摘要
按照典型抽样法,在重庆梁平篌竹产区设置28个样地,调查立竹度、胸径、竹高及主要立地因子;在标准地调查的基础上,应用多种数学模型对篌竹地上生物量进行相关性分析,建立了篌竹地上生物量回归模型,利用生物量模型计算各样地地上生物量,并分析各立地因子对篌竹地上生物量的影响。结果表明:坡向、坡度、土壤厚度及腐殖质层厚度对篌竹地上生物量具有显著或极显著影响;海拔、坡位对篌竹地上生物量有一定影响,但都未达到显著水平。篌竹更适合在背风向阳、土壤肥厚、低海拔斜坡上生长。
Using a method of the typical sampling, 28 plots ofPhyllostachys nidularia Munro in north of Chongqing were surveyed. The items surveyed included bamboo number of per plot, DBH and height per bamboo, and main site factors. Based on the surveys of the standard bamboo, the correlation models of the aboveground biomass of Ph. nidularia were carried out by using many different mathematical models and corresponding correlation models were set up. The aboveground biomass of per plot was calculated by the optimum model. ANOVA of aboveground biomass of Ph.nidularia and site factors showed that aspect, slope degree, soil thickness and humus thickness had the significant effects on the aboveground biomass of Ph.nidularia. The elevation, slope position had influence on aboveground biomass of Ph.nidularia, but did not reach significant level. The forestation site of P nidularia should be selected at the sunny slope and the slowly varied slope with lower elevation, and the soil thickness should kept above 40 cm.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2012年第4期70-74,共5页
Journal of Central South University of Forestry & Technology
基金
国家"十二五"科技支撑项目
竹子优良种质选育技术研究与示范(2012BAD23B05)
关键词
篌竹
立地因子
地上生物量
数学模型
Phyllostachys nidularia Munro
site factor
aboveground biomass
mathematical model