Effects of thinning on nitrogen status of a larch plantation, illustrated by N-15 natural abundance and N resorption

doi:10.1080/02827581.2017.1391956

IMR OpenIR

	Effects of thinning on nitrogen status of a larch plantation, illustrated by N-15 natural abundance and N resorption
	Yan, Tao 1,2,3; Zhu, Jiaojun 1,2; Fang, Yunting 1; Yang, Kai 1,2; Li, Mingcai 1,2
通讯作者	Zhu, Jiaojun(jiaojunzhu@iae.ac.cn)
	2018
发表期刊	SCANDINAVIAN JOURNAL OF FOREST RESEARCH
ISSN	0282-7581
卷号	33 期号:4 页码:357-364
摘要	Larch (Larix spp.) is widely distributed in the boreal and temperate areas. Nitrogen (N) is considered as the major limiting element for these areas. Thinning is a common forest management practice. Thus, it is imperative to obtain a better understanding on how thinning could affect N status of larch plantations, and thus optimize the thinning intensity for sustainable forest management. In this study, we measured N concentrations and N-15 natural abundance (delta N-15) of needles and surface soil (0-10 cm) in a larch plantation with T0, T25 and T50 treatments (0%, 25% and 50% thinning intensities, respectively) in Northeast China. We found that needle and soil delta N-15 in T25 was the lowest, and the highest in T50. No significant differences were observed for needle and soil N concentrations among the thinning intensities. T25 exhibited the highest N resorption efficiency, indicating highest N use efficiency. Overall, N cycling in T25 was more closed than the control, and with lower soil N availability, while N cycling in T50 was more opened. Our study indicates that foliar N-15 natural abundance is sensitive to thinning and can be potentially used to optimize thinning intensity from the perspective of N cycling.
关键词	Larix spp thinning nitrogen cycling N-15 natural abundance plant-soil interaction
资助者	National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China
DOI	10.1080/02827581.2017.1391956
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China (973 Program)[2012CB416906] ; National Natural Science Foundation of China[41371511]
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:000430429100006
出版者	TAYLOR & FRANCIS AS
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/127704
专题	中国科学院金属研究所
通讯作者	Zhu, Jiaojun
作者单位	1.Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang, Liaoning, Peoples R China 2.Chinese Acad Sci, Qingyuan Forest CERN, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yan, Tao,Zhu, Jiaojun,Fang, Yunting,et al. Effects of thinning on nitrogen status of a larch plantation, illustrated by N-15 natural abundance and N resorption[J]. SCANDINAVIAN JOURNAL OF FOREST RESEARCH,2018,33(4):357-364.
APA	Yan, Tao,Zhu, Jiaojun,Fang, Yunting,Yang, Kai,&Li, Mingcai.(2018).Effects of thinning on nitrogen status of a larch plantation, illustrated by N-15 natural abundance and N resorption.SCANDINAVIAN JOURNAL OF FOREST RESEARCH,33(4),357-364.
MLA	Yan, Tao,et al."Effects of thinning on nitrogen status of a larch plantation, illustrated by N-15 natural abundance and N resorption".SCANDINAVIAN JOURNAL OF FOREST RESEARCH 33.4(2018):357-364.