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Influences of alpine ecosystem responses to climatic change on soil properties on the Qinghai-Tibet Plateau, China
文献类型：期刊论文
| 作者 | Wang, Genxu1,3 ; Wang, Yibo2; Li, Yuanshou3; Cheng, Huiyan2
|
| 刊名 | CATENA
 |
| 出版日期 | 2007-08-01 |
| 卷号 | 70期号:3页码:506-514 |
| 关键词 | alpine ecosystem response to climatic change soil properties degradation Qinghai-Tibet plateau |
| ISSN号 | 0341-8162 |
| 通讯作者 | Wang, Genxu |
| 英文摘要 | Alpine ecosystems are quite sensitive to global climatic changes. Drawing from two sets of remote sensing data (1986 and 2000) and field investigations, the ecological index method was used to document ecosystem changes in the Yangtze and Yellow River source regions of central Qinghai-Tibet. Although crucial to understanding alpine ecosystem responses to global climatic changes, and in assessing the potential for their rehabilitation, the impact of such changes on alpine soil characteristics, including structure, composition, water retention, as well as chemical and nutrient contents, is poorly understood. Over a 15-year period (1986-2000), climatic changes led to considerable degradation of alpine meadows and steppes. In the meadows, the surface layers of the soil became coarser, bulk density, porosity and saturated hydraulic conductivity rose, while water-holding capacity decreased. In comparison, steppe soils showed little changes in soil physical properties. Degradation of alpine ecosystems led to large losses in soil available Fe, Mn and Zn. Important losses in soil organic matter (SOM) and total nitrogen (TN) occurred in badly degraded ecosystems. Climate warming in the Qinghai-Tibet Plateau, caused by the impact of greenhouse gas, has resulted in changes of cold alpine ecosystem such as the significant alteration of the soil C and N cycles. (c) 2007 Elsevier B.V.. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine |
| 类目[WOS] | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| 研究领域[WOS] | Geology ; Agriculture ; Water Resources |
| 关键词[WOS] | DYNAMICS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000248715200024 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10523]  |
| 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.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Lanzhou Univ, Coll Resources & Envrironm, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Genxu,Wang, Yibo,Li, Yuanshou,et al. Influences of alpine ecosystem responses to climatic change on soil properties on the Qinghai-Tibet Plateau, China[J]. CATENA,2007,70(3):506-514. |
| APA | Wang, Genxu,Wang, Yibo,Li, Yuanshou,&Cheng, Huiyan.(2007).Influences of alpine ecosystem responses to climatic change on soil properties on the Qinghai-Tibet Plateau, China.CATENA,70(3),506-514. |
| MLA | Wang, Genxu,et al."Influences of alpine ecosystem responses to climatic change on soil properties on the Qinghai-Tibet Plateau, China".CATENA 70.3(2007):506-514. |
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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