气候变化领域集成服务门户(CCPortal): Background nitrogen deposition controls the effects of experimental nitrogen addition on soil gross N transformations in forest ecosystems

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DOI	10.1007/s10533-020-00722-2
	Background nitrogen deposition controls the effects of experimental nitrogen addition on soil gross N transformations in forest ecosystems
	Cheng Y.; Wang J.; Ge Z.; Zhang J.; Cai Y.; Chang S.X.; Cai Z.; Chen H.Y.H.
发表日期	2020
ISSN	0168-2563
起始页码	335
结束页码	341
卷号	151 期号:2020-02-03
英文摘要	Nitrogen (N) deposition can profoundly alter soil N transformation processes and the long-term productivity of forest ecosystems. The response of soil gross N transformations to N deposition in forest ecosystems has been well studied through simulated N addition experiments. Simulated N addition experiments are conducted under a wide range of background N deposition rates. However, it remains unclear whether the response of soil gross N transformation rates to simulated N addition is dependent on background N deposition rates. Here, we collate results from the literature in forest ecosystems, and found, for the first time, that the responses of gross rates of N mineralization, nitrification, and NO3− immobilization to experimental N addition changed from positive to negative with increasing background N deposition rates with the thresholds for such changes were 3.23, 6.02, 1.90 kg N ha− 1 yr− 1, respectively. Our results suggest that background N deposition rates shall be incorporated into ecosystem models to better predict forest ecosystem N cycling under future N deposition scenarios. © 2020, Springer Nature Switzerland AG.
英文关键词	Background N deposition; Forest ecosystem; Gross N transformation rates; N addition; Thresholds
语种	英语
来源期刊	Biogeochemistry
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153087
作者单位	School of Geography, Nanjing Normal University, Nanjing, 210023, China; Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, 210023, China; Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, 210023, China; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Department of Renewable Resources, University of Alberta, 442 Earth Sciences Building, Edmonton, T6G 2E3, Canada; State Key Laboratory Cultivation Base of Geographical Environment Evolution, Nanjing, Jiangsu Province 210023, China; Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, Nanjing, 210023, China; Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Institute of Geographical Sciences, Fujian...
推荐引用方式 GB/T 7714	Cheng Y.,Wang J.,Ge Z.,et al. Background nitrogen deposition controls the effects of experimental nitrogen addition on soil gross N transformations in forest ecosystems[J],2020,151(2020-02-03).
APA	Cheng Y..,Wang J..,Ge Z..,Zhang J..,Cai Y..,...&Chen H.Y.H..(2020).Background nitrogen deposition controls the effects of experimental nitrogen addition on soil gross N transformations in forest ecosystems.Biogeochemistry,151(2020-02-03).
MLA	Cheng Y.,et al."Background nitrogen deposition controls the effects of experimental nitrogen addition on soil gross N transformations in forest ecosystems".Biogeochemistry 151.2020-02-03(2020).