Effects of spacing, species and coppicing on leaf area, light interception and photosynthesis in short rotation forestry

Proe, M. F.; Griffiths, J.H.; Craig, Jared M.

doi:10.1016/s0961-9534(02)00060-0

Cited by 61 publications

(42 citation statements)

References 27 publications

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“…The results showed that better performance contributed to a greater woody stem yield in the narrow spacings of 1 × 0.25 and 1 × 0.5 m as compared to that of the widest spacing of 2 × 1 m in the 1 st year. In accordance with Proe et al [18] stated that maximum yields are generally achieved early in dense plantations whereas the widest spacing may be suitable for harvesting cycle over one year in order to get high yield. However, compare to the 1 st year, the widest spacing of 2 × 1 m increased the dry weight of woody stem more 60%, 91% and 58% and the woody stem of the narrowest spacing (1 × 0.25 m) increased 25%, 44% and 7% in the 2 nd , 3 rd and 4 th year, respectively.…”

Section: Discussionsupporting

confidence: 67%

Effect of Spacing on Growth, Biomass Yield and Quality of Leucaena (<i>Leucaena leucocephala</i> (Lam.) de Wit.) for Renewable Energy in Thailand

Chotchutima¹,

Kangvansaichol²,

Tudsri³

et al. 2013

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The present study was conducted to determine the effect of spacing on the growth, biomass production and wood quality of leucaena in order to be used as a fuel crop. Leucaena was grown in a field experiment at the Suwanvajokkasikit Research Station, Pak Chong, Nakhon Ratchasima, Thailand in 2006-2010. The experiment was arranged in a randomized complete block design with 4 replications. The treatment consisted of six spacings (1 × 0.25, 1 × 0.5, 1 × 1, 1 × 1.5, 2 × 0.5 and 2 × 1 m). The results showed that spacing had a significant effect on plant height, diameter at breast height, the number of coppice stumps and biomass yield. Wider spacings resulted in greater plant height. The widest spacing (2 × 1 m) exhibited the higher stem diameter and sprout number than the narrow spacing. The narrowest spacing of 1 × 0.25 m spacing produced the highest total dry weight of leaf, woody stem and biomass yield. The spacing did not have an influence on the heating value and the content of H, N, S, Mg, Cl and ash. However, some of the chemical compositions show significant different with different spacings such as C, O, P, K and Ca content.

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Section: Discussionsupporting

confidence: 67%

Effect of Spacing on Growth, Biomass Yield and Quality of Leucaena (<i>Leucaena leucocephala</i> (Lam.) de Wit.) for Renewable Energy in Thailand

Chotchutima¹,

Kangvansaichol²,

Tudsri³

et al. 2013

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“…Table 1) vs. narrow-spaced plantations of multi-stem willow (12500-18000 plants/ha), may cause different below-canopy light climate, because multi-stem architecture of narrow-spaced willow probably covers the ground more effectively than single-stem architecture in much wider-spaced plantations of poplar. During the first two years after establishment, Proe et al (2002) found that coppicing and wider spacing had a reducing effect on PAR (single stems of alder and poplar of 1.0 m (10000 plants/ ha) and 1.5 m spacing (4400 plants/ha); multi-stem alder, poplar and willow of 1.0 m spacing), but light interception was similar across all treatments after three years.…”

Section: Ground Vegetation Cover Is Greatly Affected By Plantation Agmentioning

confidence: 96%

Stand age characteristics and soil properties affect species composition of vascular plants in short rotation coppice plantations

Baum¹,

Weih²,

Bolte³

2012

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Woody biomass plantations on agricultural sites are an attractive source of biomass for bioenergy, but their effects on local biodiversity are unclear. This study's objective was to evaluate the influences of light availability, plantation age, and soil properties on phytodiversity in short rotation coppice (SRC) plantations. Ground vegetation mapping, irradiance measurement (PAR), and surface soil analyses were conducted in 15 willow and poplar SRC plantations in Central Sweden and Northern Germany. We performed different multivariate statistical methods like cluster analysis (CA), principal component analysis (PCA), and canonical correspondence analysis (CCA) in order to analyze species composition and the influence of irradiance, age, and soil properties on phytodiversity. CA revealed highest species composition similarities in SRC plantations in close proximity. PCA identified humus quality/essential plant nutrients, plantation age/irradiance effects, soil acidity and shoot age as the four principal components of the recorded parameters. The ground vegetation cover was negatively correlated with the plantation age component and positively with the nutrient component. With an increase in the plantation age component, a shift in species composition was proven towards more forest habitat species, more nutrient-demanding species, and increasing occurrence of indicator species for basic soils. Applying Ellenberg indicator values, basic soil indicator species corresponded in occurrence to increasing nutrient availability. However, species richness was not related to any of our studied site variables. Judged from CCA, species composition in SRC plantations was influenced by plantation age/ irradiance, and nutrient availability; soil acidity and shoot age had no significant influence. Young poplar and willow SRC plantations showed greatest variation in photosynthetically active radiation (PAR). Our findings suggest that phytodiversity in SRC plantations depends mainly on plantation age and thus shifts over time. Sarah Baum et al. / BioRisk 7: 51-71 (2012) 52

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“…Conjuntamente con la densidad de plantación también se han ensayado diferentes turnos corta, desde turnos anuales hasta turnos próximos a los habituales para estas especies de crecimiento rápido (unos 14 años), con el fin de optimizar el cultivo y su aprovechamiento (p. ej. Willebrad et al, 1993;Proe et al, 2002).…”

