Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Hu, Hongchang1; Wang, Genxu1,2 ; Liu, Guangsheng1; Li, Taibing1; Ren, Dongxing1; Wang, Yibo1; Cheng, Huiyan1; Wang, Junfeng1
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| 刊名 | ENVIRONMENTAL GEOLOGY
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| 出版日期 | 2009-05-01 |
| 卷号 | 57期号:6页码:1391-1397 |
| 关键词 | Alpine ecosystem degradation Soil temperature Vegetation coverage Seasonal frozen soil Permafrost |
| ISSN号 | 0943-0105 |
| 通讯作者 | Wang, Genxu |
| 英文摘要 | The alpine ecosystem is very sensitive to environmental change due to global and local disturbances. The alpine ecosystem degradation, characterized by reducing vegetation coverage or biomass, has been occurring in the Qinghai-Tibet Plateau, which alters local energy balance, and water and biochemical cycles. However, detailed characterization of the ecosystem degradation effect is lack in literature. In this study, the impact of alpine ecosystem degradation on soil temperature for seasonal frozen soil and permafrost are examined. The vegetation coverage is used to indicate the degree of ecosystems degradation. Daily soil temperature is monitored at different depths for different vegetation coverage, for both permafrost and seasonal frozen soils. Results show that under the insulating effort of the vegetation, the freezing and thawing process become quicker and steeper, and the start of the freezing and thawing process moves up due to the insulating effort of the vegetation. The influence of vegetation coverage on the freezing process is more evident than the thawing process; with the decrease of vegetation coverage, the integral of frozen depth increases for seasonal frozen soil, but is vice versa for permafrost. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 类目[WOS] | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 关键词[WOS] | CLIMATIC-CHANGE ; ACTIVE LAYER ; PERMAFROST ; CHINA ; ALASKA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000265622900014 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10565]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.Lanzhou Univ, Coll Resources & Environm, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Hongchang,Wang, Genxu,Liu, Guangsheng,et al. Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau[J]. ENVIRONMENTAL GEOLOGY,2009,57(6):1391-1397. |
| APA | Hu, Hongchang.,Wang, Genxu.,Liu, Guangsheng.,Li, Taibing.,Ren, Dongxing.,...&Wang, Junfeng.(2009).Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau.ENVIRONMENTAL GEOLOGY,57(6),1391-1397. |
| MLA | Hu, Hongchang,et al."Influences of alpine ecosystem degradation on soil temperature in the freezing-thawing process on Qinghai-Tibet Plateau".ENVIRONMENTAL GEOLOGY 57.6(2009):1391-1397. |
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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