Effect of Environmental Gradients on the Quantity and Quality of Fallen Logs in Tsuga longibracteata Forest in Tianbaoyan National Nature Reserve, Fujian Province, China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2013 > Vol10 No.6

	Effect of Environmental Gradients on the Quantity and Quality of Fallen Logs in Tsuga longibracteata Forest in Tianbaoyan National Nature Reserve, Fujian Province, China
	YOU Hui-ming ; HE Dong-jin ; YOU Wei-bin ; LIU Jin-shan ; CAI Chang-tang
刊名	Journal of Mountain Science
	2013-12
卷号	10 期号:6 页码:1118-1124
关键词	Fallen logs Distribution patterns Topography Human disturbance Tianbaoyan National Nature Reserve
通讯作者	HE Dong-jin
英文摘要	We investigated the quantity and quality of fallen logs in different Tsuga longibracteata forest communities in the Tianbaoyan National Nature Reserve. We used redundancy analysis to determine the spatial distribution of fallen logs in the different forest communities and to analyze the relationships among stand structure, topographic factors and human disturbance. The volume, covered area, mean log length and number of fallen logs differed significantly among forest types (P < 0.05), but mean diameter at breast height showed no significant difference (P > 0.05). The log volume and covered area in different forest types showed the following trend: T. longibracteata pure forest < T. longibracteata + Oligostachyum scabriflorur < T. longibracteata + hardwood < Rhododendron simiarum + T. longibracteata < T. longibracteata + Phyllostachys heterocycla pubescens. The spatial distribution patterns of logs quantity and quality indicated that log volume and covered area were strongly affected by environmental factors in the following order: human disturbance > elevation > slope position > bole height > tree height > slope aspect > density > basal area > slope gradient. The relative contribution of environmental variables on the total variance was topography (76%) > disturbance (42%) > stand structure (35%). Topography and disturbance combined explained 83% of the variance. Fallen logs quantity and quality were negatively related to elevation and slope position, and positively associated to human disturbance. The log volume decreased from northern to southern slopes. Environmental factors had the highest impact on class I (slightly decayed), and lowest impact on class V (highly decayed).
收录类别	SCI
公开日期	2013-11-26
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/6540]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2013_Vol10 No.6
推荐引用方式 GB/T 7714	YOU Hui-ming,HE Dong-jin,YOU Wei-bin,et al. Effect of Environmental Gradients on the Quantity and Quality of Fallen Logs in Tsuga longibracteata Forest in Tianbaoyan National Nature Reserve, Fujian Province, China[J]. Journal of Mountain Science,2013,10(6):1118-1124.
APA	YOU Hui-ming,HE Dong-jin,YOU Wei-bin,LIU Jin-shan,&CAI Chang-tang.(2013).Effect of Environmental Gradients on the Quantity and Quality of Fallen Logs in Tsuga longibracteata Forest in Tianbaoyan National Nature Reserve, Fujian Province, China.Journal of Mountain Science,10(6),1118-1124.
MLA	YOU Hui-ming,et al."Effect of Environmental Gradients on the Quantity and Quality of Fallen Logs in Tsuga longibracteata Forest in Tianbaoyan National Nature Reserve, Fujian Province, China".Journal of Mountain Science 10.6(2013):1118-1124.