Abstract：In order to know the effect of water transfer project construction on landscape pattern,the middle route of the South-North Water Transfer Project in Hebei Province,Yi county,was selected as the subject of study,using buffers from 100 m range to 3 000 m range,taking Arc GIS and FRAGSTATS software to analyze the land use changes in three periods,namely pre-construction,during construction and after construction,several landscape metrics were chosen at class-level and landscape level to analyze the landscape pattern changes,so as to reveal the effect of water transfer construction on landscape pattern alongside the construction region.The results showed that: water transfer construction brings observably influence to the regional land use patterns,the scope of main influence was within the range of 100 m by construction.

Keyword：the South-North Water Transfer Project;water transfer construction;landscape indexes;remote sensing image;