The role and significance of woody biomass plantations in Swedish agriculture

Christersson, L.; Sennerby-Forsse, L.; Zsuffa, L.

doi:10.5558/tfc69687-6

Cited by 61 publications

(20 citation statements)

References 5 publications

(9 reference statements)

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“…• Superior growth and productivity even at juvenile stages; the highest capacity to convert solar radiation into chemical energy among woody plants under certain climatic conditions (Christersson et al, 1993;Wilkinson, 1999). • Extensive fibrous root system in the many shrub-type species, with the majority of fine-roots found in the upper 40-45 cm of the soil profile; continuous growth of fine roots from May through October (Gray and Sotir, 1996;Rytter and Hansson, 1996).…”

Section: Physiological Characteristicsmentioning

confidence: 98%

Willows Beyond Wetlands: Uses of Salix L. Species for Environmental Projects

Kuzovkina

Quigley

2005

Water Air Soil Pollut

229

142

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Species of Salix characterized by particular physiological adaptations and ecological resilience are predisposed to use in conservation and environmental projects in many climatic zones and adverse microsite conditions. The economic importance of Salix is currently increasing and emerging in a wide array of practical applications to restore damaged ecosystems. Here we describe the ecology, physiological characteristics and agricultural requirements of Salix and present an integrated picture based on literature review, of current uses for willows well beyond wetland and riparian situations. These uses include ecosystem restoration, phytoremediation (phytoextraction, phytodegradation, rhizofiltration and phytostabilization), bioengineering (water and wind erosion, and protective structures), and biomass production for both fuel and fiber.

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Section: Physiological Characteristicsmentioning

confidence: 98%

Willows Beyond Wetlands: Uses of Salix L. Species for Environmental Projects

Kuzovkina

Quigley

2005

Water Air Soil Pollut

229

142

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“…clones in rotation periods of up to fi ve years (e.g. Sirén et al 1987, Christersson et al 1993, Ledin 1996. However, in the last decade interest in other tree species for biofuel production has intensifi ed (Johansson 1992, Sonesson et al 1994, Telenius 1999, Rytter 2002.…”

Section: Introductionmentioning

confidence: 99%

Clonal variation in nutrient content in woody biomass of hybrid aspen (Populus tremula L. x P. tremuloides Michx.)

Rytter¹,

Stener²

2003

Silva Fenn.

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Differences in the nutrient concentrations and nutrient amounts of stems and branches amongst clones of hybrid aspen (Populus tremula L. × P. tremuloides Michx.) were investigated. Seven clones with superior and seven with medium growth rates were selected from a test of 119 clones in southern Sweden. Four trees per clone were randomly identifi ed and harvested in dormant conditions. Sample discs from the stems and branches were collected and analysed for N, K, P, Ca, Mg, and S concentrations, as well as wood density. The analyses revealed signifi cant genetic differences in wood density, K, P, and Mg concentrations in the stems. There were weak (non-signifi cant) and negative genetic correlations between stem volume and concentrations of all the nutrients, except potassium, suggesting that nutrient-effi cient clones could be selected without signifi cantly sacrifi cing genetic gain for growth. In the branches K, Ca, and Mg concentrations differed signifi cantly among clones. After selecting more nutrient effi cient clones, the potential savings of nutrients compared with current hybrid aspen material was estimated to be around 5%, which seems fairly low, at least in a short-term perspective. However, the use of clones with different nutrient storage strategies may be regarded as a possible way in the long run to save nutrients in hybrid aspen ecosystems, or of removing them when sludge is applied.

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“…The traditional use of willow as convenience wood and for basketry is declining in the USA and Western Europe, but the renewed interest in willows as an alternative crop for farmers (Makeschin 1999) and as a tool for landscaping and phytoremediation is currently causing a rapid expansion of willow breeding and cultivation. In Sweden, for instance, willow cultivation as a source of biomass for energy purposes has been developed by means of a National Energy Forestry Program (Sir& et al 1987, Christersson et al 1993 and expanded from only a few hectares around 1970 to about 17 000 ha in the year 2000. An increase to about 200 000 ha is envisaged during the next 15 years (Anon.…”

Section: Introductionmentioning

confidence: 99%

Willows: An underestimated resource for environment and society

Verwijst¹

2001

The Forestry Chronicle

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In a global perspective and compared to poplar cultivation, willow cultivation has been the stepchild of the employment of the Salicaceae. While willows are grown and used for a large number of different purposes in both the northern and southern hemispheres, willow growing traditionally has been carried out on a small scale. However, the number of species in the genus Salix exceeds the number of Populus species by one order of magnitude, and the geographical distribution and physiognomic range of willow species is larger than of poplars. Only recently has a start been made to exploit the large biological variation within the genus Salix by means of breeding and selection and by means of new planting and management schemes. During only one century, the major obstacles to the availability of forest products have been shifting from technical and economic limitations to ecological and environmental constraints. Due to its high potential of environmental assets, a rapid development of all aspects of willow cultivation is envisaged during the next decades. Willow growing offers a range of products, services and new environmental applications well beyond the range of those encountered in poplar growing. As willow and poplar are closely related genera, several of the lessons learned during the large-scale breeding and cultivation of poplars are relevant to the field of willow growing. These include logistics, mitigation of risk for pest and disease transfer, and especially the need to ensure a wide genetic variability, containing material suitable for different site conditions. Large-scale implementation of sustainable short rotation forestry can be achieved by means of further exploitation of willow in its potential position in between forestry and agriculture, as a recipient of surplus organic nutrients from unbanised and intensively used agricultural areas and as a buffer between productive land and water courses.Key words: breeding strategy, clones, coppice, implementation, International Poplar Commission, pathogens, phytoremediation, Salix, willow Dans une perspective globale et par comparaison B la culture du peuplier, la culture du saule a Ct C l'enfant pauvre de l'utilisation des SalicacCes. M&me si les saules sont cultives et utilisCs pour un trks grand nombre d'objectifs diffkrents tant dans l'htmisphkre nord que sud, la culture du saule a traditionnellement Ct C entreprise B petite Cchelle. Toutefois, le nombre d'espkces du genre Salix exckde le nombre d'espkces de Populus par un ordre de magnitude, et la distribution gCographique et la variabilitk physionomie des espkces de saules est plus importante que les peupliers. Ce n'est que rkcemment qu'a dkbutC l'exploitation de la grande variabilitk biologique au sein du genre Salix par voie de reproduction et de sklection et par voie de nouvelles plantations et de plans d'amknagement. Au cours de seulement un seul sikcle, les principaux obstacles h la disponibilit6 des produits forestien sont passes des limites techniques et 6conomiques B des contraintes Ccologiq...

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The role and significance of woody biomass plantations in Swedish agriculture

Cited by 61 publications

References 5 publications

Willows Beyond Wetlands: Uses of Salix L. Species for Environmental Projects

Willows Beyond Wetlands: Uses of Salix L. Species for Environmental Projects

Clonal variation in nutrient content in woody biomass of hybrid aspen (Populus tremula L. x P. tremuloides Michx.)

Willows: An underestimated resource for environment and society

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