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Below-ground net primary productivity stability in response to a nitrogen addition gradient in an alpine meadow

文献类型：期刊论文

作者Ma, Fangfang1; Chen, Weinan1,3; Wang, Jinsong1; Tian, Dashuan1; Zhou, Qingping2; Niu, Shuli1,3
刊名FUNCTIONAL ECOLOGY
出版日期2022-12-02
页码12
关键词dominant species stability soil acidification soil depth species asynchrony species richness
ISSN号0269-8463
DOI10.1111/1365-2435.14236
通讯作者Niu, Shuli(sniu@igsnrr.ac.cn)
英文摘要Temporal stability of ecosystem productivity is important for providing reliable ecosystem services under global changes. Great efforts have been made to explore the response of above-ground net primary productivity (ANPP) stability to nitrogen (N) enrichment, yet how it affects below-ground net primary productivity (BNPP) stability remains elusive, which hinders a comprehensive understanding of ecosystem stability from the view of a whole system. Here, using a field manipulative experiment with six N addition rates (0, 2, 4, 8, 16, 32 g N m(-2) year(-1)), we explored the response patterns and drivers of BNPP stability in the topsoil (0-20 cm) and subsoil (20-40 cm) in the alpine meadow. The results showed that BNPP stability at both soil depths showed a unimodal response to increasing N addition rates. Specifically, for both the topsoil and subsoil, low-level N addition significantly promoted BNPP stability, while high doses of N addition had no significant impact on BNPP stability, suggesting that current low level of N deposition likely benefits the stable provision of below-ground functioning. Furthermore, dominant species stability and species richness contributed most to the changes in BNPP stability in the topsoil, whereas only dominant species stability was the dominant driver of BNPP stability in the subsoil. This study is among the first to illuminate the main mechanisms underlying the responses of BNPP stability to N enrichment at various soil depths, which will advance our current understanding of N addition effects on below-ground processes and benefit the sustainable provision of ecosystem functioning in the context of atmospheric N deposition. Read the free Plain Language Summary for this article on the Journal blog.
WOS关键词ECOSYSTEM STABILITY ; SPECIES ASYNCHRONY ; PLANT ; BIODIVERSITY ; DEPOSITION ; DIVERSITY ; DYNAMICS ; VARIABILITY ; GRASSLANDS ; IMPACT
资助项目National Natural Science Foundation of China[31988102] ; National Natural Science Foundation of China[32101283] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0302]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000916681300001
出版者WILEY
资助机构National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program
源URL[http://ir.igsnrr.ac.cn/handle/311030/189823]  
专题中国科学院地理科学与资源研究所
通讯作者Niu, Shuli
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
2.Southwest Univ Nationalities, Inst Qinghai Tibetan Plateau, Chengdu, Peoples R China
3.Univ Chinese Acad Sci, Dept Resources & Environm, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Fangfang,Chen, Weinan,Wang, Jinsong,et al. Below-ground net primary productivity stability in response to a nitrogen addition gradient in an alpine meadow[J]. FUNCTIONAL ECOLOGY,2022:12.
APA Ma, Fangfang,Chen, Weinan,Wang, Jinsong,Tian, Dashuan,Zhou, Qingping,&Niu, Shuli.(2022).Below-ground net primary productivity stability in response to a nitrogen addition gradient in an alpine meadow.FUNCTIONAL ECOLOGY,12.
MLA Ma, Fangfang,et al."Below-ground net primary productivity stability in response to a nitrogen addition gradient in an alpine meadow".FUNCTIONAL ECOLOGY (2022):12.

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来源：地理科学与资源研究所

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