|vegetation where has not disrupted by flooding for a long time, is the most famous Taiwanese forestrecreation area in maple scenery. However, the maple trees were lashed by flooding and debris flow of asequence of typhoons, Sinlaku especially, in 2008. We set a 90 m×230 m long-term monitoring samplingplot at Maple Tree Zone. The location and diameter of breath height (DBH) for each species individual treeand the topography of plot were measured. The status of growth and survival for each species after floodingand debris flow were monitored in each season while the topography was measured at the same time. Thereare 1,201 individuals in sampling plot and Liquidambar formosana (maple tree, 261 trees), Zelkova serrata(186 trees), Cinnamomum insularimontanum (159 trees), Cyclobalanopsis glauca (92 trees), Scheffleraoctophylla (90 trees) were the dominate species. The location map of each species individual tree (DBH≧3cm) in sampling plot showed mosaic or zonation. Our result showing that the position of streamway andtopography of Maple Tree Zone were affected by rainfall. The individuals of fern, herbaceous, and seedlingsand saplings of woody plants were destroyed by flooding and debris flow. There were 225, 97 and 167 deadtrees were monitored during our survey period, respectively; and total 61.20% individuals were dead. Thesurvival rate showing different between seasons and species reflected the difference of trees sensibilityand tolerance after disrupted by flooding and debris flow. Liquidambar formosana got the lowest dead ratesomewhat expressed the maple trees might adapt in the riparian zone. However, the survival maple treesattacked by scolytid beetles were recorded in our investigation recently and the following survey on survivalmonitoring of maple trees attacked by those scolytid beetles were necessary.