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Litter addition and understory removal influenced soil organic carbon quality and mineral nitrogen supply in a subtropical plantation forest

文献类型：期刊论文

作者Fang, Xiang-Min1,2; Wang, G. Geoff3; Xu, Zhi-Jun1,2; Zong, Ying-Ying1; Zhang, Xiu-Lan1; Li, Jian-Jun1,2; Wang, Huimin4; Chen, Fu-Sheng1,2,5
刊名PLANT AND SOIL
出版日期2021-01-19
页码14
关键词Litterfall and understory manipulation delta C-13 Particle-size fractions SOC quality N mineralization
ISSN号0032-079X
DOI10.1007/s11104-020-04787-8
通讯作者Chen, Fu-Sheng(chenfush@yahoo.com)
英文摘要Aims Aboveground litter inputs have been modified by global changes in plantation forests, where understory management is also prevalent, which may alter soil fertility and stand productivity. This study aimed to quantify the specific roles of litter and understory in affecting soil carbon (C) and nitrogen (N) dynamics. Methods A field experiment was established with four treatments, namely, litter addition (LA), understory removal (UR), litter addition and understory removal (LA + UR), and a control, in a subtropical Cunninghamia lanceolata plantation. Topsoil delta C-13, organic C concentration, storage and decomposition, mineral N, N mineralization, and C and N hydrolase activities were analyzed. Results Litter addition significantly increased soil organic C, macro-particulate organic C (macro-POC) and mineral N at a 0-5 cm depth, but decreased delta C-13(macro-POC) at 0-5 cm and 5-10 cm depths. Understory removal significantly increased soil NH4+-N, the rates of nitrification and net N mineralization as well as the soil organic C respiration rate at the two depths, while it decreased the C storage in bulk soil, especially in mineral protected pools. The activities of beta-glucosidase and beta-N-acetylglucosaminidase increased with litter addition and understory removal, respectively. Conclusions Litter addition tends to improve soil C quantity and quality due to fresh organic C inputs, while understory removal helps increase the N supply via the acceleration of N mineralization and the absence of understory plant uptake.
资助项目National Natural Science Foundation of China[31760200] ; National Natural Science Foundation of China[31870427] ; Science and Technology Project of Jiangxi Provincial Department of Education[GJJ190173] ; Research Project of Jiangxi Provincial Department of Forestry[201806] ; Jiangxi Provincal Double Thousand Plan of Scientific and Technological Innovation for Youths[jxsq2019201080]
WOS研究方向Agriculture ; Plant Sciences
语种英语
WOS记录号WOS:000608962200002
出版者SPRINGER
资助机构National Natural Science Foundation of China ; Science and Technology Project of Jiangxi Provincial Department of Education ; Research Project of Jiangxi Provincial Department of Forestry ; Jiangxi Provincal Double Thousand Plan of Scientific and Technological Innovation for Youths
源URL[http://ir.igsnrr.ac.cn/handle/311030/136190]  
专题中国科学院地理科学与资源研究所
通讯作者Chen, Fu-Sheng
作者单位1.Jiangxi Agr Univ, Coll Forestry, Key Lab Natl Forestry & Grassland Adm Forest Ecos, Nanchang 330045, Jiangxi, Peoples R China
2.Jiangxi Agr Univ, Coll Forestry, Jiangxi Prov Key Lab Silviculture, Nanchang 330045, Jiangxi, Peoples R China
3.Clemson Univ, Dept Forestry & Environm Conservat, Clemson, SC 29634 USA
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Stn, Beijing 100101, Peoples R China
5.Econ & Technol Dev Zone, 1101 Zhiminda Rd, Nanchang 330045, Jiangxi, Peoples R China
推荐引用方式
GB/T 7714		 Fang, Xiang-Min,Wang, G. Geoff,Xu, Zhi-Jun,et al. Litter addition and understory removal influenced soil organic carbon quality and mineral nitrogen supply in a subtropical plantation forest[J]. PLANT AND SOIL,2021:14.
APA Fang, Xiang-Min.,Wang, G. Geoff.,Xu, Zhi-Jun.,Zong, Ying-Ying.,Zhang, Xiu-Lan.,...&Chen, Fu-Sheng.(2021).Litter addition and understory removal influenced soil organic carbon quality and mineral nitrogen supply in a subtropical plantation forest.PLANT AND SOIL,14.
MLA Fang, Xiang-Min,et al."Litter addition and understory removal influenced soil organic carbon quality and mineral nitrogen supply in a subtropical plantation forest".PLANT AND SOIL (2021):14.

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来源：地理科学与资源研究所

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