Removing too much crop waste for bioenergy could come at a cost to biodiversity, study finds
Crop residues—the stems, leaves and husks left behind after harvesting cereals—could provide an important source of renewable energy for Europe, but research led by the University of Surrey suggests that removing too much from fields could come at a cost to biodiversity.
研究给出量化阈值:谷物残茬田间留存率不低于70%的区域生物多样性更高,且留存率比产量更能预测多样性,为秸秆能源化收集强度设定参考边界。