Difference in Organic Carbon Contents and Distributions in Particle-size Fractions between Soil and Sediment on the Southern Loess Plateau, China
文献类型：期刊论文
| 作者 | LI Guang-lu ; PANG Xiao-ming |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2014-05 |
| 卷号 | 11期号:3页码:717-726 |
| 关键词 | Soil organic carbon Loess Plateau Enrichment ratio Water erosion Particle fraction |
| 通讯作者 | LI Guang-lu |
| 英文摘要 | The purpose of this study was to assess the effect of long-term cultivation and water erosion on the soil organic carbon (OC) in particle-size fractions. The study site is located at Nihegou Watershed in the Southern Loess Plateau, China. The soil at this site is loess with loose and silty structure, and contains macropores. The results showed that the OC concentrations in sediments and in the particle-size fractions of sediments were higher than those in soils and in the particle-size fractions of soils. The OC concentration was highest in the clay particles and was lowest in the sand particles. Clay particles possessed higher OC enrichment ability than silt and sand particles. The proportions of OC in the silt fractions of soil and sediment were the highest (mean value of 53.87% and 58.48%, respectively), and the total proportion of OC in the clay and silt fractions accounted for 96% and 98% of the total OC in the soil and sediment, respectively. The loss of OC was highest in silt particles, with an average value of 0.16 Mg ha-1 y-1, and was lowest in the sand (0.003 Mg ha-1 y-1). This result suggests that the fine particle-size fraction in the removed sediment may be an important indicator to assess soil OC losses. |
| 收录类别 | SCI |
| 公开日期 | 2014-05-06 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6900]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.3 |
| 推荐引用方式 GB/T 7714 | LI Guang-lu,PANG Xiao-ming. Difference in Organic Carbon Contents and Distributions in Particle-size Fractions between Soil and Sediment on the Southern Loess Plateau, China[J]. Journal of Mountain Science,2014,11(3):717-726. |
| APA | LI Guang-lu,&PANG Xiao-ming.(2014).Difference in Organic Carbon Contents and Distributions in Particle-size Fractions between Soil and Sediment on the Southern Loess Plateau, China.Journal of Mountain Science,11(3),717-726. |
| MLA | LI Guang-lu,et al."Difference in Organic Carbon Contents and Distributions in Particle-size Fractions between Soil and Sediment on the Southern Loess Plateau, China".Journal of Mountain Science 11.3(2014):717-726. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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