Search for dissertations about: "Birger Hjelm"
Found 2 swedish dissertations containing the words Birger Hjelm.
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1. Empirical models for estimating volume and biomass of poplars on farmland in Sweden
Abstract : There is growing interest in establishing short-rotation poplar plantations in Sweden, primarily as a future feedstock for bioenergy. Cost-efficient planning and effective management of these plantations would be greatly facilitated by robust equations for estimating the taper, volume and height of poplar trees, and the biomass of poplar stumps and roots. READ MORE
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2. Taper and volume equations for poplar trees growing on farmland in Sweden
Abstract : Effective management of poplar plantations for high yield production would be facilitated by the availability of improved equations for predicting the taper and volume of poplar stems. Therefore, this thesis is based upon a polynomial stem taper equation and two volume equations constructed for individual poplar trees growing on farmland. READ MORE