The effect of decreasing permafrost stability on ecosystem carbon in the northeastern margin of the Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Liu, Wenjie1,2; Chen, Shengyun2; Liang, Junyi3,4; Qin, Xiang2; Kang, Shichang2; Ren, Jiawen2; Qin, Dahe2 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2018-03-08 |
| 卷号 | 8页码:10 |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-018-22468-6 |
| 通讯作者 | Chen, Shengyun(sychen@lzb.ac.cn) |
| 英文摘要 | The objective of this study is to investigate the effect of decreased permafrost stability on carbon storage of the alpine ecosystems in the northeastern margin of the Qinghai-Tibet Plateau. During July and August 2013, we selected 18 sites in five types of permafrost (stable, substable, transitional, unstable, and extremely unstable) regions. We measured aboveground phytomass carbon (APC) and soil respiration (SR), soil inorganic carbon (SIC), soil organic carbon (SOC), belowground phytomass carbon, and soil properties down to 50 cm at same types of soils and grasslands. The results indicated that ecosystem carbon in cold calcic soils first decreased and then increased as the permafrost stability declined. Overall, decreasing permafrost stability was expected to reduce ecosystem carbon in meadows, but it was not obvious in swamp meadows and steppes. APC decreased significantly, but SIC and SOC in steppes first decreased and then increased with declining permafrost stability. Soil clay fraction and soil moisture were the controls for site variations of ecosystem carbon. The spatial variations in SR were possibly controlled by soil moisture and precipitation. This meant that alpine ecosystems carbon reduction was strongly affected by permafrost degradation in meadows, but the effects were complex in swamp meadows and steppes. |
| 收录类别 | SCI |
| WOS关键词 | SOIL ORGANIC-CARBON ; CLIMATE-CHANGE ; ACTIVE-LAYER ; ALPINE GRASSLANDS ; LAND DEGRADATION ; ALKALINE SOILS ; CHINA ; RESPIRATION ; VEGETATION ; IMPACTS |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000426825900007 |
| 出版者 | NATURE PUBLISHING GROUP |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558130 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Chen, Shengyun |
| 作者单位 | 1.Hainan Univ, Inst Trop Agr & Forestry, Haikou 570228, Hainan, Peoples R China 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Qilian Shan Stn Glaciol & Ecol Environm, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China 3.Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA 4.Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA |
| 推荐引用方式 GB/T 7714 | Liu, Wenjie,Chen, Shengyun,Liang, Junyi,et al. The effect of decreasing permafrost stability on ecosystem carbon in the northeastern margin of the Qinghai-Tibet Plateau[J]. SCIENTIFIC REPORTS,2018,8:10. |
| APA | Liu, Wenjie.,Chen, Shengyun.,Liang, Junyi.,Qin, Xiang.,Kang, Shichang.,...&Qin, Dahe.(2018).The effect of decreasing permafrost stability on ecosystem carbon in the northeastern margin of the Qinghai-Tibet Plateau.SCIENTIFIC REPORTS,8,10. |
| MLA | Liu, Wenjie,et al."The effect of decreasing permafrost stability on ecosystem carbon in the northeastern margin of the Qinghai-Tibet Plateau".SCIENTIFIC REPORTS 8(2018):10. |
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来源：寒区旱区环境与工程研究所
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