Plant C and N Pools Improved by N Addition Levels but Not Frequencies in a Typical Grassland of Northern China

doi:10.3390/atmos13060851

	Plant C and N Pools Improved by N Addition Levels but Not Frequencies in a Typical Grassland of Northern China
	Hao, Jie 1; Sun, Jianping 2,3; Dong, Kuanhu 1; Wang, Changhui 1,2
	2022
发表期刊	ATMOSPHERE
卷号	13 期号:6
摘要	The pools of plant community carbon (C) and nitrogen (N) are important sources of soil organic matter in terrestrial ecosystems and directly affect soil C and N cycling. A large amount of studies were manipulated with multiple N levels on soil C and N pools. However, how and whether the frequency of N addition can affect the plant C and N pools is still unclear. In order to comprehensively understand the N addition effects (including frequencies and levels) on C and N pools of the plant community, we executed a randomized complete block experiment with the addition of five levels of N, including 0, 2, 10, 20 and 50 g N m(-2) yr(-1) (designated as N-0, N-2, N-10, N-20 and N-50) and two N addition frequencies (twice a year vs. monthly, F-2, F-12) in August of 2008. After 5 years of treatment, the physical-chemical properties of the plants and soil were measured in 2013. The results indicated that with increasing N addition levels, the C and N pools of the plant community significantly increased, while N addition frequency had no significant effects. Moreover, significant interactions between N addition levels and the frequencies on the C and N pools of the plant community were also found in this typical grassland. Under different frequencies of N addition treatment, the plant community C and N pools showed different response patterns along with N addition levels in plants aboveground and belowground, respectively. Under different frequencies of N addition, the changes in the C and N pools of the plant community caused by N addition were regulated by different environmental factors. We highlight that long-term N deposition could affect the plant community C and N pools and would influence C and N cycling of terrestrial ecosystems based on global climate change in the future.
关键词	carbon storage nitrogen enrichment nitrogen storage typical grassland
学科领域	Environmental Sciences ; Meteorology & Atmospheric Sciences
DOI	10.3390/atmos13060851
收录类别	SCI
语种	英语
WOS关键词	NITROGEN ADDITION ; ECOSYSTEM STABILITY ; BIOMASS ALLOCATION ; RESPONSES ; SOIL ; CARBON ; STOICHIOMETRY ; LIMITATION ; ENRICHMENT ; DEPOSITION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000815884300001
出版者	MDPI
文献子类	Article
出版地	BASEL
EISSN	2073-4433
资助机构	National Natural Science Foundation of China [31872406] ; High Level Talents Project of Shanxi Agricultural University [2021XG008] ; Shanxi Key Laboratory Project [202104010910017] ; Research projects of Shanxi Province's doctoral graduates and postdoctoral researchers working in Shanxi Province [SXBYKY2021053]
作者邮箱	b20191057@stu.sxau.edu.cn ; jpsun@itpcas.ac.cn ; dongkuanhu@sxau.edu.cn ; changhui.wang@sxau.edu.cn
作品OA属性	gold
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28864
专题	植被与环境变化国家重点实验室
作者单位	1.Shanxi Agr Univ, Coll Grassland Sci, Jinzhong 030801, Peoples R China 2.Shanxi Key Lab Grassland Ecol Protect & Nat Grass, Jinzhong 030801, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Hao, Jie,Sun, Jianping,Dong, Kuanhu,et al. Plant C and N Pools Improved by N Addition Levels but Not Frequencies in a Typical Grassland of Northern China[J]. ATMOSPHERE,2022,13(6).
APA	Hao, Jie,Sun, Jianping,Dong, Kuanhu,&Wang, Changhui.(2022).Plant C and N Pools Improved by N Addition Levels but Not Frequencies in a Typical Grassland of Northern China.ATMOSPHERE,13(6).
MLA	Hao, Jie,et al."Plant C and N Pools Improved by N Addition Levels but Not Frequencies in a Typical Grassland of Northern China".ATMOSPHERE 13.6(2022).

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