Soil Total Organic Carbon, 513C Values and Their Responses to the Soil Core Transferring Experiment from High-to Low-elevation Forestalong Natural Altitudinal Transect of Old Temperate Volcanic Forest Soils

摘要：

In this study, the responses of soil organic carbon and 5I3C values to soil warming were conducted by relocating intact soil cores from high- to lowelevation forests for one year along a natural altitudinal transect in the northern slope of Changbai Mountain. As expected, the soil-core relocation caused significant increase in soil temperature but made no significant effect on soil moisture. The results showed that after one year incubation, soil relocation significantly decreased TOC contents, and 513C decreased. Pearson correlation analysis demonstrates that TOC content was negatively related to soil temperature but positively related to soil moisture. After one-year simulated warming experiment. SI3C values in bulk soils reduced by 0.4S ％o. Furthermore, the decreases in the size fractions <63 urn were larger than those in the size fractions 63-1000μm.

关键词： Soil-core relocation experiment Old temperate volcanic forest soils Soil organic carbon species δ13C Soil particle-size fractions

作者: Xinyu Zhang Xianjing Meng Jinjuan Fan Lupeng Gao Xiaomin Sun

作者单位: Key Laboratory of licosystem Network Observation and Modeling,Institute oj Geographic Sciences and N Key Laboratory of licosystem Network Observation and Modeling,Institute oj Geographic Sciences and N Shenyang Agricultural University,Shenyang 11016,China Key Laboratory of licosystem Network Observation and Modeling,Institute oj Geographic Sciences and N

会议类型: 国际会议

会议名称: The Workshop on the Low-carbon Industry and Multi-scale Input-output Modeling with the International Congress on Environmental Modelling and Software(低碳与多尺度对环境模拟国际大会)

会议地点: 北京

会议语种:英文

页码: 139-144

在线出版日期: 2011-09-01（万方平台首次上网日期，不代表论文的发表时间）