Ambient nitrogen deposition drives plant-diversity decline by nitrogen accumulation in a closed grassland ecosystem

doi:10.1111/1365-2664.13858

	Ambient nitrogen deposition drives plant-diversity decline by nitrogen accumulation in a closed grassland ecosystem
	Lu, Peng ; Hao, Tianxiang 1; Li, Xin ; Wang, Hong 3; Zhai, Xiufeng ; Tian, Qiuying ; Bai, Wenming; Stevens, Carly 4; Zhang, Wen-Hao
	2021
发表期刊	JOURNAL OF APPLIED ECOLOGY
ISSN	0021-8901
卷号	58 期号:9 页码:1888-1898
摘要	Atmospheric nitrogen (N) deposition, climatic variables and anthropogenic management affect grassland-ecosystem stability by driving changes in plant community and loss of plant diversity. Determination of their influences on plant composition and diversity is essential for predicting ecosystem response to future global changes and for making policies of sustainable grassland management. We evaluated the relative contributions of atmospheric N deposition, climatic variables and grassland management to plant diversity and N accumulation by temporally monitoring the changes in plant community and N status in a temperate grassland ecosystem. Ambient low-level N deposition combined with long-term grassland enclosure led to increases in above-ground biomass and abundance of grasses and sedges, and decreases in those of forbs. The dominant species of perennial forbs and grasses also displayed divergence in their biomass and abundance over time. Nitrogen deposition made greater contributions to the divergent changes in perennial forbs and grasses. However, air temperature and precipitation fluctuations mainly contributed to the annual fluctuations in annual and biennial species. Long-term enclosure aggravated the cumulative effects of soil inorganic N on plant-diversity loss while mowing had opposite effects on the N accumulation. Synthesis and applications. Ambient low-level N deposition can drive loss of plant diversity due to N accumulation in grassland ecosystem under long-time enclosure. Therefore, appropriate grassland management, such as rationally grazing and/or mowing, may be effective practices in terms of maintenance of plant biodiversity under the scenario of enhanced atmospheric N deposition.
关键词	climatic change grassland management low-level nitrogen deposition nitrogen accumulation plant diversity soil pH temperate steppes
学科领域	Biodiversity Conservation ; Ecology
DOI	10.1111/1365-2664.13858
收录类别	SCI
语种	英语
WOS关键词	SPECIES RICHNESS ; CLIMATE-CHANGE ; GRAZING EXCLUSION ; RESOURCE CONTROL ; SOIL ; VEGETATION ; IMPACT ; BIODIVERSITY ; FERTILIZATION ; PRODUCTIVITY
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000662065300001
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-2664
资助机构	National Natural Science Foundation of China [31570403, 31870457, 31830011, 31272234]
作者邮箱	tianqiuying@ibcas.ac.cn ; whzhang@ibcas.ac.cn
引用统计	被引频次：12[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/2S10CLM1/26380
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 2.China Agr Univ, Coll Resources & Environm Sci, Minist Educ, Key Lab Plant Soil Interact, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing, Peoples R China 4.Agr Univ Hebei, Mt Area Res Inst, Baoding, Peoples R China 5.Univ Lancaster, Lancaster Environm Ctr, Lancaster, England 6.Chinese Acad Sci, Inner Mongolia Res Ctr Prataculture, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Lu, Peng,Hao, Tianxiang,Li, Xin,et al. Ambient nitrogen deposition drives plant-diversity decline by nitrogen accumulation in a closed grassland ecosystem[J]. JOURNAL OF APPLIED ECOLOGY,2021,58(9):1888-1898.
APA	Lu, Peng.,Hao, Tianxiang.,Li, Xin.,Wang, Hong.,Zhai, Xiufeng.,...&Zhang, Wen-Hao.(2021).Ambient nitrogen deposition drives plant-diversity decline by nitrogen accumulation in a closed grassland ecosystem.JOURNAL OF APPLIED ECOLOGY,58(9),1888-1898.
MLA	Lu, Peng,et al."Ambient nitrogen deposition drives plant-diversity decline by nitrogen accumulation in a closed grassland ecosystem".JOURNAL OF APPLIED ECOLOGY 58.9(2021):1888-1898.

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