摘要：

Vast sources and huge amount of bio-wastes from agriculture and animal husbandry production and municipal disposal urge optimal treatment for biomass and nutrient recycling.Developing efficient and low energy-consuming biomass carbon industry would be a final solution of these bio-wastes and for producing carbonized products to reuse them in agriculture and to satisfy municipal energy demands in agriculture production and rural life.Recently,medium and small scale biomass carbon production systems have been formulated to carbonize bio-wastes from straw and municipal waste in rural areas and supply multiple products of energy gas and bio-char and soil ameliorator,bio-pesticides amended with bio-char and bio-fuel.In particular,a biomass carbon engineering plant in rural area can provide farmer with syngas,while producing bio-char for recycling in adjacent croplands with relative low capital input.Owing to the utilization of in-situ crop straw and reuse of bio-char as soil amendment,such an engineering plant serves greenhouse gas emission reduction by avoiding biomass burning in field and offsetting coal and electricity consumption,improving agro-production by saving N fertilizer and increasing yield and cleaning rural environment for proper fate of bio-wastes.It is proposed that biomass carbon engineering technology may act as a key tool for low carbon agriculture and recycled agriculture and enhance the capacity for climate change mitigation in agriculture.Build-up of such enterprise including production system,multiple carbon products production and optimal management system would be a bright prospect for biomass waste treatment both for domestic and international competition in the potential C trading framework in the future.

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