干旱区生态环境知识资源中心(Arid): 基于遥感和GIS的青藏铁路生态累积效应研究

Arid

	基于遥感和GIS的青藏铁路生态累积效应研究
其他题名	Study on Ecological Cumulative Effects of Qinghai-Tibet Railway Based on Remote Sensing and Geographic Information System
	李佳承 1; 沈渭寿 2; 林乃峰 2; 欧阳琰 2
来源期刊	生态与农村环境学报
ISSN	1673-4831
出版年	2013
卷号	29 期号:5 页码:566-571
中文摘要	采用遥感和GIS技术,通过生态系统功能偏离累积指数、景观格局干扰累积指数、植被退化指数、生态阻隔累积指数和区域生态累积效应指数研究青藏铁路建设和运营对沿线生态系统的累积影响.结果表明,铁路建设和运营对沿线0~1 km直接影响区的生态服务功能、景观格局、植被覆盖和生态流均造成一定的累积影响,但以景观格局和生态流受到的影响最大,且对拉萨至唐古拉段的影响大于唐古拉至格尔木段,主要表现为对农田、草地、河流湿地和荒漠生态系统的影响.从铁路沿线>1~5和>5~10 km范围的间接或协同累积影响来看,拉萨至唐古拉段明显高于唐古拉至格尔木段.铁路建设运营对>1~5 km范围的农田、荒漠和河流湿地生态系统仍存在一定负面影响,且以农田生态系统受到的负面累积影响最大,主要表现为拉萨和格尔木城市扩张对农田生态系统的干扰和占用.
英文摘要	Cumulative impacts of construction and operation of the Qinghai-Tibet Railway on ecosystem were studied using eco-function deviation cumulative index, landscape disturbance cumulative index, vegetation degradation cumulative index, ecological blocking cumulative index and regional ecological cumulative effect index with the aid of the remote sensing and GIS technology and on the basis of relevant research results available. Results show that the construction and operation of the railway does have some cumulative effects on the ecological service function, landscape pattern, vegetation coverage and ecological flow of the direct impact zones, 0-1 km wide alongside the railway. Its impacts on landscape pattern and ecological flow were the most significant and more on the Lhasa-Tanglha section than on the Tanglha-Golmud section, and are demonstrated mainly in farmland, grassland, river wetland and desert ecosystems. In terms of indirect or synergic cumulative impacts on the >1-5 km and >5-10 km wide zones alongside the railway, the Lhasa-Tanglha section is more significant than the Tanglha-Golmud section. Some negative effects are observed on the farmland, desert and river ecosystems in the two zones, especially the farmland ecosystem,in the form of disturbance and alienation as a result of the expansion of Lhasa and Golmud.
中文关键词	青藏铁路 ; 生态累积效应 ; 协同作用 ; 遥感
英文关键词	GIS Qinghai-Tibet railway ecological cumulative effect synergy remote sensing GIS
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:5022896
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230095
作者单位	1.南京信息工程大学遥感学院, 南京, 江苏 210044, 中国; 2.环境保护部南京环境科学研究所, 南京, 江苏 210042, 中国
推荐引用方式 GB/T 7714	李佳承,沈渭寿,林乃峰,等. 基于遥感和GIS的青藏铁路生态累积效应研究[J],2013,29(5):566-571.
APA	李佳承,沈渭寿,林乃峰,&欧阳琰.(2013).基于遥感和GIS的青藏铁路生态累积效应研究.生态与农村环境学报,29(5),566-571.
MLA	李佳承,et al."基于遥感和GIS的青藏铁路生态累积效应研究".生态与农村环境学报 29.5(2013):566-571.