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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
27/04/2021 |
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Actualizado : |
12/08/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
BIRU, F.N; ISLAM, T.; CIBILS-STEWART, X.; CAZZONELLI, CH.I.; ELBAUM, R.; JOHNSON, S.N. |
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Afiliación : |
FIKADU N. BIRU, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.; TARIKUL ISLAM, Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia; XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./ Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.; CHRISTOPHER I. CAZZONELLI, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.; RIVKA ELBAUM5, R H Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel.; SCOTT N. JOHNSON, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia. |
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Título : |
Anti-herbivore silicon defences in a model grass are greatest under Miocene levels of atmospheric CO2. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Global Change Biology, Volume 27, Issue 12, Pages 2959-2969, June 2021. Doi: https://doi.org/10.1111/gcb.15619 |
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DOI : |
10.1111/gcb.15619 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 8 February 2021/Accepted: 12 March 2021./ First published: 27 March 2021: Email: f.biru@westernsydney.edu.au. |
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Contenido : |
Abstract:
Silicon (Si) has an important role in mitigating diverse biotic and abiotic stresses in plants, mainly via the silicification of plant tissues. Environmental changes such as atmospheric CO2 concentrations may affect grass Si concentrations which, in turn, can alter herbivore performance. We recently demonstrated that pre?industrial atmospheric CO2 increased Si accumulation in Brachypodium distachyon grass, yet the patterns of Si deposition in leaves and whether this affects insect herbivore performance remains unknown. Moreover, it is unclear whether CO2?driven changes in Si accumulation are linked to changes in gas exchange (e.g. transpiration rates). We therefore investigated how pre?industrial (reduced; rCO2, 200 ppm), ambient (aCO2, 410 ppm) and elevated (eCO2, 640 ppm) CO2 concentrations, in combination with Si?treatment (Si+ or Si?), affected Si accumulation in B. distachyon and its subsequent effect on the performance of the global insect pest, Helicoverpa armigera. rCO2 increased Si concentrations by 29% and 36% compared to aCO2 and eCO2 respectively. These changes were not related to observed changes in gas exchange under different CO2 regimes, however. The increased Si accumulation under rCO2 decreased herbivore relative growth rate (RGR) by 120% relative to eCO2, whereas rCO2 caused herbivore RGR to decrease by 26% compared to eCO2. Si supplementation also increased the density of macrohairs, silica and prickle cells, which was associated with reduced herbivore performance. There was a negative correlation among macrohair density, silica cell density, prickle cell density and herbivore RGR under rCO2 suggesting that these changes in leaf surface morphology were linked to reduced performance under this CO2 regime. To our knowledge, this is the first study to demonstrate that increased Si accumulation under pre?industrial CO2 reduces insect herbivore performance. Contrastingly, we found reduced Si accumulation under higher CO2, which suggests that some grasses may become more susceptible to insect herbivores under projected climate change scenarios. MenosAbstract:
Silicon (Si) has an important role in mitigating diverse biotic and abiotic stresses in plants, mainly via the silicification of plant tissues. Environmental changes such as atmospheric CO2 concentrations may affect grass Si concentrations which, in turn, can alter herbivore performance. We recently demonstrated that pre?industrial atmospheric CO2 increased Si accumulation in Brachypodium distachyon grass, yet the patterns of Si deposition in leaves and whether this affects insect herbivore performance remains unknown. Moreover, it is unclear whether CO2?driven changes in Si accumulation are linked to changes in gas exchange (e.g. transpiration rates). We therefore investigated how pre?industrial (reduced; rCO2, 200 ppm), ambient (aCO2, 410 ppm) and elevated (eCO2, 640 ppm) CO2 concentrations, in combination with Si?treatment (Si+ or Si?), affected Si accumulation in B. distachyon and its subsequent effect on the performance of the global insect pest, Helicoverpa armigera. rCO2 increased Si concentrations by 29% and 36% compared to aCO2 and eCO2 respectively. These changes were not related to observed changes in gas exchange under different CO2 regimes, however. The increased Si accumulation under rCO2 decreased herbivore relative growth rate (RGR) by 120% relative to eCO2, whereas rCO2 caused herbivore RGR to decrease by 26% compared to eCO2. Si supplementation also increased the density of macrohairs, silica and prickle cells, which was associated with reduced he... Presentar Todo |
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Palabras claves : |
Climate change; Defence trade-offs; Insect herbivore; INSECTO HERBIVORO; Plant defences; Silicon. |
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Thesagro : |
CAMBIO CLIMÁTICO. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03125naa a2200289 a 4500
001 1061999
005 2021-08-12
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1111/gcb.15619$2DOI
100 1 $aBIRU, F.N
245 $aAnti-herbivore silicon defences in a model grass are greatest under Miocene levels of atmospheric CO2.$h[electronic resource]
260 $c2021
500 $aArticle history: Received: 8 February 2021/Accepted: 12 March 2021./ First published: 27 March 2021: Email: f.biru@westernsydney.edu.au.
