The Dynamic Characteristics of the Seedling Bank of Quercus Community 
at Different Restoration Stages under the Disturbance of 
 Forest Fire in Baotianman Nature Reserve

ZHU Xue-ling; CUI Xiang-hui; LIU Xiao-jing

Using a space substitute for time approach, this paper investigates the dynamic characteristics of the seedling bank of Quercus spp. community at different restoration stages under the disturbance of ground fire in Baotianman National Nature Reserve. The results showed that there were 49 species of wood seedlings belonging to 37 genera of 25 families at different restoration stages after fire in Quercus spp. community, with the recovery of the vegetation in the burned area, the amount of the wood species seedling increased and the shrub species seedling decreased, but the Quercus spp. seedling always maintained prevalence at different stages; the density of the seedling bank under the forest became smaller as the restoration time prolonged, the density of the Quercus spp. seedling showed a high-low-high fluctuation. The density reached the highest amount of (9.34±4.71)plant/10 m2 1 year after fire; there were a significant differences between the seedling bank under the forest 1 year after fire and 10 years after fire, and between 15 years and the primeval forest, but no significant difference was found between 1 year after fire and 5 years after fire, and between 10 years after fire and the primeval forest.The density change of the Quercus spp. seedling showed a 2-stages process and there were a significant differences between 1 year after fire and 5 years after fire, and between 10 years and 15 years, but no significant difference was found between the seedling bank of Quercus spp. community at different restoration stages and the primeval forest; the Shannon-Wiener index of the seedling bank showed a great difference at different restoration stages. The adjacent recovery stages shared more seedling species and the similarity index was higher. Comparing every 2 Quercus spp. communities at different restoration stages, they shared 4 to 17 species. With the succession time prolonged, the percentage of the wood seedlings increased gradually while the percentage of the root sprout seedling declined; 5 years after the restoration of the vegetation, no root sprout seedlings existed under the Quercus spp. forest, while the shrub seedlings under forest also disappeared in the community of 10 years after the recovery. It showed that the disturbance of forest fire had a significant influence on the distribution of the height of seedlings of Quercus spp.Ⅰ, Ⅱand Ⅲ and the transformation efficiency of the nursery stock, but no significant influence was found on those of seedlings above Quercus spp.Ⅳ.

The Dynamic Characteristics of the Seedling Bank of Quercus Community at Different Restoration Stages under the Disturbance of Forest Fire in Baotianman Nature Reserve

1. Baotianman Research and Monitoring Center of Henan Province, Neixiang 474350, Henan , China

2. Baotianman Forestry Ecosystem Research Station of State Forestry Administration, Neixiang 474350, Henan, China

3. Research Institute of Desertification Studies, Chinese Academy of Forestry, Beijing 100091, China

Received Date: 2011-11-15

Abstract: Using a space substitute for time approach, this paper investigates the dynamic characteristics of the seedling bank of Quercus spp. community at different restoration stages under the disturbance of ground fire in Baotianman National Nature Reserve. The results showed that there were 49 species of wood seedlings belonging to 37 genera of 25 families at different restoration stages after fire in Quercus spp. community, with the recovery of the vegetation in the burned area, the amount of the wood species seedling increased and the shrub species seedling decreased, but the Quercus spp. seedling always maintained prevalence at different stages; the density of the seedling bank under the forest became smaller as the restoration time prolonged, the density of the Quercus spp. seedling showed a high-low-high fluctuation. The density reached the highest amount of (9.34±4.71)plant/10 m2 1 year after fire; there were a significant differences between the seedling bank under the forest 1 year after fire and 10 years after fire, and between 15 years and the primeval forest, but no significant difference was found between 1 year after fire and 5 years after fire, and between 10 years after fire and the primeval forest.The density change of the Quercus spp. seedling showed a 2-stages process and there were a significant differences between 1 year after fire and 5 years after fire, and between 10 years and 15 years, but no significant difference was found between the seedling bank of Quercus spp. community at different restoration stages and the primeval forest; the Shannon-Wiener index of the seedling bank showed a great difference at different restoration stages. The adjacent recovery stages shared more seedling species and the similarity index was higher. Comparing every 2 Quercus spp. communities at different restoration stages, they shared 4 to 17 species. With the succession time prolonged, the percentage of the wood seedlings increased gradually while the percentage of the root sprout seedling declined; 5 years after the restoration of the vegetation, no root sprout seedlings existed under the Quercus spp. forest, while the shrub seedlings under forest also disappeared in the community of 10 years after the recovery. It showed that the disturbance of forest fire had a significant influence on the distribution of the height of seedlings of Quercus spp.Ⅰ, Ⅱand Ⅲ and the transformation efficiency of the nursery stock, but no significant influence was found on those of seedlings above Quercus spp.Ⅳ.

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Reference (15)

[1]	周以良. 中国大兴安岭植被[M]. 北京:科学出版社,1991:205-216
[2]	郑焕能,贾松清,胡海清,等. 大兴安岭林区的林火与植被恢复[J]. 东北林业大学学报,1986,14:1-7
[3]	中科院中国植物志编委会. 中国植物志(22卷)[M]. 北京:科学出版社,1998:219-262
[4]	叶永忠,翁梅,杨修. 伏牛山栎类群落多样性的研究[J].植物学通报,1995,12(增刊):79-84
[5]	王中磊,高贤明. 啮齿动物对锐齿槲栎坚果的取食模式及坚果的命运[J].生态学报,2006,26(11):3533-3541
[6]	王中磊,高贤明. 锐齿槲栎林的天然更新[J].生态学报,2005,25(5):986-993
[7]	胡楠,张恒月,丁圣彦,等. 宝天曼自然保护区锐齿栎更新潜力研究[J]. 南阳理工学院学报,2009,1(3):78-80
[8]	史作民,刘世荣,程瑞梅,等. 河南宝天曼种子植物区系特征[J].西北植物学报,1996,16(3): 329-335
[9]	阎东锋,李纪亮,何瑞珍,等. 宝天曼栎类天然次生林群落稳定性研究[J].西北林学院学报,2006,21(5):69-73
[10]	许建伟,沈海龙,张秀亮,等. 我国东北林区花楸树的天然更新特征[J].应用生态学报,2010,21(1):9-15
[11]	方精云,王襄平,沈泽昊,等.植物群落清查的主要内容、方法和技术规范[J]. 生物多样性,2009,17(6):533-548
[12]	刘峰,陈伟烈,贺金生. 神农架地区锐齿槲栎种群结构与更新的研究[J].植物生态学报,2002,4(4):396-401
[13]	刘玉萃,吴明作,郭宗民,等. 内乡宝天曼保护区锐齿栎林生物量和净生产力研究[J].生态学报,2001,21(9):1450-1456
[14]	Cho D S,Boermer R E. Canopies disturbance patterns and regeneration of Quercus species in two Ohio old-growth forest[J]. Vegetation, 1991,93:9-18
[15]	贺金生,刘峰,陈伟烈. 神农架地区米心水青冈林和锐齿槲栎林群落干扰历史及更新策略[J]. 植物生态学报,1999,41(8):887-892

The Dynamic Characteristics of the Seedling Bank of Quercus Community at Different Restoration Stages under the Disturbance of Forest Fire in Baotianman Nature Reserve

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References

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