Stable Carbon Isotopic Composition in Soil Organic Carbon and C3/C4 Source Variations at the Haibei Alpine Meadow
文献类型：期刊论文
| 作者 | Yi Xianfeng |
| 刊名 | 西北植物学报
 |
| 出版日期 | 2005 |
| 卷号 | 25期号:2页码:336-342 |
| 关键词 | δ13C C3/C4 source alpine meadow |
| 合作状况 | 国内 |
| 中文摘要 | stable carbon isotopes of organic matter originated from different soil layers (0～5 cm, 5～15 cm, 15～25 cm, 25～35 cm, 35～50 cm, 50～65 cm) were investigated in the haibei alpine meadow ecosystem research station of the chinese academy of sciences. the preliminary results indicated that δ13c values of soil organic matter increased with increased soil depth. δ13c of soil organic carbon in 0～5 cm layer showed the lowest value, -25.09‰; while 50～65 cm soil layer possessed the lowerδ13c value, -13.87‰. based on mass balance model of stable isotopes, it was proposed that the percentage of c4 carbon source tend to increase with increased soil depth. the preliminary study indicated that alpine meadow might have undergone a successive process from c4-dominated community to c3-dominated one. however, changing δ13c values in atmospheric co2 overtime and different processes of soil organic carbon formation (or eluviation) might somewhat contribute to increasing δ13c values. in this case, mass balance model would underestimate c3 community and overestimate c4 community. |
| 学科主题 | 植物学 |
| 收录类别 | CSCD |
| 语种 | 英语 |
| CSCD记录号 | CSCD:1921136 |
| 公开日期 | 2009-11-20 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/533]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Yi Xianfeng. Stable Carbon Isotopic Composition in Soil Organic Carbon and C3/C4 Source Variations at the Haibei Alpine Meadow[J]. 西北植物学报,2005,25(2):336-342. |
| APA | Yi Xianfeng.(2005).Stable Carbon Isotopic Composition in Soil Organic Carbon and C3/C4 Source Variations at the Haibei Alpine Meadow.西北植物学报,25(2),336-342. |
| MLA | Yi Xianfeng."Stable Carbon Isotopic Composition in Soil Organic Carbon and C3/C4 Source Variations at the Haibei Alpine Meadow".西北植物学报 25.2(2005):336-342. |
入库方式： OAI收割
来源：西北高原生物研究所
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