520 $aAbstract: Silicon (Si) has an important role in mitigating diverse biotic and abiotic stresses in plants, mainly via the silicification of plant tissues. Environmental changes such as atmospheric CO2 concentrations may affect grass Si concentrations which, in turn, can alter herbivore performance. We recently demonstrated that pre?industrial atmospheric CO2 increased Si accumulation in Brachypodium distachyon grass, yet the patterns of Si deposition in leaves and whether this affects insect herbivore performance remains unknown. Moreover, it is unclear whether CO2?driven changes in Si accumulation are linked to changes in gas exchange (e.g. transpiration rates). We therefore investigated how pre?industrial (reduced; rCO2, 200 ppm), ambient (aCO2, 410 ppm) and elevated (eCO2, 640 ppm) CO2 concentrations, in combination with Si?treatment (Si+ or Si?), affected Si accumulation in B. distachyon and its subsequent effect on the performance of the global insect pest, Helicoverpa armigera. rCO2 increased Si concentrations by 29% and 36% compared to aCO2 and eCO2 respectively. These changes were not related to observed changes in gas exchange under different CO2 regimes, however. The increased Si accumulation under rCO2 decreased herbivore relative growth rate (RGR) by 120% relative to eCO2, whereas rCO2 caused herbivore RGR to decrease by 26% compared to eCO2. Si supplementation also increased the density of macrohairs, silica and prickle cells, which was associated with reduced herbivore performance. There was a negative correlation among macrohair density, silica cell density, prickle cell density and herbivore RGR under rCO2 suggesting that these changes in leaf surface morphology were linked to reduced performance under this CO2 regime. To our knowledge, this is the first study to demonstrate that increased Si accumulation under pre?industrial CO2 reduces insect herbivore performance. Contrastingly, we found reduced Si accumulation under higher CO2, which suggests that some grasses may become more susceptible to insect herbivores under projected climate change scenarios.
650 $aCAMBIO CLIMÁTICO
653 $aClimate change
653 $aDefence trade-offs
653 $aInsect herbivore
653 $aINSECTO HERBIVORO
653 $aPlant defences
653 $aSilicon
700 1 $aISLAM, T.
700 1 $aCIBILS-STEWART, X.
700 1 $aCAZZONELLI, CH.I.
700 1 $aELBAUM, R.
700 1 $aJOHNSON, S.N.
773 $tGlobal Change Biology, Volume 27, Issue 12, Pages 2959-2969, June 2021. Doi: https://doi.org/10.1111/gcb.15619
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Registro original : |
INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
15/06/2021 |
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Actualizado : |
15/06/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
HIRIGOYEN, A.; ACUNA. M.; RACHID, C.; FRANCO, J.; NAVARRO-CERRILLO, R. |
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Afiliación : |
ANDRES EDUARDO HIRIGOYEN DOMINGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MAURICIO ACUNA, Forest Research Institute, University of the Sunshine Coast, Australia.; ANA CECILIA RACHID CASNATI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JORGE FRANCO, Faculty of Agronomy, University of the Republic, Uruguay.; RAFAEL NAVARRO-CERRILLO, Laboratory of Silviculture, Department of Forestry Engineering, Dendrochronology and Climate Change, DendrodatLab-ERSAF, University of Cordoba, Campus de Rabanales, Córdoba, Spain. |
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Título : |
Use of optimization modeling to assess the effect of timber and carbon pricing on harvest scheduling, carbon sequestration, and net present value of eucalyptus plantations. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Forests, 2021, Volume 12, Issue 6, Article number 651. OPEN ACCESS. Doi: https://doi.org/10.3390/f12060651 |
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ISSN : |
1999-4907 |
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DOI : |
10.3390/f12060651 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 21 March 2021; Revised 10 May 2021; Accepted 12 May 2021; Published: 21 May 2021.
