Land use and land cover change along the topographic gradients and stream corridors in the LRGR

• DOI: 10.1007/s11434-006-8108-0
• Publication Date: 2006-11-01
• Authors: Zhenghai Li; Guobao Song; Jixi Gao; Yajing Bao; Peng Hua; Wang Hai-mei; Jiang Yun; Haiyan Lu
• Keywords: Landform; Elevation (ballistics); Land Cover

With the Longitudinal Range-Gorge Region (LRGR) in southwestern China as object, this research studied how land use pattern varies with complex topographic features. Based on 1:50000 digital elevation model (DEM) data and remote sensing images 1980, 2001, by using GIS map algebra method, we investigated relationship between landform (e.g. stream networks) use, especially correlation of human activities spatial arrangement networks. This paper reveals that cover changes valleys rich water source at lower elevations are characterized distinct successional gradients from river to upland, which was possibly due distance availability resource. And dividing region into four vertical zones according their elevations, found each zone were significantly different. Finally, it is indicated jamming effects LRGR spatially heterogeneous thus led barrier effect corridors.