Effects of nitrogen deposition on carbon cycle in terrestrial ecosystems of China: A meta-analysis

被引：98
|
作者：
Chen, Hao [1 ,2 ]
Li, Dejun [2 ]
Gurmesa, Geshere A. [1 ,4 ,6 ]
Yu, Guirui [3 ]
Li, Linghao [5 ]
Zhang, Wei [1 ]
Fang, Huajun [3 ]
Mo, Jiangming [1 ]
机构：
[1] Chinese Acad Sci, South China Bot Garden, Key Lab Vegetat Restorat & Management Degraded Ec, Guangzhou 510650, Guangdong, Peoples R China
[2] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Huanjiang Observat & Res Stn Karst Ecosyst, Changsha 410125, Hunan, Peoples R China
[3] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
[4] Univ Copenhagen, Dept Geosci & Nat Resource Management, DK-1958 Frederiksberg C, Denmark
[5] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat Environm Change, Beijing 100093, Peoples R China
[6] Sinodanish Ctr Educ & Res, DK-8000 Aarhus C, Denmark
来源：
ENVIRONMENTAL POLLUTION | 2015年 / 206卷
基金：
中国国家自然科学基金;
关键词：
Nitrogen deposition; Carbon cycle; Global change; N-rich and N-limited ecosystems; Meta-analysis; China; SIMULATED N DEPOSITION; SOIL RESPIRATION; INORGANIC NITROGEN; FOREST ECOSYSTEMS; TROPICAL FOREST; GROWTH; STORAGE; IMPACT; CO2; DECOMPOSITION;
D O I：
10.1016/j.envpol.2015.07.033
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：352 / 360
页数：9
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