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Dynamics of soil microbial metabolic activity during grassland succession after farmland abandonment

文献类型：期刊论文

作者Li, Jiwei1,3; Shangguan, Zhouping1,2,3; Deng, Lei1,2,3
刊名GEODERMA
出版日期2020-04-01
卷号363页码:9
关键词Secondary succession Farmland abandonment Microbial metabolic Metabolic quotient Litter biomass Fungi
ISSN号0016-7061
DOI10.1016/j.geoderma.2019.114167
通讯作者Deng, Lei(leideng@ms.iswc.ac.cn)
英文摘要Secondary succession has a major influence on vegetation and soil biogeochemical processes, however, the dynamics of microbial metabolic activity and the driving factors during grassland succession after farmland abandonment remain unclear. Therefore, we examined variations in microbial biomass carbon (Cmic), soil basal respiration (BR), microbial quotient (Cmic:Corg), and metabolic quotient (qCO(2)) in sloping farmlands that had been abandoned for 0, 3, 8, 13, 18, 23 and 30 years on the Loess Plateau in China. Moreover, the plant, soil and microbial properties were determined to reveal the forces driving soil microbial metabolic activity. The results showed that compared to those of farmland, the Cmic significantly increased by 104.7% and 168.0%, while the qCO(2) significantly decreased by 54.3% and 70.5%, respectively, in the late succession stages (23 and 30 years). Long-term succession (30 years) significantly enhanced the Cmic:Corg by 51.4%. In contrast, except for a decrease at 8 years, the BR changed little during grassland succession following farmland abandonment. These changes in microbial metabolic activity indicators were associated with shifts in litter biomass, soil organic carbon, available nitrogen, and soil fungi. Litter biomass and fungi were strongly affected the changes in microbial metabolic activity. This study provided new information regarding the dynamics of microbial metabolic activity during long-term secondary succession and enhanced our understanding of the linkages among plant, soil and microorganisms in semiarid ecosystems.
WOS关键词BACTERIAL COMMUNITY DYNAMICS ; ORGANIC-CARBON ; LOESS PLATEAU ; VEGETATION SUCCESSION ; EXTRACTION METHOD ; ENZYME-ACTIVITIES ; SECONDARY SUCCESSION ; LITTER DECOMPOSITION ; NATURAL VEGETATION ; TILLAGE PRACTICES
资助项目National Natural Science Foundation of China[41730638] ; National Natural Science Foundation of China[41877538] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23070201] ; Funding of Special Support Plan of Young Talents Project of Shaanxi Province in China ; Funding of Promoting Plan to Creative Talents of Youth Science and Technology Star in Shaanxi Province of China[2018KJXX-088]
WOS研究方向Agriculture
语种英语
WOS记录号WOS:000515198500027
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Funding of Special Support Plan of Young Talents Project of Shaanxi Province in China ; Funding of Promoting Plan to Creative Talents of Youth Science and Technology Star in Shaanxi Province of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/132822]  
专题中国科学院地理科学与资源研究所
通讯作者Deng, Lei
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Li, Jiwei,Shangguan, Zhouping,Deng, Lei. Dynamics of soil microbial metabolic activity during grassland succession after farmland abandonment[J]. GEODERMA,2020,363:9.
APA Li, Jiwei,Shangguan, Zhouping,&Deng, Lei.(2020).Dynamics of soil microbial metabolic activity during grassland succession after farmland abandonment.GEODERMA,363,9.
MLA Li, Jiwei,et al."Dynamics of soil microbial metabolic activity during grassland succession after farmland abandonment".GEODERMA 363(2020):9.

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来源：地理科学与资源研究所

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