耕地“非粮化”对农田生态系统碳足迹影响研究  

Study on the Impact of Farmland"Non grain"on the Carbon Footprint of Farmland Ecosystem

作　　者：李亚博 范胜龙 Li Yabo;Fan Shenglong(School of Public Administration,Fujian Agriculture and Forestry University,Fuzhou Fujian 350000,China)

机构地区：[1]福建农林大学公共管理学院,福建福州350000

出　　处：《国土与自然资源研究》2024年第4期39-45,共7页Territory & Natural Resources Study

基　　金：国家自然科学基金“面向膳食需求转型的南方山区耕地果树‘非粮化’扩张机制与适宜性管控研究”(4220010909)。

摘　　要：基于双碳发展背景研究耕地“非粮化”驱使下的农田生态碳足迹变化,可为建设低碳农业提供参考依据。利用福建省2000-2020年农业相关统计数据,基于生命周期评价法估算碳源、利用作物产量估算碳汇,计算各年份农田生态系统碳足迹,结合耕地“非粮化”趋势分析两者的相关性,并提出建设低碳农田生态系统的优化策略。结果表明,碳足迹提高与粮作比例降低高度吻合,VAR结果表明粮作比例和农田生态系统碳足迹存在统计学上显著的因果关系,且粮作比例的提升会减少农田生态系统碳足迹。政府部门应设立精准补贴政策,完善落实自身耕保责任制,制度与低碳技术融合,推动农田生态系统的低碳发展。Based on the background of double carbon development,the study on the ecological carbon footprint change of farmland driven by“non-food”can provide a reference for the construction of low-carbon agriculture.Based on the agricultural statistics of Fujian Province from 2000 to 2020,carbon sources were estimated based on life cycle assessment method,and carbon sinks were estimated using crop yield.The carbon footprint of farmland ecosystem in each year was calculated.The corelation between the two was analyzed combined with the trend of“non-food”of cultivated land,and the optimization strategy of constructing lowcarbon farmland ecosystem was proposed.The results showed that the increase of carbon footprint was highly consistent with the decrease of grain ratio.VAR results showed that there was a statistically significant causal relationship between the proportion of grain used and the carbon footprint of farmland ecosystem,and the increase of the proportion of grain used would reduce the carbon footprint of farmland ecosystem.Government departments should perfect and implement their own farming and protection responsibility system by establishing precise subsidy policies,and integrate the system with low-carbon technology to realize the green development of farmland ecosystem.

关 键 词：非粮化 碳足迹 VAR 福建省 LCA 

分 类 号：X171.1[环境科学与工程—环境科学] S158[农业科学—土壤学]