气候变化领域集成服务门户(CCPortal): Effect of the Qinghai-Tibet Railway on vegetation abundance

CCPortal

DOI	10.1080/01431161.2015.1041179
	Effect of the Qinghai-Tibet Railway on vegetation abundance
	Wang, Guangjun; Gillespie, Alan R.; Liang, Shihai; Mushkin, Amit; Wu, Qingbai
发表日期	2015
ISSN	0143-1161
EISSN	1366-5901
起始页码	5222
结束页码	5238
卷号	36 期号:19-20
英文摘要	Large-scale engineering projects such as mines and dams cause ecological damage that can persist after construction is complete. The Qinghai-Tibet Railway (QTR) from Golmud to Lhasa was constructed entirely during the Landsat era and began operating in 2006. Therefore, it presents an opportunity for determining both the extent of ecological damage and the time required for some level of natural restoration after a major construction project. We have studied the effect of the QTR construction on vegetation abundance measured using multi-endmember spectral mixture analysis (MESMA) of a time series of Landsat TM/ETM+ images (2001, 2007, 2010) covering the 231km stretch of the railway from south of Kaixinling Station to north of Chumaerhe Station. We found that the effect of QTR construction on vegetation abundance was limited to within 5.0km of the tracks, the largest decrease, 2.9%, occurring within 0.125km of the tracks from 2001 to 2007. There was only 0.4% further decrease in vegetation abundance from 2007 to 2010. We attributed the decrease in vegetation abundance within 0.125km of the tracks mostly to the accumulation of drifting sand resulting from the barrier of the railway and the measures adopted to keep the sand away from the railway under the prevailing west or northwest winds. It appears that in this sensitive cold desert, vegetation damage was limited to the period of railway construction.
语种	英语
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Remote Sensing ; Imaging Science & Photographic Technology
WOS关键词	SPECTRAL MIXTURE ANALYSIS ; MULTISPECTRAL IMAGES ; GREEN VEGETATION ; AVIRIS DATA ; COVER ; ENVIRONMENTS ; DYNAMICS ; PLATEAU ; IMPACT
WOS记录号	WOS:000364334500029
来源期刊	INTERNATIONAL JOURNAL OF REMOTE SENSING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/240295
作者单位	[Wang, Guangjun] China Univ Geosci, Sch Land Sci & Technol, Beijing 100083, Peoples R China; [Wang, Guangjun; Gillespie, Alan R.; Mushkin, Amit] Univ Washington, Dept Earth & Space Sci, Seattle, WA 98105 USA; [Liang, Shihai] China Univ Geosci, Sch Water Resources & Environm, Beijing 100083, Peoples R China; [Wu, Qingbai] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Guangjun,Gillespie, Alan R.,Liang, Shihai,et al. Effect of the Qinghai-Tibet Railway on vegetation abundance[J]. 中国科学院西北生态环境资源研究院,2015,36(19-20).
APA	Wang, Guangjun,Gillespie, Alan R.,Liang, Shihai,Mushkin, Amit,&Wu, Qingbai.(2015).Effect of the Qinghai-Tibet Railway on vegetation abundance.INTERNATIONAL JOURNAL OF REMOTE SENSING,36(19-20).
MLA	Wang, Guangjun,et al."Effect of the Qinghai-Tibet Railway on vegetation abundance".INTERNATIONAL JOURNAL OF REMOTE SENSING 36.19-20(2015).