干旱区生态环境知识资源中心(Arid): 青藏公路铁路沿线生态系统特征及道路修建对其影响

Arid

	青藏公路铁路沿线生态系统特征及道路修建对其影响
其他题名	Features of Ecosystems alongside Qinghai-Xizang Highway and Railway and the Impacts of Road Construction on Them
	陈辉 1; 李双成 2; 郑度 1
来源期刊	山地学报
ISSN	1008-2786
出版年	2003
卷号	21 期号:5 页码:559-567
中文摘要	根据2001－08和2002－08月野外调查数据及2001年1：100万中国植被图、1996年1：400万青藏高原植被区划图和2000年青藏铁路沿线自然保护区分布及功能区界调整图，以青藏公路铁路沿线植被生态系统为研究对象，运用ARCVIEW和ARC／INFO软件研究青藏公路铁路建设对沿线生态系统结构的影响，结论如下：①青藏公路铁路南北跨越9个纬度、东西跨越12个经度，共穿越青东祁连山地草原地带、柴达木山地荒漠地带、青南高寒草甸草原地带羌塘高寒草原地带、果洛那曲高寒灌丛草甸地带和藏南山地灌丛草原地带6个自然区，对植被类型的统计结果显示了地带性。②青藏公路铁路的建设对生态系统产生直接的切割，使景观更加破碎。③青藏公路铁路的建设直接破坏沿线植被生态系统（主要为50m缓冲区内），年损失总净初级生产量为30504.62t，损失总生物量432919.25～1436104.3t/a。损失总净初级生产量占1km缓冲区年净初级生产量535005.07～535740.11t/a的百分比为5.70%，占10km缓冲区年净初级生产量3408950.45～3810480.92t/a的0.80～0.89%；损失生物量占1km缓冲区生物总量7502971.85～25488342.71t/a的5.70%，占10km缓冲区总生物量43615065.35～164150665.37t/a的0.80%～0.89%。
英文摘要	Based on the field investigation in Aug.2001 and Aug.2002, digital China Vegetation Map in 2001 and Qinghai-Xizang Plateau Vegetation Regionalization Map in 1996, vegetation characteristic along two sides of Qinghai-Xizang highway and railway is studied in this article. Meanwhile, the impacts of Qinghai-Xizang high-way and railway constructions on the ecosystems are analyzed using ARCV1EW ARC/INFO and PATCH ANALYSIS. It was found that: (1) Qinghai-Xizang highway and railway span 9 altitudes, 12 longitudes and 6 natural regions (East Qinghai and Qilian mountain steppe region, Chaidamu mountain desert region, South Qinghai alpine meadow steppe region, Qiangtang alpine steppe region, Guoluonaqu alpine scrub meadow region and South Xizang mountain shrub steppe region); (2) the constructions 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 Primary Productivity deceased by about 30504.62t/a and the gross biomass deceased by 432919.25～l436104.3t/a. The losing Primary Productivity accounted for 5.70%of the annual Primary Pro-ductivity within lkm-wide buffer regions (535005.07～535740. llt/a), and only 0.80～0.89% of that within 10km-wide buffer regions (3408950.45～3810480.92t/yr). The losing gross biomass was about 5.70% of the gross biomass within lkm-wide buffer regions (7502971.85-25488342.71t/a), and only 0.80～0.89% of that within 10km-wide buffer regions (43615065.35～164150665.37t/a).
中文关键词	青藏公路铁路沿线植被 ; 生态系统 ; 破碎 ; 净衩级生产力 ; 生物量
英文关键词	vegetation alongside Qinghai-Xizang highway and railway ecosystems fragment the primary productivity biomass
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:1174784
来源机构	中国科学院地理科学与资源研究所 ; 北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204264
作者单位	1.中国科学院地理科学与资源研究所, 北京 100101, 中国; 2.北京大学环境学院, 北京 100871, 中国
推荐引用方式 GB/T 7714	陈辉,李双成,郑度. 青藏公路铁路沿线生态系统特征及道路修建对其影响[J]. 中国科学院地理科学与资源研究所, 北京大学,2003,21(5):559-567.
APA	陈辉,李双成,&郑度.(2003).青藏公路铁路沿线生态系统特征及道路修建对其影响.山地学报,21(5),559-567.
MLA	陈辉,et al."青藏公路铁路沿线生态系统特征及道路修建对其影响".山地学报 21.5(2003):559-567.