WANG Ji-xia, SUN Hu, LI Jun-lin, et al. Landscape Pattern Change of Chang'an River Basin in the Water Source Area of the Middle-Route of the South-to-North Water Diversion Project[J]. Bulletin of Soiland Water Conservation, 2008, 27(4): 147-151.
WANG Ji-xia, SUN Hu, LI Jun-lin, et al. Landscape Pattern Change of Chang'an River Basin in the Water Source Area of the Middle-Route of the South-to-North Water Diversion Project[J]. Bulletin of Soiland Water Conservation, 2008, 27(4): 147-151.DOI:
the landscape types in the study area are charted based on the landscape classification using remote sensing images obtained in 1994 and 2003.Landscape patterns in the Chang'an River basin
apart of the water source area of the middle-route of the South-to-North Water Diversion Project
are analyzed in view of landscape patch characters
landscape diversity
and landscape fragmentation by selecting the indices of patch number
diversity
dominance
evenness
fractal dimension
and fragmentation.The analysis of the ecological landscape patterns indicates that the patch number in the basin increased obviously from 469 in 1994 to 1518 in 2003.Disturbed by human activities
landscape diversity index increased by 0.61 from 1994 to 2003
but the level of landscape diversity was low.The landscape fragmentation index in the basin increased from 1994 to 2003.Among the landscape patch types
the fragmentation index for the three landscape patch types(artificial woodland
dry land
and grassland) was high and was easily disturbed by human activities.