Spatial scale effect of land use landscape pattern in Yongdeng County, Gansu Province, China.

doi:10.13287/j.1001-9332.201604.017

Abstract

Abstract: Based on “patch-corridor-matrix” pattern, spatial scale effect of landscape pattern was studied in Yongdeng County of Lanzhou City, Gansu Province, China. The results showed that the grassland was the matrix of landscape structure in the studied area, road and river played the corridor role, and the other landscape elements (cultivated land, forest land, garden land, residential land, industrial and mineral land, public management and service land, and the other land) acted as patches. The patch level index and the landscape level index all showed obvious dependence on spatial extent. The scale effect of patch index of different landscape elements existed differently in different extent intervals, so did the scale effect of the landscape level index. Within the extent of 1-20 km, the scale effect showed the most obvious difference between the element types and the index types, while it became smaller in 21-90 km, and disappeared beyond 90 km. 90 km×90 km might be the effective extent to study the dependence of spatial extent of landscape structure.

LIU Yuan-yuan, LIU Xue-lu. Spatial scale effect of land use landscape pattern in Yongdeng County, Gansu Province, China.[J]. Chinese Journal of Applied Ecology, 2016, 27(4): 1221-1228.

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