaliado. Aos 42 meses após plantio, o tratamento sem desbrota apresentou o mesmo número de brotos por cepa que o de plantas desbrotadas para três brotos. O diâmetro das brotações foi equivalente a 69% do valor estimado para as plantas intactas. O valor assintótico de produção das brotações, da maioria dos tratamentos de decepa aos nove meses, foi igual ao das plantas intactas, o que evidencia a viabilidade da decepa sem a realização da desbrota, em sistemas agroflorestais.Termos para indexação: Eucalyptus, clone de eucalipto, desbrota, madeira para carvão, recuperação de povoamentos. Juvenile eucalypt plant coppicing and sprout management in agroforestry systemAbstract -This study aimed to evaluate juvenile eucalypt clone plant coppicing, in order to obtain small diameter logs, in the first rotation, which facilitates harvesting by small farmers; or to recover damaged young stands and to produce biomass for energy in short rotations. The experiment was carried out in an agroforestry system with 9.5x4 m spacing. Intact plant growth was compared to sprout growth from coppicing at nine and twelve months after planting. At six or nine months after coppicing, sprout thinning was carried out to leave two or three sprouts per stump. When thinning was done after 12 months of coppicing, all dominant sprouts were left. A treatment without thinning was also evaluated. Forty-two months after planting, treatment without thinning showed about the same amount of sprouts per stump as those thinned to three sprouts per stump. The estimated asymptotic value for sprout diameter was 69% of that for intact plants. The asymptotic value for sprout production, for most treatments of plants coppiced nine months after planting, was similar to that obtained for intact plants, which indicates that coppicing young eucalypt plants, without sprout thinning, can be used in agroforestry systems.

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“…Greater or lesser concentrations of some nutrients in the regrowing tissues occurs as a result of increased metabolic activity linked with the capacity of translocated nutrients from subterranean organs to above ground plant parts [59,60], which was observed in managed rosewood plantations.…”

Section: Changes In Nutritional Status Associated With the Managementmentioning

confidence: 99%

Sequential Management of Commercial Rosewood (Aniba rosaeodora Ducke) Plantations in Central Amazonia: Seeking Sustainable Models for Essential Oil Production

Krainovic

Almeida

Desconci

et al. 2017

Forests

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Rosewood (Aniba rosaeodora Ducke) is an endangered tree that produces essential oil of high commercial value. However, technical-scientific knowledge about cultivation is scarce and studies are needed to examine the management viability. The current study evaluated rosewood aboveground biomass management, measuring the export of nutrients resulting from harvesting and testing sustainable management models. The crown of 36 rosewood trees were pruned and 108 trees cut at 50 cm above the soil in two regions in Central Amazonia. Post-harvest performance of sprouting shoots was evaluated and after, sprouting shoots were pruned so that the development of two, three and all shoots was permitted. Nutrient stock estimation was calculated as the product of mass and nutrient concentration, which allowed nutritional replacement to be estimated. The pruning facilitates regrowth by 40.11% of the initial mass while by cut regrow 1.45%. Chemical attributes of regrowth biomass differed significantly prior to management and regrowth had a significant correlation with the reserves in root tissues and with the pre -management status of the individual tree. Driving sprouts resulted in significantly larger growth increments and may provide a form of management that can viably be adopted. Biomass sequential management resulted in high nutrient exports and the amount of fertilizer needed for replenishment depended on the intensity and frequency of cropping. Compared with the cut of the tree, pruning the canopy reduces fertilizers that are required to replenish amount by 44%, decreasing to 26.37% in the second rotation. The generated knowledge contributes to this silvicultural practice as it becomes ecologically and economically viable.

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The Relative Importance of Carbohydrate and Nitrogen for the Resprouting Ability of Quercus crispula Seedlings

Cited by 59 publications

References 38 publications

The effects of repeated cutting on coppice response of Terminalia sericea

The effects of repeated cutting on coppice response of Terminalia sericea

Decepa de plantas jovens de eucalipto e manejo de brotações, em um sistema agroflorestal

Sequential Management of Commercial Rosewood (Aniba rosaeodora Ducke) Plantations in Central Amazonia: Seeking Sustainable Models for Essential Oil Production

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