Abstract:A damaging ice storm struck southern China in January 2008, affecting 19 provinces of China and nearly 17.65 million hm2 of forests. Although disturbance of this scale occurred rarely (once in a century), it provided a unique opportunity to study short- and long-term impacts on the compositions, structure and succession of forest ecosystem. A 3.2 hm2 plot was set up in the ice storm-damaged montane evergreen broad-leaved forest in Damingshan National Nature Reserve. The plot was divided into 80 subplots, each of 400m2. Within each subplot, all trees (diameter at breast height or DBH≥1.0cm) were identified, mapped and tagged at breast height (1.3 m from the base) with pre-numbered aluminum tags, and the DBH and stem heights of these taged trees was measured. In addition, the LAI of the plots were determined. We assigned each ice-damaged tree one of the following three damage categories: main stem broken, tree uprooted, or dead. We carried out surveys in 2009 and 2010. The evergreen broad-leaved forest of Damingshan National Nature Reserve were affected severely by the ice storm as the damaged trees accounted for 51.8% of the total individuals with DBH≥1.0cm in 2009. There were 776 dead trees in 2010, 6.75 times of that in 2009. In particular, small trees (DBH 2-6cm) were more damaged more severely than big ones, accounting for 68.18%, 54.29%, and 83.51% of the total broken main stems, the total uprooted and the total dead trees, respectively. Resilience of canopy cover to the disturbance was great, as indicated by 55.4% increase in LAI of the forest from 2009 to2010. Furthermore, species abundance, richness, Shannon-Wiener index and Simpson index of the community had increased 14.96%、10.05%、3.89% and 1.13%, respectively, from 2009 to 2010. These changes were statistically significantly (P=0.018-0.000, df=79). However, the mortality of large trees of dominant canopy species (Huodendron biaristatum, and Acer fabric) will affect the community stability.