title: Effects of nitrogen deposition on carbon cycle in terrestrial ecosystems of China: A meta-analysis.
abstract: Nitrogen (N) deposition in China has increased greatly, but the general impact of elevated N deposition on carbon (C) dynamics in Chinese terrestrial ecosystems is not well documented. In this study we used a meta-analysis method to compile 88 studies on the effects of N deposition C cycling on Chinese terrestrial ecosystems. Our results showed that N addition did not change soil C pools but increased above-ground plant C pool. A large decrease in below-ground plant C pool was observed. Our result also showed that the impacts of N addition on ecosystem C dynamics depend on ecosystem type and rate of N addition. Overall, our findings suggest that 1) decreased below-ground plant C pool may limit long-term soil C sequestration; and 2) it is better to treat N-rich and N-limited ecosystems differently in modeling effects of N deposition on ecosystem C cycle.
authors.affiliation: Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; Huanjiang Observation and Research Station for Karst Ecosystem, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Chen
authors.affiliation: Huanjiang Observation and Research Station for Karst Ecosystem, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China.
authors.forename: Dejun
authors.initials: D
authors.lastname: Li
authors.affiliation: Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; Department of Geosciences and Natural Resource Management, University of Copenhagen, Rolighedsvej 23, DK-1958 Frederiksberg C, Denmark; Sino-Danish Center for Education and Research, Niels Jensens Vej 2, DK-8000 Aarhus C, Denmark.
authors.forename: Geshere A
authors.initials: GA
authors.lastname: Gurmesa
authors.affiliation: Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
authors.forename: Guirui
authors.initials: G
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Vegetation Environmental Change, Institute of Botany, Chinese Academy of Sciences, Xiangshan, Beijing 100093, China.
authors.forename: Linghao
authors.initials: L
authors.lastname: Li
authors.affiliation: Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
authors.forename: Huajun
authors.initials: H
authors.lastname: Fang
authors.affiliation: Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China. Electronic address: mojm@scib.ac.cn.
authors.forename: Jiangming
authors.initials: J
authors.lastname: Mo
mesh_terms: D002244:Carbon / Q000032:analysis*; D057486:Carbon Cycle; D057965:Carbon Sequestration; D002681:China; D017753:Ecosystem; D004784:Environmental Monitoring; D004787:Environmental Pollution / Q000032:analysis*; D065928:Forests; D008962:Models, Theoretical; D009584:Nitrogen / Q000032:analysis*; D058458:Nitrogen Cycle; D006109:Poaceae / Q000737:chemistry; D012987:Soil / Q000737:chemistry*; D014197:Trees / Q000737:chemistry
chemical_list: D012987:Soil; D002244:Carbon; D009584:Nitrogen
keywords: Carbon cycle; China; Global change; Meta-analysis; N-rich and N-limited ecosystems; Nitrogen deposition