| Literature DB >> 26232918 |
Hao Chen1, Dejun Li2, Geshere A Gurmesa3, Guirui Yu4, Linghao Li5, Wei Zhang6, Huajun Fang4, Jiangming Mo7.
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.Entities:
Keywords: Carbon cycle; China; Global change; Meta-analysis; N-rich and N-limited ecosystems; Nitrogen deposition
Mesh：
Substances：
Year: 2015 PMID： 26232918 DOI： 10.1016/j.envpol.2015.07.033
Source DB: PubMed Journal: Environ Pollut ISSN： 0269-7491 Impact factor: 8.071