作者: M Nocetti , G Bertini , G Fabbio , G Tabacchi
关键词: Tree allometry 、 Forestry 、 Tree (data structure) 、 Logging 、 Biomass (ecology) 、 Coppicing 、 Forest inventory 、 Mathematics 、 Diameter at breast height 、 Quercus cerris
摘要: Abstract: The paper reports the development of allometric equations to estimate tree phytomass in Turkey oak stands Tuscany. Biomass estimation is a basic tool study ecosystem, which currently taking on greater importance due commitments provided by Climate Convention and Kyoto Protocol. high costs field measurements biomass calls for application indirect methods, such as largely-applied equations, allowing calculate values using variables easily measurable field, diameter height. described here have been developed coppices undergoing conversion into forests. Such are nowadays more common because progressive suspension timber harvesting an increased part original coppice area. We report five equations: first one stem volume, followings each component (stem, branches, slash) total above-ground phytomass. Tree at breast height were used independent (predictors). All same model additivity components respect was achieved. Equation parameters showed fairly good accuracy dependent variables.