Section: Espaciamientos Y Turnos De Cortaunclassified

“…Willebrand y Proe et al, 2002). El turno óptimo está determinado, en parte, por la producción de biomasa máxima alcanzada en ese periodo de tiempo.…”

Section: Espaciamientos Y Turnos De Cortaunclassified

“…Armstrong et al, 1999;Proe et al, 2002;Kauter et al, 2003) que señalan la importancia del espaciamiento y de la interacción del espaciamiento/genotipo sobre la mortalidad de las cepas, la cual se atribuye a la excesiva competencia que aparece en espaciamientos tan pequeños. Por tanto, el esparcimiento, edad de rotación y supervivencia están estrechamente ligados.…”

Section: Espaciamientos Y Turnos De Cortaunclassified

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Populus genus for the biomass production for energy use: a review

Sixto¹,

Hernández²,

Barrio

et al. 2007

For. syst.

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IntroducciónEl Plan de Fomento de las Energías Renovables (PFER) en España (2005España ( -2010 (IDAE, 2004) señala la excesiva dependencia exterior en materia energéti-ca (80%), siendo necesario, tanto por motivos de estrategia económica como social y medioambiental, procurar que se produzcan incrementos significativos de las fuentes de energía renovable, entre ellas la biomasa, al mismo tiempo que se incida en la mejora de la ef iciencia energética. Sin embargo, la revisión del PFER para el periodo -2004 (IDAE, 2004 indicó un desarrollo muy inferior al deseable en el área de la biomasa para poder cumplir con los objetivos fijados.Los nuevos retos comunitarios, más ambiciosos en cuanto a utilización de energías renovables para 2020, requieren, por otra parte, incrementar el uso de biomasa para la producción de calor, electricidad y biocombustibles.El ámbito de la biomasa se encuentra condicionado, en general, por una fuerte heterogeneidad, tanto por el tipo de materia prima a emplear como por los posibles usos energéticos derivados, así como por su interferencia con los mercados agrícola y forestal. Tradicionalmente su uso ha sido térmico, habiéndose dePlantaciones del género Populus para la producción de biomasa con fines energéticos: revisión ResumenLa necesidad de incrementar la producción de energía de origen renovable en España, pasa por considerar la producción de biomasa como una de las posibles alternativas. Entre los diferentes tipos de biomasa posible, aquella que se obtiene a través de cultivos diseñados específicamente para ello, los cultivos energéticos, permite la planificación en la obtención del recurso al mismo tiempo que proporcionan alternativas al abandono de cultivos tradicionales en el ámbito rural. El presente trabajo tiene como objetivo revisar el estado actual de conocimiento de uno de los cultivos leñosos con mayores expectativas para la producción de energía, las plantaciones de Populus spp. cultivado en alta densidad y turnos cortos, en su contribución a la producción de biomasa para energía, incidiendo en la importancia del material base a emplear, el diseño del cultivo y los tratamientos culturales a realizar.Palabras clave: biomasa, cultivos energéticos, chopo, SRF. AbstractPopulus genus for the biomass production for energy use: a reviewMuch attention is currently focused on biomass production as one possible alternative energy source because of the need to increase the amount of energy produced in Spain from renewable energy sources. Amongst the different types of biomass available, those crops which are specifically designed for the purpose, the so-called «energy crops», allow us not only to plan the production of this resource but also to provide a viable alternative for agricultural land in areas where traditional crops are gradually being abandoned. The objective of this study is to revise the current knowledge base in relation to Populus spp.; a woody crop with great potential for this purpose which can be grown at high densities in short rotation coppices. Its suitabilit...

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Effects of spacing, species and coppicing on leaf area, light interception and photosynthesis in short rotation forestry

Cited by 61 publications

References 27 publications

Effect of Spacing on Growth, Biomass Yield and Quality of Leucaena (<i>Leucaena leucocephala</i> (Lam.) de Wit.) for Renewable Energy in Thailand

Effect of Spacing on Growth, Biomass Yield and Quality of Leucaena (<i>Leucaena leucocephala</i> (Lam.) de Wit.) for Renewable Energy in Thailand

Stand age characteristics and soil properties affect species composition of vascular plants in short rotation coppice plantations

Populus genus for the biomass production for energy use: a review

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Effects of spacing, species and coppicing on leaf area, light interception and photosynthesis in short rotation forestry

Cited by 61 publications

References 27 publications

Effect of Spacing on Growth, Biomass Yield and Quality of Leucaena (&lt;i&gt;Leucaena leucocephala&lt;/i&gt; (Lam.) de Wit.) for Renewable Energy in Thailand

Effect of Spacing on Growth, Biomass Yield and Quality of Leucaena (&lt;i&gt;Leucaena leucocephala&lt;/i&gt; (Lam.) de Wit.) for Renewable Energy in Thailand

Stand age characteristics and soil properties affect species composition of vascular plants in short rotation coppice plantations

Populus genus for the biomass production for energy use: a review

Contact Info

Product

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Effect of Spacing on Growth, Biomass Yield and Quality of Leucaena (<i>Leucaena leucocephala</i> (Lam.) de Wit.) for Renewable Energy in Thailand

Effect of Spacing on Growth, Biomass Yield and Quality of Leucaena (<i>Leucaena leucocephala</i> (Lam.) de Wit.) for Renewable Energy in Thailand