Academic Editor: Luis Diaz-Balteiro.
The authors thank the Instituto Nacional de Investigaciones Agropecuarias (INIA-Uruguay) for supporting our research work, for help during the fieldwork, and the INIA Scholarship for PhD studies. We are particularly grateful for the support of Leonidas Carrasco Letelier, Roberto Scoz (INIA), Pablo Rodriguez, Carola Odonne, and Juan Carlos de Mello (FOSA). We acknowledge the institutional support of the University of Cordoba-Campus de Excelencia CEIA3.
Corresponding author: Hirigoyen, A.; Instituto Nacional de Investigación Agopecuaria (INIA) Tacuarembó, Ruta 5 km 386, Tacuarembó, Uruguay; email:andreshirigoyen@gmail.com |
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Contenido : |
ABSTRACT.
Quantifying the impact of carbon (C) and timber prices on harvest scheduling and economic returns is essential to define strategies for the sustainable management of short-rotation plantations so that they can provide timber products and contribute to C sequestration. In this paper, we present a mixed-integer linear programming model that optimizes harvest scheduling at the forest level, C sequestration, and Net Present Value (NPV) over a planning period of up to 15 years. The model included revenue from the sale of timber (pulplogs) and credits from the net C sequestered during the life of the stands. In addition, plantation establishment, management, harvesting, and transportation costs were included in the analysis. The study area comprised 88 Eucalyptus grandis W. Hill and Eucalyptus dunnii Maiden stands located in Uruguay, totaling a forest area of nearly 1882 ha. The study investigated the impact of C and timber prices on NPV, harvest schedules, stands? harvest age, timber flows to customers, and C sequestered per period. The maximum NPV among all the scenarios evaluated (USD 7.53 M) was calculated for a C price of 30 USD t?1, an interest rate of 6%, and a timber price of 75 USD m?3 . This was USD 2.14 M higher than the scenario with the same parameters but that included only revenue from timber. C prices also impacted stands? harvest age, C sequestration, and timber flows delivered to end customers. On average, in scenarios that included C prices, timber flows and C sequestration increased by 15.4 and 12.1%, respectively, when C price increased from 5 to 30 USD t?1 . These results demonstrate that harvest scheduling, harvest age, and NPV are very sensitive to C and timber, and that the best economic returns are obtained when the stands are managed to maximize timber production and C sequestration. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. MenosABSTRACT.
Quantifying the impact of carbon (C) and timber prices on harvest scheduling and economic returns is essential to define strategies for the sustainable management of short-rotation plantations so that they can provide timber products and contribute to C sequestration. In this paper, we present a mixed-integer linear programming model that optimizes harvest scheduling at the forest level, C sequestration, and Net Present Value (NPV) over a planning period of up to 15 years. The model included revenue from the sale of timber (pulplogs) and credits from the net C sequestered during the life of the stands. In addition, plantation establishment, management, harvesting, and transportation costs were included in the analysis. The study area comprised 88 Eucalyptus grandis W. Hill and Eucalyptus dunnii Maiden stands located in Uruguay, totaling a forest area of nearly 1882 ha. The study investigated the impact of C and timber prices on NPV, harvest schedules, stands? harvest age, timber flows to customers, and C sequestered per period. The maximum NPV among all the scenarios evaluated (USD 7.53 M) was calculated for a C price of 30 USD t?1, an interest rate of 6%, and a timber price of 75 USD m?3 . This was USD 2.14 M higher than the scenario with the same parameters but that included only revenue from timber. C prices also impacted stands? harvest age, C sequestration, and timber flows delivered to end customers. On average, in scenarios that included C prices, timber flo... Presentar Todo |
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Palabras claves : |
Carbon sequestration; Eucalyptus plantations; Forestry; Harvest age; Harvesting; Mixed-integer programming; Timber harvest scheduling. |
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Asunto categoría : |
K01 Ciencias forestales - Aspectos generales |
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URL : |
https://www.mdpi.com/1999-4907/12/6/651/pdf
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Marc : |
LEADER 03643naa a2200289 a 4500
001 1062138
005 2021-06-15
008 2021 bl uuuu u00u1 u #d
022 $a1999-4907
024 7 $a10.3390/f12060651$2DOI
100 1 $aHIRIGOYEN, A.
