SongPengZhouEtAl2014
Référence
Song, X., Peng, C., Zhou, G., Jiang, H. and Wang, W. (2014) Chinese Grain for Green Program led to highly increased soil organic carbon levels: A meta-analysis. Scientific Reports, 4(4460). (Scopus 
)
Résumé
The Grain for Green Program (GGP), initiated in 1999, is the largest ecological restoration project in central and western China. Here, for the first time, we performed a meta-analysis and found that the GGP largely increased the soil organic carbon (SOC). The SOC was increased by 48.1%, 25.4%, and 25.5% at soil depths of 0-20cm, 20-40cm, and 40-60cm, respectively. Moreover, this carbon accumulation has significantly increased over time since GGP implementation. The carbon accumulation showed a significantly more active response to the GGP in the top 20cm of soil than in the deeper soil layers. Conversion of cropland to forest could lead to significantly greater SOC accumulation than would the conversion of cropland to grassland. Conversion from cropland to woodland could lead to greater SOC accumulation than would the conversion to either shrubland or orchard. Our results suggest that the GGP implementation caused SOC to accumulate and that there remains a large potential for further accumulation of carbon in the soil, which will help to mitigate climate change in the near future.
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@ARTICLE { SongPengZhouEtAl2014,
AUTHOR = { Song, X. and Peng, C. and Zhou, G. and Jiang, H. and Wang, W. },
TITLE = { Chinese Grain for Green Program led to highly increased soil organic carbon levels: A meta-analysis },
JOURNAL = { Scientific Reports },
YEAR = { 2014 },
VOLUME = { 4 },
NUMBER = { 4460 },
NOTE = { cited By (since 1996)0 },
ABSTRACT = { The Grain for Green Program (GGP), initiated in 1999, is the largest ecological restoration project in central and western China. Here, for the first time, we performed a meta-analysis and found that the GGP largely increased the soil organic carbon (SOC). The SOC was increased by 48.1%, 25.4%, and 25.5% at soil depths of 0-20cm, 20-40cm, and 40-60cm, respectively. Moreover, this carbon accumulation has significantly increased over time since GGP implementation. The carbon accumulation showed a significantly more active response to the GGP in the top 20cm of soil than in the deeper soil layers. Conversion of cropland to forest could lead to significantly greater SOC accumulation than would the conversion of cropland to grassland. Conversion from cropland to woodland could lead to greater SOC accumulation than would the conversion to either shrubland or orchard. Our results suggest that the GGP implementation caused SOC to accumulate and that there remains a large potential for further accumulation of carbon in the soil, which will help to mitigate climate change in the near future. },
ART_NUMBER = { 4460 },
DOCUMENT_TYPE = { Article },
DOI = { 10.1038/srep04460 },
ISSN = { 20452322 },
SOURCE = { Scopus },
URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84897440548&partnerID=40&md5=dfc8f2d8ed657a2c58369008612be02b },
}
