Road impacts on spatial patterns of land use and landscape fragmentation   in three parallel rivers region, Yunnan Province, China

doi:10.1007/s11769-014-0652-y

CORC > 北京大学 > 城市与环境学院

	Road impacts on spatial patterns of land use and landscape fragmentation in three parallel rivers region, Yunnan Province, China
	Liang Jun ; Liu Ye ; Ying Lingxiao ; Li Peng ; Xu Yue ; Shen Zehao
刊名	中国地理科学英文版
	2014
关键词	road network road level ecological impacts land use and land cover change (LUCC) landscape fragmentation the Three Parallel Rivers Region NORTHWEST YUNNAN NETWORKS BIODIVERSITY POPULATIONS VEGETATION TRANSPORT CORRIDORS ECOLOGY
DOI	10.1007/s11769-014-0652-y
英文摘要	The structure and function of network is a central issue in landscape ecology. Road networks with hierarchical structure are crucial for understanding landscape dynamics. In this study, we compared the distribution of national road, provincial road, county road and rural road in the Three Parallel Rivers Region (TPRR) in Yunnan Province of China, and estimated the effect of roads (and other factors) on the spatial patterns of land use and land cover with logistic regression. In addition, we analyzed the land use and land cover change (LUCC) and landscape fragmentation in 1989-2005 along a buffer zone of the primary traffic corridor, national road G214. The results showed that, county and rural roads had much higher percentage of length extending into more natural habitats at higher elevation and steeper slope, compared with the higher level roads in this region. While the distributions of natural land cover types were dominated by environmental factors, human land use types i.e., building land and farmland types were significantly related with roads, linking more closely with lower level roads. The LUCC dynamics (1989-2005) of the G214 buffer zone showed a general trend of land transformation from conifer forests and valley arid shrubs to building land and farmland, and from ice and snow to alpine shrubs and forests. With the length of G214 unchanged during the time, the overall landscape pattern changed little in the buffer zone, but habitat fragmentation and area decrease had occurred for the natural vegetation types, in contrast to patch mergence and expansion of human land use types, and landscape fragmentation was intensified above 2500 m a.s.l. but declined below the elevation. The results indicated the dynamics of landscape composition and patch type level distribution in spite of the stability of the overall landscape pattern, and implied the potential role of roads, especially the low level roads on landscape changes.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000329614100003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Environmental Sciences; SCI(E); 中国科学引文数据库(CSCD); 8; ARTICLE; shzh@urban.pku.edu.cn; 1,SI; 15-27; 24
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/160944]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Liang Jun,Liu Ye,Ying Lingxiao,et al. Road impacts on spatial patterns of land use and landscape fragmentation in three parallel rivers region, Yunnan Province, China[J]. 中国地理科学英文版,2014.
APA	Liang Jun,Liu Ye,Ying Lingxiao,Li Peng,Xu Yue,&Shen Zehao.(2014).Road impacts on spatial patterns of land use and landscape fragmentation in three parallel rivers region, Yunnan Province, China.中国地理科学英文版.
MLA	Liang Jun,et al."Road impacts on spatial patterns of land use and landscape fragmentation in three parallel rivers region, Yunnan Province, China".中国地理科学英文版 (2014).