Evaluation of an Ecosystem Service for Avoided-reservoir-sedimentation and Its Economic Value
文献类型：会议论文
| 作者 | Wu Nan1,2,3; Gao Ji-Xi4; Ennaanay Driss5; Mendoza Guillermo F.5; Sudebilige3; Luo Zun-Lan3; Li Dai-Qing3 |
| 出版日期 | 2009 |
| 会议日期 | JUL 04-05, 2009 |
| 会议地点 | Wuhan |
| 关键词 | avoided-reservoir-sedimentation watershed soil erosion sediment delivery ratio sediment yield economic value Ertan reservoir |
| DOI | 10.1109/ESIAT.2009.256 |
| 页码 | 23-30 |
| 国家 | PEOPLES R CHINA |
| 英文摘要 | In China the current approaches to evaluating the efficacy of the ecosystem service for avoided-reservoir-sedimentation cannot identify the supplier and beneficiary. In addition, the use of the same whole-country coefficient of sediment delivery for different areas can lead to inaccurate results. Based on the integrated Geographic Information System (GIS) software package, ArcGIS9.2, a new model was established to simulate this ecosystem service and its economic value. The model included fabricating the watershed of the study reservoir. The Sediment Delivery Ratio (SDR) and the Universal Soil Loss Equation (USLE) were used to simulate the spatial patterns of the annual sediment yield and sediment retention in watershed. The economic value in this model of the ecosystem service was determined for a fixed number of years. Taking the Ertan reservoir as an example, the results showed that the actual sediment yield was 629.3x104t.a(-1) in the watershed. It occupied 12.7% of the actual soil erosion volume. Farmland was the most important source of sediment yield. Its actual sediment yield occupied 62.9% of the total. The region with a higher quantity of sediment yield and sediment retention was around the reservoir. The contribution ratio of the forest to the avoided-reservoir-sedimentation service value was higher than those of the other contributors on a per unit area basis. For the reservoir's designed operating life, the total value of this service in the watershed was 27529.2x10(8)Yuan. |
| 源文献作者 | IEEE |
| 产权排序 | 1 |
| 会议录 | 2009 INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND INFORMATION APPLICATION TECHNOLOGY, VOL III, PROCEEDINGS,
 |
| 语种 | 英语 |
| ISBN号 | 978-0-7695-3682-8 |
| WOS记录号 | WOS:000274010700006 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34934]  |
| 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） |
| 通讯作者 | Wu Nan |
| 作者单位 | 1.Chengdu Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; 2.Graduate University, Chinese Academy of Sciences, Beijing, China; 3.Institute of Ecology, Chinese Research Academy of Environmental Sciences, Beijing, China; 4.Department of Science, Technology and Standards, Ministry of Environmental Protection of the People's Republic of China, Beijing, China; 5.Department of Biological Sciences, Stanford University, CA, United States |
| 推荐引用方式 GB/T 7714 | Wu Nan,Gao Ji-Xi,Ennaanay Driss,et al. Evaluation of an Ecosystem Service for Avoided-reservoir-sedimentation and Its Economic Value[C]. 见:. Wuhan. JUL 04-05, 2009. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。