Biomass 281 biomass 205 Forestry 56 cellulose 52 biofuel 50 Lignin 43 Lignocellulosic biomass 42 Cellulose 39 Biofuels 37 Crops 37 Ecosystems 37 lignin 37 China 36 Saccharification 32 Article 29 Carbon 29 Ecology 29 Plants (botany) 27 Soils 27 aboveground biomass 27 Climate change 26 enzyme activity 26 nonhuman 26 hydrolysis 25 Enzymatic hydrolysis 23 Ethanol 23 Greenhouse gases 23 bioenergy 23 biomass power 23 fermentation 23