气候变化领域集成服务门户(CCPortal): Changes in above-/below-ground biodiversity and plant functional composition mediate soil respiration response to nitrogen input

CCPortal

DOI	10.1111/1365-2435.13783
	Changes in above-/below-ground biodiversity and plant functional composition mediate soil respiration response to nitrogen input
	Zhang, Dianye; Peng, Yunfeng; Li, Fei; Yang, Guibiao; Wang, Jun; Yu, Jianchun; Zhou, Guoying; Yang, Yuanhe
通讯作者	Yang, YH (通讯作者)，Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China. ; Yang, YH (通讯作者)，Univ Chinese Acad Sci, Beijing, Peoples R China.
发表日期	2021
ISSN	0269-8463
EISSN	1365-2435
起始页码	1171
结束页码	1182
卷号	35 期号:5
英文摘要	1. Biodiversity loss and changes in plant community composition induced by anthropogenic nitrogen (N) deposition exert profound effects on ecosystem functions. However, limited studies have considered the joint effects of plant community composition, plant species richness, plant functional diversity and soil biodiversity on the dynamics of soil autotrophic and heterotrophic respiration under extra N input. 2. We addressed this issue by conducting a multilevel N-manipulation experiment in a Tibetan alpine steppe. Based on soil respiration observations as well as biotic and abiotic measurements under this N addition experiment, we quantified the relative and interactive effects of above-/below-ground biodiversity, plant community composition and other explanatory variables (environmental factors, plant and microbial properties) on autotrophic and heterotrophic respiration. 3. Our results showed that the effects of N enrichment via plant productivity, root amount, the proportion of sedge biomass and plant functional diversity explained 71% of the N-induced variations in autotrophic respiration. With regard to heterotrophic respiration, the combination of N addition, soil pH, plant functional diversity and soil biota diversity accounted for 78% of its variations along the N addition gradient. Further analyses showed that above-/below-ground diversity loss and changes in plant community composition explained similar variation to that contributed by other factors in both autotrophic and heterotrophic respiration. The declined plant functional diversity and the increased proportion of sedge biomass promoted autotrophic respiration. Conversely, the loss of soil biodiversity together with the decreased plant functional diversity led to the decline of heterotrophic respiration along the experimental N gradient. 4. Our results highlight that the indirect regulation of N input on ecosystem function through changes in plant community composition and above-/below-ground biodiversity loss should be considered for better understanding the responses of terrestrial ecosystems to atmospheric N deposition.
英文关键词	autotrophic respiration; heterotrophic respiration; nitrogen enrichment; plant community composition; plant functional diversity; soil biodiversity
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:000628171700001
来源期刊	FUNCTIONAL ECOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254937
作者单位	[Zhang, Dianye; Peng, Yunfeng; Li, Fei; Yang, Guibiao; Wang, Jun; Yu, Jianchun; Yang, Yuanhe] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China; [Zhang, Dianye; Peng, Yunfeng; Li, Fei; Yang, Guibiao; Wang, Jun; Yu, Jianchun; Yang, Yuanhe] Univ Chinese Acad Sci, Beijing, Peoples R China; [Zhou, Guoying] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Tibetan Med Res, Xining, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Dianye,Peng, Yunfeng,Li, Fei,et al. Changes in above-/below-ground biodiversity and plant functional composition mediate soil respiration response to nitrogen input[J]. 中国科学院西北生态环境资源研究院,2021,35(5).
APA	Zhang, Dianye.,Peng, Yunfeng.,Li, Fei.,Yang, Guibiao.,Wang, Jun.,...&Yang, Yuanhe.(2021).Changes in above-/below-ground biodiversity and plant functional composition mediate soil respiration response to nitrogen input.FUNCTIONAL ECOLOGY,35(5).
MLA	Zhang, Dianye,et al."Changes in above-/below-ground biodiversity and plant functional composition mediate soil respiration response to nitrogen input".FUNCTIONAL ECOLOGY 35.5(2021).