Towards a sustainable biomass strategy : what we know and what we should know

摘要: The paper reviews the current knowledge on use of biomass for non-food purposes, critically discusses its environmental sustainability implications, and describes needs further research, thus enabling a more balanced policy approach. life-cylce wide impacts energy material purposes derived from either direct crop harvest or residuals indicate that based substitutes have different, not always superior performance than comparable fossil products. Cascading use, i.e. when is used products first content recovered end-of-life products, tends to provide higher benefit primary as fuel. Due limited global land resources, may only substitute certain share non-renewables. If demand biomass, especially fuel crops derivates, continues grow this will inevitably lead an expansion arable at expense natural ecosystems such savannas tropical rain forests. Whereas aspirations incentives increase are intended counteract climate change degradation, they bound high risk problem shifting even deterioration environment. Although "balanced approach" European Union's strategy be deemed good principle, concrete targets implementation measures in Union countries like Germany should revisited. Likewise, Brazil Indonesia revisit their strategies resources export domestic purposes. Further research needed optimize within between regions.