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Dynamics of litter decomposition rate and soil organic carbon sequestration following vegetation succession on the Loess Plateau, China

文献类型：期刊论文

作者Liu, Yulin2,3,4,5,6; Wang, Kaibo1; Dong, Lingbo6; Li, Jiwei6; Wang, Xiaozhen6; Shangguan, Zhouping2,3,4,5,6; Qu, Bodong6; Deng, Lei2,3,4,5,6,7
刊名CATENA
出版日期2023-08-01
卷号229页码:9
ISSN号0341-8162
关键词Carbon sequestration Forest succession Litter decomposition rate Litter quality Soil carbon turnover Vegetation restoration
DOI10.1016/j.catena.2023.107225
通讯作者Deng, Lei(leideng@ms.iswc.ac.cn)
英文摘要Litter quality determines the decomposability of litter and the proportion of recalcitrant residues, which in turn can affect the accumulation of soil organic carbon (SOC). However, the impact of litter decomposition on SOC turnover following vegetation succession has not been systematically studied. To clarify the dynamics and mechanisms of litter decomposition and SOC sequestration following vegetation succession, this study conducted a decomposition experiment across four successional stages: grassland (similar to 30 years), shrubland (similar to 60 years), pioneer forest (similar to 110 years), and climax forest (similar to 160 years). This study also analyzed the litter quality and the SOC turnover rate. The results showed that litter decomposition rates gradually decreased with vegetation succession. Litter lignin content (LC), and nitrogen content (LN) were the major factors controlling the change of litter decomposition rate. Litter with a high LC: LN ratio and lignin: LN ratio exhibited a lower decomposition rate, whereas the opposite was found for litter with a higher LN content. The increase in the SOC content mainly occurred in the early successional stage (<110 years), with a higher litter decomposition rate and SOC turnover rate. At the later stage (>= 110 years), the SOC was close to saturation, together with low rates of litter decomposition and SOC turnover. The variation trend of the mineral-associated organic carbon (MAOC) content was the same as that of the SOC content, resulting from continuous litter inputs. Based on the above results, litter inputs can significantly increase the SOC content in the early successional stage, and soil carbon sequestrations gradually reach saturation in the late successional stage. The findings of this study strengthen our understanding of the changes in litter decomposition and its contribution to SOC sequestration following vegetation succession.
WOS关键词HOME-FIELD ADVANTAGE ; LAND-USE ; TEMPERATURE SENSITIVITY ; LIGNIN DEGRADATION ; MASS-LOSS ; FORESTS ; AVAILABILITY ; DIVERSITY ; CHEMISTRY ; QUALITY
资助项目National Natural ScienceFoundation of China[42277471] ; National Natural ScienceFoundation of China[42177339] ; National Natural ScienceFoundation of China[41877538] ; Scientific and Technological Innovation Project of Shaanxi Forestry Academy of Sciences[SXLK2021-0206] ; Key Research and Development Pro-gram of Shaanxi Province[2021ZDLSF05-02] ; Funding of Special Support Plan of Young Talents Project of National Forestry and Grass-land Administration in China[20201326015] ; Tang Scholar of Northwest AF University
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
出版者ELSEVIER
WOS记录号WOS:001001926900001
资助机构National Natural ScienceFoundation of China ; Scientific and Technological Innovation Project of Shaanxi Forestry Academy of Sciences ; Key Research and Development Pro-gram of Shaanxi Province ; Funding of Special Support Plan of Young Talents Project of National Forestry and Grass-land Administration in China ; Tang Scholar of Northwest AF University
源URL[http://ir.igsnrr.ac.cn/handle/311030/194869]  
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.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
2.Chinese Acad Sci, Res Ctr Soil & Water Conservat & Ecol Environm, Yangling 712100, Shaanxi, Peoples R China
3.Minist Educ, Yangling 712100, Shaanxi, Peoples R China
4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
7.26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yulin,Wang, Kaibo,Dong, Lingbo,et al. Dynamics of litter decomposition rate and soil organic carbon sequestration following vegetation succession on the Loess Plateau, China[J]. CATENA,2023,229:9.
APA Liu, Yulin.,Wang, Kaibo.,Dong, Lingbo.,Li, Jiwei.,Wang, Xiaozhen.,...&Deng, Lei.(2023).Dynamics of litter decomposition rate and soil organic carbon sequestration following vegetation succession on the Loess Plateau, China.CATENA,229,9.
MLA Liu, Yulin,et al."Dynamics of litter decomposition rate and soil organic carbon sequestration following vegetation succession on the Loess Plateau, China".CATENA 229(2023):9.

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来源：地理科学与资源研究所

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