Production potential of Eucalypt woodlots for bioenergy in the Winelands region of the Western Cape

摘要: Thesis (MScFor (Forest and Wood Science)) – University of Stellenbosch, 2010.%%%%ENGLISH ABSTRACT: The purpose the study was to investigate potential tree taxa that could be grown as a source biomass in Cape Winelands region. trials comprises two different aspects. first being estimation potential volume, density pair six year-old stands E. gomphocephala E. cladocalyx families at climatically sites within second part early growth assessment alternative could be planted region compared to regional mainstay cladocalyx. The volume estimated using appropriate equations and form height were none available. best yield varied from 4.6 11.2 m3 ha-1a-1, dry sub-humid sites, respectively. density, non-destructive samples both sites, varied 620 (sub-humid) 588 kg m-3 (dry site). estimated biomass production rate top producing yielded 2.7 6.9 t ha -1a -1 sites, respectively. In terms survival, gomphocephala more suited site, while displayed superior yield than on the sub-humid site, but not significantly so. Early growth assessment trial found hybrid E. grandis × camldulensis urophylla had biomass indices, susceptible infestation by Thaumastocoris peregrinus Gonipterus scuttelatus.%%%%AFRIKAANSE OPSOMMING: Die doel van hierdie studie om potensiele boom taksa vir gebruik ’n bron biomassa die Kaapse Wynlandstreek te ondersoek. proewe behels twee aspekte: eerstens beraming volume, digtheid en sesjaaroue opstande met klimatologies verskillende groeiplekke studiegebied; tweedens beoordeling vroee groei alternatiewe wat streek geplant kan word vergelyking met se historiese staatmaker-spesie cladocalyx. Die is beraam deur maak toepaslike volumevergelykings, behulp ’n vormfaktor waar vergelykings nie beskikbaar nie. aanwas droe sub-humiede groeiplekke onderskeidelik ha-1j-1. Houtdigtheid beraam deur nie-destruktiewe monsters uit opstand neem. Gemiddelde digthede het varieer (sub-humied) tot (droe groeiplek). Die beraamde biomassaproduksie top-families beloop onderskeidelik 2.7 ha -1j sub-humiede groeiplekke. terme van beraamde oorlewing, meer geskik vir droer groeiplekke , terwyl groeiplek hoer opbrengs getoon het, hoewel nie betekenisvol nie. Beramings van…