245 $aUse of optimization modeling to assess the effect of timber and carbon pricing on harvest scheduling, carbon sequestration, and net present value of eucalyptus plantations.$h[electronic resource]
260 $c2021
500 $aArticle history: Received 21 March 2021; Revised 10 May 2021; Accepted 12 May 2021; Published: 21 May 2021. Academic Editor: Luis Diaz-Balteiro. The authors thank the Instituto Nacional de Investigaciones Agropecuarias (INIA-Uruguay) for supporting our research work, for help during the fieldwork, and the INIA Scholarship for PhD studies. We are particularly grateful for the support of Leonidas Carrasco Letelier, Roberto Scoz (INIA), Pablo Rodriguez, Carola Odonne, and Juan Carlos de Mello (FOSA). We acknowledge the institutional support of the University of Cordoba-Campus de Excelencia CEIA3. Corresponding author: Hirigoyen, A.; Instituto Nacional de Investigación Agopecuaria (INIA) Tacuarembó, Ruta 5 km 386, Tacuarembó, Uruguay; email:andreshirigoyen@gmail.com
520 $aABSTRACT. Quantifying the impact of carbon (C) and timber prices on harvest scheduling and economic returns is essential to define strategies for the sustainable management of short-rotation plantations so that they can provide timber products and contribute to C sequestration. In this paper, we present a mixed-integer linear programming model that optimizes harvest scheduling at the forest level, C sequestration, and Net Present Value (NPV) over a planning period of up to 15 years. The model included revenue from the sale of timber (pulplogs) and credits from the net C sequestered during the life of the stands. In addition, plantation establishment, management, harvesting, and transportation costs were included in the analysis. The study area comprised 88 Eucalyptus grandis W. Hill and Eucalyptus dunnii Maiden stands located in Uruguay, totaling a forest area of nearly 1882 ha. The study investigated the impact of C and timber prices on NPV, harvest schedules, stands? harvest age, timber flows to customers, and C sequestered per period. The maximum NPV among all the scenarios evaluated (USD 7.53 M) was calculated for a C price of 30 USD t?1, an interest rate of 6%, and a timber price of 75 USD m?3 . This was USD 2.14 M higher than the scenario with the same parameters but that included only revenue from timber. C prices also impacted stands? harvest age, C sequestration, and timber flows delivered to end customers. On average, in scenarios that included C prices, timber flows and C sequestration increased by 15.4 and 12.1%, respectively, when C price increased from 5 to 30 USD t?1 . These results demonstrate that harvest scheduling, harvest age, and NPV are very sensitive to C and timber, and that the best economic returns are obtained when the stands are managed to maximize timber production and C sequestration. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
653 $aCarbon sequestration
653 $aEucalyptus plantations
653 $aForestry
653 $aHarvest age
653 $aHarvesting
653 $aMixed-integer programming
653 $aTimber harvest scheduling
700 1 $aACUNA. M.
700 1 $aRACHID, C.
700 1 $aFRANCO, J.
700 1 $aNAVARRO-CERRILLO, R.
773 $tForests, 2021, Volume 12, Issue 6, Article number 651. OPEN ACCESS. Doi: https://doi.org/10.3390/f12060651
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