How does pipeline construction affect land desertification? A case study in northwest China
文献类型：期刊论文
| 作者 | Shi, Peng; Huang, Yong; Chen, Chen; Wang, Yafeng; Xiao, Jun; Chen, Liding |
| 刊名 | NATURAL HAZARDS
 |
| 出版日期 | 2015-07 |
| 卷号 | 77期号:3页码:1993-2004 |
| 关键词 | Cumulative effect Heihe River Basin Land desertification Oasis Satellite observation Pipeline |
| 英文摘要 | The expansion of large pipelines can strongly affect fragile ecosystems in arid regions. However, the issue of oasis desertification due to pipeline construction has rarely been addressed. In this study, three parallel pipelines routed through the Zhangye Oasis located in the middle Heihe River Basin in northwest China were chosen as a case study, and the intensity and extent of the pipeline construction disturbances on oasis desertification were evaluated using satellite images. The results indicated that land desertification increased from 20,427 ha before the pipeline disturbance to 26,312 ha after the construction in the 5000-m buffer zone. The relative rate of land desertification was used to identify the cumulative impact of pipeline disturbance. The threshold distance of the first pipeline's disturbance was 2000-3000 m. However, after the second and third pipeline installations, the threshold extended to 3000-4000 m, which may result from the cumulative impact of the incremental projects. The disappearance of soil and vegetation, and rivers across was the direct impacts of the pipelines' construction on oasis desertification. Cutting and grazing along the ancillary road made for increasing reclamation led to indirect impacts of the pipelines' construction on oasis degradation. To reduce the effects of pipeline disturbance on oasis desertification, the implementation of mitigation measures such as backfilling the removed soil, recovery of the local vegetation, retirement of the degraded cropland, limitation of ancillary roads, and cross-river cofferdam diversions are recommended for the environmental management of pipeline projects. |
| 研究领域[WOS] | Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources |
| WOS记录号 | WOS:000355633100031 |
| 公开日期 | 2016-03-08 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/32316]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Shi, Peng,Huang, Yong,Chen, Chen,et al. How does pipeline construction affect land desertification? A case study in northwest China[J]. NATURAL HAZARDS,2015,77(3):1993-2004. |
| APA | Shi, Peng,Huang, Yong,Chen, Chen,Wang, Yafeng,Xiao, Jun,&Chen, Liding.(2015).How does pipeline construction affect land desertification? A case study in northwest China.NATURAL HAZARDS,77(3),1993-2004. |
| MLA | Shi, Peng,et al."How does pipeline construction affect land desertification? A case study in northwest China".NATURAL HAZARDS 77.3(2015):1993-2004. |
入库方式： OAI收割
来源：生态环境研究中心
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。