Elevated ozone decreases the multifunctionality of belowground ecosystems

doi:10.1111/gcb.16507

	Elevated ozone decreases the multifunctionality of belowground ecosystems
	Gu, Xian 1; Wang, Tianzuo ; Li, Caihong
	2023
发表期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
卷号	29 期号:3 页码:890-908
摘要	Elevated tropospheric ozone (O-3) affects the allocation of biomass aboveground and belowground and influences terrestrial ecosystem functions. However, how belowground functions respond to elevated O-3 concentrations ([O-3]) remains unclear at the global scale. Here, we conducted a detailed synthesis of belowground functioning responses to elevated [O-3] by performing a meta-analysis of 2395 paired observations from 222 publications. We found that elevated [O-3] significantly reduced the primary productivity of roots by 19.8%, 16.3%, and 26.9% for crops, trees and grasses, respectively. Elevated [O-3] strongly decreased the root/shoot ratio by 11.3% for crops and by 4.9% for trees, which indicated that roots were highly sensitive to O-3. Elevated [O-3] impacted carbon and nitrogen cycling in croplands, as evidenced by decreased dissolved organic carbon, microbial biomass carbon, total soil nitrogen, ammonium nitrogen, microbial biomass nitrogen, and nitrification rates in association with increased nitrate nitrogen and denitrification rates. Elevated [O-3] significantly decreased fungal phospholipid fatty acids in croplands, which suggested that O-3 altered the microbial community and composition. The responses of belowground functions to elevated [O-3] were modified by experimental methods, root environments, and additional global change factors. Therefore, these factors should be considered to avoid the underestimation or overestimation of the impacts of elevated [O-3] on belowground functioning. The significant negative relationships between O-3-treated intensity and the multifunctionality index for croplands, forests, and grasslands implied that elevated [O-3] decreases belowground ecosystem multifunctionality.
关键词	meta-analysis multifunctionality ozone pollution roots soil microbes
学科领域	Biodiversity Conservation ; Ecology ; Environmental Sciences
DOI	10.1111/gcb.16507
收录类别	SCI
语种	英语
WOS关键词	SOIL MICROBIAL COMMUNITY ; BEECH FAGUS-SYLVATICA ; TRITICUM-AESTIVUM L. ; SCOTS PINE-SEEDLINGS ; LEAF GAS-EXCHANGE ; ATMOSPHERIC CARBON-DIOXIDE ; YANGTZE-RIVER DELTA ; SPRUCE PICEA-ABIES ; QUERCUS-RUBRA L ; TROPOSPHERIC OZONE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000879604400001
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-2486
资助机构	National Natural Science Foundation of China [31830011, 31400335, 32070351] ; Scientific Research Project of the Natural Science Foundation of Hebei Province of China [H2022423004]
作者邮箱	licaihong023@126.com
引用统计	被引频次：7[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/2S10CLM1/29124
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 100093, Peoples R China 2.Hebei Univ Chinese Med, Coll Pharm, Shijiazhuang, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Gu, Xian,Wang, Tianzuo,Li, Caihong. Elevated ozone decreases the multifunctionality of belowground ecosystems[J]. GLOBAL CHANGE BIOLOGY,2023,29(3):890-908.
APA	Gu, Xian,Wang, Tianzuo,&Li, Caihong.(2023).Elevated ozone decreases the multifunctionality of belowground ecosystems.GLOBAL CHANGE BIOLOGY,29(3),890-908.
MLA	Gu, Xian,et al."Elevated ozone decreases the multifunctionality of belowground ecosystems".GLOBAL CHANGE BIOLOGY 29.3(2023):890-908.

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