W. Liu et al., ESTIMATING SHORT-ROTATION EUCALYPTUS-SALIGNA PRODUCTION IN HAWAII - AN INTEGRATED YIELD AND ECONOMIC-MODEL, Bioresource technology, 45(3), 1993, pp. 167-176
Citations number
35
Categorie Soggetti
Energy & Fuels","Biothechnology & Applied Migrobiology",Agriculture
Growth data of Eucalyptus saligna from plantation experiments in Hawai
i and South Africa were analyzed to determined relationships between y
ield and soil, climatic, and management variables. Detailed investigat
ions were made of growing space, fertilization, and site conditions on
tree diameter. The independent variables used were growth age, planti
ng density, nitrogen fertilizer application, temperature, rainfall and
solar radiation, soil nitrogen content and pH value, and site elevati
on. The regression equation developed was used to estimate E. saligna
yield of various short-rotation strategies and site-specific climate a
nd soil conditions. By coupling these site-specific results with a geo
graphical information system, yield was then predicted at all location
s on the island of Kauai identified as available for biomass plantatio
ns. The estimated total land area available and potential biomass are
presented. Establishment costs for E. saligna plantations on Kauai ran
ged from US $1207/ha to US $1655/ha for different planting densities a
nd amounts of fertilizer applied.