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DOI	10.1016/j.foreco.2019.06.020
	Differential response of soil respiration to nitrogen and phosphorus addition in a highly phosphorus-limited subtropical forest, China
	Liu H.; Zhou G.; Bai S.H.; Song J.; Shang Y.; He M.; Wang X.; Zheng Z.
发表日期	2019
ISSN	0378-1127
起始页码	499
结束页码	508
卷号	448
英文摘要	Understanding feedback between terrestrial carbon (C) cycle and climate change is linked to the effects of nitrogen (N) and phosphorus (P) on soil respiration (Rs). However, the individual and interactive effects of N and P additions on soil respiration and its components (autotrophic [Ra] and heterotrophic respiration [Rh]) are not fully understood, especially in highly P limited subtropical forests. In this study, both field experiment and laboratory incubation (at 15 °C and 25 °C temperatures) were undertaken to examine the effects of N, P and N + P additions on Rs and Rh. Our results showed that N addition significantly increased Rs by 21.09%, but P and N + P additions exhibited no effects on Rs under field conditions. Under laboratory condition, N addition significantly suppressed Rh whereas P and N + P additions increased Rh compared with control. Meanwhile, N and P additions exhibited an antagonistic interaction on Rs, but N and P additions synergistically affected Rh under laboratory incubations at both incubation temperatures of 15 °C and 25 °C. Cumulative Rh was negatively correlated with fine root biomass, but was positively correlated with microbial biomass carbon regardless of incubation temperatures. Our findings indicated that both individual and interactive effects of N and P additions on Rs and Rh were required to be considered to improve prediction of N and P effects on forest C dynamics in the highly P limited subtropical forests. © 2019 Elsevier B.V.
英文关键词	C sequestration; Fine root biomass; Microbial biomass carbon; Microbial respiration; Subtropical forests
语种	英语
scopus关键词	Biomass; Carbon; Climate change; Nitrogen; Phosphorus; Soils; Tropics; C sequestration; Fine-root biomass; Microbial biomass carbon; Microbial respiration; Subtropical forests; Forestry; biomass; carbon sequestration; fine root; microbial activity; phosphorus; respiration; soil nitrogen; soil respiration; subtropical region; tropical forest; Biomass; Carbon; Forestry; Nitrogen; Phosphorus; Tropics; China
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155866
作者单位	Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University200241, China; Center for Global Change and Ecological Forecasting, East China Normal University, Shanghai, 200062, China; Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD 4558, Australia; School of Health, Medical and Applied Sciences, Central Queensland University, Bundaberg, Queensland 4670, Australia
推荐引用方式 GB/T 7714	Liu H.,Zhou G.,Bai S.H.,et al. Differential response of soil respiration to nitrogen and phosphorus addition in a highly phosphorus-limited subtropical forest, China[J],2019,448.
APA	Liu H..,Zhou G..,Bai S.H..,Song J..,Shang Y..,...&Zheng Z..(2019).Differential response of soil respiration to nitrogen and phosphorus addition in a highly phosphorus-limited subtropical forest, China.Forest Ecology and Management,448.
MLA	Liu H.,et al."Differential response of soil respiration to nitrogen and phosphorus addition in a highly phosphorus-limited subtropical forest, China".Forest Ecology and Management 448(2019).