Biomass functions and nutrient contents of European beech, oak, sycamore maple and ash and their meaning for the biomass supply chain
| Autor: | Kai Husmann, Jürgen Nagel, Sabine Rumpf |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
040101 forestry
010504 meteorology & atmospheric sciences biology Renewable Energy Sustainability and the Environment Agroforestry Strategy and Management Diameter at breast height Biomass 04 agricultural and veterinary sciences 15. Life on land Raw material biology.organism_classification 01 natural sciences Industrial and Manufacturing Engineering Tree (data structure) Nutrient Deciduous Agronomy Bark (sound) 0401 agriculture forestry and fisheries Beech 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Journal of Cleaner Production. 172:4044-4056 |
| ISSN: | 0959-6526 |
| Popis: | Woody biomass from forests has great potential to provide a continuous and largely carbon-neutral raw material supply for the biobased industry. As the demand for forestry products is already very high and steadily increasing, the question arises how to match the limited available wood resources to the growing demand for raw materials. Thus, there is an initial need to properly estimate the available biomass from forests. The success of a bio-based industry depends on an accurate forecast of the raw material flow coming from the forests for the entire biomass supply chain up to the industrial processing stage. Using easily measured input data, e. g. the tree diameter at breast height, biomass functions allow for a reliable prediction of tree species- and tree fraction-specific single-tree biomasses. In combination with nutrient content data, the site specific ecologically sustainable level of forestry use can be assessed and the site-specific wood utilisation potential can be fully exploited. Biomass functions for the main tree species can be found in the literature. For other tree species, like sycamore or ash, however, there are only very specific studies available. As the wood potential of especially those species is recently often unused, goal of this study is to develop biomass functions and nutrient contents for European beech, oak, ash and sycamore for the fractions stem wood, bark, branches, and twigs. For this purpose 139 trees were destructively sampled. Their single tree biomasses and nutrient contents were examined. This data was then used in a regression analysis to build generalised tree species- and tree fraction-specific biomass functions and nutrient contents for northern and central Germany. We showed that the sycamore and ash biomass functions differed significantly from those of European beech and oak. Using oak biomass functions for the biomass estimation of sycamore and ash, as it is practised today, leads to a massive overestimation of the standing biomass in a test site up to 11% (21 tons/ha respectively). The share of species-rich broadleaf forest stands, and thereby the importance of tree specific biomass functions, is increasing. The introduced models can help to exploit the huge biomass potential of those deciduous stands. |
| Databáze: | OpenAIRE |
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