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Novel perspective on qualitative assessment of swine manure compost maturity using organic carbon density fractions

文献类型：期刊论文

作者Hou, Jia-yi4,5; Liu, Hong-tao3,5; Wang, Li-xia2; Zhang, Zu-lin1
刊名BIORESOURCE TECHNOLOGY
出版日期2024-03-01
卷号395页码:7
ISSN号0960-8524
关键词Maturity evaluation Composting Organic carbon transformation Density classification
DOI10.1016/j.biortech.2024.130386
通讯作者Liu, Hong-tao(liuht@igsnrr.ac.cn) ; Wang, Li-xia(lxwang@iga.ac.cn)
英文摘要Mature compost is safe and stable, yet quality assessments are challenging owing to current maturity indicators' limitations. This study employed density fractionation to separate organic carbon into light and heavy fractions, offering a new perspective for assessing maturity. Results showed that light fraction organic carbon progressively transitioned into heavy fraction during composting, reducing the proportion of total organic carbon from 82.82% to 44.03%, while heavy fraction organic carbon increased to 48.58%. During the first seven days, the reduction rate of light fraction organic carbon decreased slowly, while the increase rate of heavy fraction declined sharply, levelling off thereafter. Light/heavy fraction organic carbon ratio was significantly correlated with existing maturity indicators (carbon/nitrogen ratio, humic acid/fulvic acid ratio, biological growth -related indicators), with the ratio below 1.33 serving as a potential compost maturity marker. Thus, given its simplicity and reliability, organic carbon density fractions is an innovative indicator for compost maturity assessments.
WOS关键词PHYTOTOXICITY ; PARAMETERS ; SPECIATION ; STABILITY ; DYNAMICS ; INDEXES ; SOIL
资助项目National Natural Science Foundation of China[52270143] ; Key R & D Program of Shandong Province, China[2020CXGC010804] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA23050103] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA28130300]
WOS研究方向Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:001175603400001
资助机构National Natural Science Foundation of China ; Key R & D Program of Shandong Province, China ; Strategic Priority Research Program of Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/203185]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Hong-tao; Wang, Li-xia
作者单位1.James Hutton Inst, Aberdeen AB15 8QH, Scotland
2.Chinese Acad Sci, Northeast Inst Geog & Agroecol, State Key Lab Black Soils Conservat & Utilizat, Changchun 130102, Peoples R China
3.Chinese Acad Sci, Engn Lab Yellow River Delta Modern Agr, Beijing 100101, Peoples R China
4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Hou, Jia-yi,Liu, Hong-tao,Wang, Li-xia,et al. Novel perspective on qualitative assessment of swine manure compost maturity using organic carbon density fractions[J]. BIORESOURCE TECHNOLOGY,2024,395:7.
APA Hou, Jia-yi,Liu, Hong-tao,Wang, Li-xia,&Zhang, Zu-lin.(2024).Novel perspective on qualitative assessment of swine manure compost maturity using organic carbon density fractions.BIORESOURCE TECHNOLOGY,395,7.
MLA Hou, Jia-yi,et al."Novel perspective on qualitative assessment of swine manure compost maturity using organic carbon density fractions".BIORESOURCE TECHNOLOGY 395(2024):7.

入库方式： OAI收割

来源：地理科学与资源研究所

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