Advances in Resources and Environmental Science

This article takes agricultural and forestry solid waste as the basic material and proposes the construction of an ecological cycle theoretical system based on carbon sink for biomass energy, electricity, chemical engineering, carbon capture, environmental protection, soil carbon fixation, plant carbon fixation, and biomass energy. The mechanism and basis for constructing this theory are explained, and various chemical and new fertilizer products such as soil conditioner, liquid ammonia, ammonium bicarbonate, and multi-element long-term granular composite nitrogen fertilizer can be co produced, It can significantly reduce greenhouse gas emissions, eliminate environmental pollution and damage caused by sulfur and nitrogen oxides, and achieve resource recycling of carbon dioxide, sulfur oxides, and nitrogen oxides; The products of co production can be widely used in agriculture, forestry and grass industry, improve the output and quality of agricultural products, increase carbon sinks, and achieve significant economic, social and ecological benefits. It is of great practical significance to promote the comprehensive utilization of agricultural and forestry waste resources, and achieve the goal of carbon peak and carbon neutrality.

Energy; Greenhouse effect; Carbon neutrality; Carbon sink; Compound nitrogen fertilizer; Ecological cycle; Theoretical system