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

doi:10.1007/s11104-020-04787-8

	Litter addition and understory removal influenced soil organic carbon quality and mineral nitrogen supply in a subtropical plantation forest
	Fang, Xiang-Min 2,3; Wang, G. Geoff 4; Xu, Zhi-Jun 2,3; Zong, Ying-Ying 2; Zhang, Xiu-Lan 2; Li, Jian-Jun 2,3; Wang, Huimin 1; Chen, Fu-Sheng 2,3,5
刊名	PLANT AND SOIL
	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
DOI	10.1007/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
出版者	SPRINGER
WOS记录号	WOS:000608962200002
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
内容类型	期刊论文
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.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Stn, Beijing 100101, Peoples R China 2.Jiangxi Agr Univ, Coll Forestry, Key Lab Natl Forestry & Grassland Adm Forest Ecos, Nanchang 330045, Jiangxi, Peoples R China 3.Jiangxi Agr Univ, Coll Forestry, Jiangxi Prov Key Lab Silviculture, Nanchang 330045, Jiangxi, Peoples R China 4.Clemson Univ, Dept Forestry & Environm Conservat, Clemson, SC 29634 USA 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.