Stable Carbon Isotope (13C) Composition Differences in Soil Organic Carbon Contribution and Turnover in Artificial Forest
Soil organic carbon (SOC) is the most active and important part in the soil carbon pool. It changes with the land use types. As an effective way, it has been considered to play an important role in sequestrating more CO2 into soil carbon pool to restrain greenhouse effect by converting tillage to forest. To explore SOC change in artificial forest, carbon isotope composite on (13C) was employed to investigate SOC contribution and turnover in an 8 years old artificial forest in west of Sichuan Basin in our experiment. Our results indicated that the SOc of whole soil body and particle soil fraction is increase with soil depth, and the latter is lower in the same layer. On the other hand, we found that the δ13C of SOC was lower in forests than tillage in the same layers, which might be caused by different turnover rate of SOC. Our results suggested that the SOC was losing in the first years of converting tillage to forest.
Soli organic carbon Stable carbon isotopes (13C) Turnover
WU Yong LI Xianwei ZHANG Jian
Province Key Laboratory of Ecological Forestry Engineering, Sichuan Agricultural University, Yaan, Province Key Laboratory of Ecological Forestry Engineering, Sichuan Agricultural University, Yaan,
国际会议
2009 Geology Resource Management and Sustainable Development(2009 地质资源管理与可持续发展国际学术会议)
庐山
英文
186-190
2009-10-24（万方平台首次上网日期，不代表论文的发表时间）