Spatial variability of soil carbon, nitrogen, and phosphorus content and storage in an alpine wetland in the Qinghai-Tibet Plateau, China
文献类型：SCI/SSCI论文
| 作者 | Bai J. H. ; Ouyang H. ; Xiao R. ; Gao J. Q. ; Gao H. F. ; Cui B. S. ; Huang L. B. |
| 发表日期 | 2010 |
| 关键词 | drainage peat soils Qinghai-Tibet plateau soil organic carbon spatial variability total nitrogen total phosphorous fresh-water wetlands organic-carbon northeast china land-use marsh soils dynamics sequestration matter impacts climate |
| 英文摘要 | This study considers the spatial variability of soil organic carbon, nitrogen, and phosphorus storage in a drained alpine wetland and the possible relationships with soil properties. Top 0-0.30 m soil samples were collected in a typical alpine wetland in the south-eastern Qinghai-Tibet plateau using grid sampling. There was high spatial variability for soil organic carbon density (SOCD), soil total nitrogen density (STND), and soil total phosphorous density (STPD) in the drained alpine wetland. Spherical models best described the structure of the semivariograms for SOCD and STPD, and an exponential model for STND, with the range parameter of <4 m. Similar spatial distribution with lower or higher patches of C, N, and P storage were observed. SOCD, STND, and STPD were significantly negatively correlated with soil moisture (P<0.01), and significantly positively correlated with bulk density (P<0.01). However, no significant correlations were observed between SOCD, STND, and STPD and soil pH values. Wetland drainage might lead to higher C, N, and P densities in top 0.30 m soils due to peat compaction; thus, it is necessary to incorporate water table fluctuations or the whole depth of peat layers to estimating precisely C, N and P storage. |
| 出处 | Australian Journal of Soil Research |
| 卷 | 48 |
| 期 | 8 |
| 页 | 730-736 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0004-9573 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24310]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Bai J. H.,Ouyang H.,Xiao R.,et al. Spatial variability of soil carbon, nitrogen, and phosphorus content and storage in an alpine wetland in the Qinghai-Tibet Plateau, China. 2010. |
入库方式： OAI收割
来源：地理科学与资源研究所
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