农作物秸秆生物炭技术的经济、固碳和农业效益分析——以威海地区为例

The Benefit Analysis of Economy, Carbon Sequestration About Straw Biochar Technology: A Case in Weihai

农作物秸秆生物炭技术是一项新兴技术,本文以建设农作物秸秆生物炭生产企业为例,假设农作物均匀分布在生产企业周围,以盈亏平衡分析方法,通过农作物秸秆收购半径数学模型,计算威海地区农作物秸秆收购最优半径为36.3 km;在最优半径内建设农作物秸秆生物炭生产企业,当农作物秸秆面密度ρ为271.9 t/km^2时,生产企业经济效益约为6 000万,施入土壤后碳封存产生的固炭效益约为4 600万元,带来的农业效益约为1.85亿元。同时,提出政府作为环境责任主体,对固碳效益进行分配调节,有利于农作物秸秆生物炭技术的应用推广,实现节能减排、增产增收。

According to the parameters about the biochar price,straw purchase price,transportation costs and others,we calculated bythe mathematical model of the straw acquisition radius to obtain it when the straw acquisition radius is about 36.3 km,the economic benefit is the largest.The straw acquisition radius(36.3 km)is almost the same with the value in our main agricultural areas.As the research object about the straw of the wheat-corn-peanut rotation in two years,when straw areal density is 271.9 t/km^2 and the straw acquisition radius is 36.3 km,the biochar plant benefits about straw biochar sale,carbensequestration,and agricultural increaseproduction,60 respectively are million yuan,46 million yuan,185 million yuan.Simultaneously,we put forward the interests deploymentrecommendations between the government,business and farmers(farm)about the biochar plant benefits.