期刊
CARBON BALANCE AND MANAGEMENT
卷 15, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s13021-020-0137-5
关键词
Soil carbon; Meta-analysis; Climate change; Human activities; Land use change; Agricultural management; Wetland; Carbon budgets
资金
- National Natural Science Foundation of China [41807049, 41920104008, 41571255]
- National Key Research and Development Program of China [2016YFC0501202]
- Key Research Project of Chinese Academy of Sciences [KFZD-SW-112]
- Jilin Province of China [2019SYHZ0039]
- Science and Technology Development Project of Jilin Province of China [20190303070SF, 20180519002JH, 20180520090JH]
- Science and Technology Development Project of Changchun of China [18DY019]
- CAS [2019SYHZ0039]
Soil carbon (C) plays a critical role in the global C cycle and has a profound effect on climate change. To obtain an in-depth and comprehensive understanding of global soil C changes and better manage soil C, all meta-analysis results published during 2001-2019 relative to soil C were collected and synthesized. The effects of 33 influencing factors on soil C were analyzed, compared and classified into 5 grades according to their effects on soil C. The effects of different categories of influencing factors, including land use change (LUC), management and climate change, on soil C and the underlying mechanism were compared and discussed. We propose that natural ecosystems have the capacity to buffer soil C changes and that increasing C inputs is one of the best measures to sequester C. Furthermore, a comparison between the meta-analyses and previous studies related to soil C based on bibliometric analysis suggested that studies on wetland soil C, soil C budgets and the effects of pollution and pesticides on soil C should be strengthened in future research.
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