干旱区生态环境知识资源中心(Arid): IMPACT OF ROAD CONSTRUCTION ON VEGETATION ALONGSIDE QINGHAI-XIZANG HIGHWAY AND RAILWAY

Arid

DOI	10.1007/s11769-003-0040-5
	IMPACT OF ROAD CONSTRUCTION ON VEGETATION ALONGSIDE QINGHAI-XIZANG HIGHWAY AND RAILWAY
	Chen Hui; Li Shuangcheng; Zhang Yili
来源期刊	Chinese Geographical Science
ISSN	1002-0063
出版年	2003
卷号	13 期号:4 页码:340-346
英文摘要	Based on the field investigation in August 2001 and August 2002, digital China Vegetation Map in 2001 and Qinghai-Xizang (Tibet) Plateau Vegetation Regionalization Map in 1996, vegetation characteristics along two sides of Qinghai-Xizang highway and railway are studied in this paper. Meanwhile, the impact of Qinghai-Xizang highway and railway constmctions on the vegetation types are analyzed using ARCVIEW, ARC/INFO and PATCH ANALYSIS. It was found that: 1) Qinghai-Xizang highway and railway span 9 latitudes, 12 longitudes and 6 physical geographic regions (East Qinghai and Qilian mountain steppe region, Qaidam mountain desert region, South Qinghai-Xizang alpine meadow steppe region, Qiangtang alpine steppe region, Golog-Nagqu alpine shrub meadow region and South Xizang mountain shrub steppe region); 2) the construction of Qinghai-Xizang highway and railway destroyed natural vegetation and landscape, especially in 50m-wide buffer regions along both sides of the roads, it was estimated that the net primary productivity deceased by about 30 504.62t/a and the gross biomass de-ceased by 432 919.25-1 436 104.3t. The losing primary productivity accounted for 5.70% of the annual primary pro-ductivity within lkm-wide buffer regions (535 005.07-535 740.1 It/a), and only 0.80%-0.89% of that within lOkm-wide buffer regions (3 408 950.45-3 810 480.92t/a). The losing gross biomass was about 9.47%-17.06% of the gross biomass within lkm-wide buffer regions (7 502 971.85-25 488 342.7H), and only 1.47%-2.94% of that within lOkm-wide buffer regions (43 615 065.35-164 150 665.37t).
英文关键词	Qinghai-Xizang highway and railway vegetation types landscape index fragmentation net prima-ry productivity biomass
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:1271654
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334847
作者单位	Chen Hui, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, BeiJing 100101, China.; Zhang Yili, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, BeiJing 100101, China.; Li Shuangcheng, College of Environmental Sciences, Peking University, BeiJing 100871, China.
推荐引用方式 GB/T 7714	Chen Hui,Li Shuangcheng,Zhang Yili. IMPACT OF ROAD CONSTRUCTION ON VEGETATION ALONGSIDE QINGHAI-XIZANG HIGHWAY AND RAILWAY[J],2003,13(4):340-346.
APA	Chen Hui,Li Shuangcheng,&Zhang Yili.(2003).IMPACT OF ROAD CONSTRUCTION ON VEGETATION ALONGSIDE QINGHAI-XIZANG HIGHWAY AND RAILWAY.Chinese Geographical Science,13(4),340-346.
MLA	Chen Hui,et al."IMPACT OF ROAD CONSTRUCTION ON VEGETATION ALONGSIDE QINGHAI-XIZANG HIGHWAY AND RAILWAY".Chinese Geographical Science 13.4(2003):340-346.