Influences of alpine ecosystem responses to climatic change on soil
文献类型：期刊论文
| 作者 | Genxu Wang（王根绪） ; Yibo Wang ; Yuanshou Li ; Huiyan Cheng |
| 刊名 | CATENA
 |
| 出版日期 | 2007 |
| 卷号 | 70期号:3页码:506-514 |
| 关键词 | Alpine ecosystem |
| 通讯作者 | Genxu Wang |
| 合作状况 | 国内 |
| 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. |
| 语种 | 英语 |
| 公开日期 | 2010-11-09 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/2489]  |
| 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） |
| 推荐引用方式 GB/T 7714 | Genxu Wang,Yibo Wang,Yuanshou Li,et al. Influences of alpine ecosystem responses to climatic change on soil[J]. CATENA,2007,70(3):506-514. |
| APA | Genxu Wang,Yibo Wang,Yuanshou Li,&Huiyan Cheng.(2007).Influences of alpine ecosystem responses to climatic change on soil.CATENA,70(3),506-514. |
| MLA | Genxu Wang,et al."Influences of alpine ecosystem responses to climatic change on soil".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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