文献类型：期刊文献

英文题名：Life cycle assessment of liquid digestate application strategies for rice agri-food chain in "Zero-waste City"

作者：Yu, Lina[1,3];Qiao, Xiuchen[4];Duan, Huabo[5];Zhang, Zhe[1];Gong, Liying[6];Li, Xiaonv[7];Lu, Jiaxin[2];Li, Xuefeng[3]

机构：[1]Solid Waste & Chem Management Ctr, Minist Ecol & Environm Peoples Republ China, Beijing 100029, Peoples R China;[2]Beijing Technol & Business Univ, Sch Ecol & Environm, Beijing 100048, Peoples R China;[3]China Agr Univ, Coll Sci, Beijing 100093, Peoples R China;[4]East China Univ Sci & Technol, Sch Resource & Environm Engn, Shanghai 200237, Peoples R China;[5]Shenzhen Univ, Sch Civil Engn, Shenzhen 518061, Peoples R China;[6]Agr & Rural Bur Guangze Cty, Fujian 354100, Peoples R China;[7]Nanping Guangze Ecol Environm Bur, Fujian 354100, Peoples R China

年份：2022

卷号：12

期号：10

起止页码：4389

外文期刊名：BIOMASS CONVERSION AND BIOREFINERY

收录：;EI(收录号：20221111784401);WOS:【SCI-EXPANDED(收录号:WOS:000767914300003)】；

基金：This work was supported by the Research Foundation for Youth Scholars of Beijing Technology and Business University (QNJJ2021-31).

语种：英文

外文关键词：Life cycle assessment; Liquid digestate application; Rice; Field operation; Zero-waste City

摘要：Maximizing the productivity of arable land, providing high-quality food, and reducing negative environmental impacts are paramount importance to the agricultural sector. This study used the life cycle assessment (LCA) method to assess the environmental impacts of liquid digestate application and quantitative fertilizer application on the agri-food chain in a rice production system in Guangze County, Fujian Province, China (one of "Zero-waste City" pilots). Results showed that the 100-year global warming potential (GWP100) was reduced by 60%, 49%, and 35% by replacing chemical fertilizer application with 25%, 50%, and 100% of digestate application, respectively. In general, the 25% digestate replacement scenario was the most favorable alternative in terms of GWP100, acidification potential (AP), eutrophication potential (EP), marine aquatic ecotoxicity potential (MAETP), and abiotic depletion, fossil (ADP-fossil) with a 1.52-fold, 67%, 55%, 43%, and 1.63-fold decrease compared to the current status. The application amount of nitrogen fertilizer was reduced by 75%, and applying the remaining 25% nitrogen in liquid digestion mode had a good positive effect on guaranteeing the high yield and quality of rice. The results can provide a basis for promoting the application of liquid digestate in rice-planting system and the recycling development mechanism of rice agri-food chain system in "Zero-waste City".