Studies On Restoration Of Storm Damage In A Evergreen Broadleavd Forest In JiuLianShan National Nature Reserve

The subtropical mountian evergreen broadleaved forest ecosystem of South JiangXi Province was severely damaged by the snow storm in early 2008.Significant differences of the damaged forest were observed by analyzing and researching the 19128 trees (DBH≥1cm).Lower trees (H<6m) with smaller DBH (DBH<12cm) were more likely to bend in the weather; while taller ones (8m-20m) with greater DBH (12cm-30cm) were more likely to suffer up rooting or stem breakage; trees with a greater DBH (DBH> 36cm) were more easily to be crown broken. The research showed that there exists a positive correlation between the forest injured rate and recovery time. The curve of the forest injury rate and recovery time had a big fluctuation range when the forest injury rate was 30%, because of the environmental and original vegetation influences. While the recovery time was decided by the tree growth rate when the forest injury rate was greater than 40%.Recovery time of the trees'survival rate was different by analyzing and researching the 6 species. The recovery time of Liquidambar formosana which had been taken nearly 33 years was the longest. The recovery times of Castanopsis carlesii and Alniphyllum fortune were the shortest,which were about 15 years. The descending order of recovery time was: Liquidambar formosana, Castanopsis rargesn, Pinus massoniana, Schima superba, Castanopsis carlesii and Alniphyllum fortune. The research had shown that there was a significant logistic curve between recovery time and survival rate. The recovery time of forest survival rate was decided by the damage level of forest and the growth rate of species.