摘要
按照典型抽样的方法,在黔北山区慈竹Sinocalamus affinis纸浆林造林地设置28个样地调查竹丛的立竹株数、胸径、竹高等生长指标,以及海拔高度、小地形部位、坡度、坡向、土壤厚度等主要立地因子。对调查的样地数据进行对比分析、平均值的差异显著性t检验和相关分析,结果表明,海拔高度和小地形部位是影响慈竹生长的关键立地因子,坡度、坡向和土层的中、厚程度对慈竹生长的影响较小,其t检验未达显著水平。因此,黔北地区营造慈竹纸浆林,宜选择海拔800m以下、位于山冲山洼、坡下部和坡中部、土层中厚的立地作为造林地;而海拔1 000m以上,位于山顶山脊和坡上部的立地则不宜选作慈竹纸浆林造林地。
Using a method of the typical sampling, 28 plots of Sinocalamus affinis pulp plantation at mountain area of north Guizhou were surveyed, and each plot included about 10 bamboo clump. The item surveyed included bamboo number of per bamboo clump, diameter and height per bamboo, and altitude, slope position, slope gradient, slope aspect and soll thickness per plot. Data of the different plots were compared, t-test of average and correlative analysis between growth of Sinocalamus affinis and site factors were carried out, the results showed that altitude and slope position were key site factors effecting growth of Sinocalamus affinis, and influence of slope gradient, slope aspect and middle and thick degree of soil was fewer. So it was appropriate that those sites below 800m of altitude and middle position of hill- side, and more than middle thickness of soil were selected as planting sites for establishing Sinocalamus affinis pulp plantation at mountain region of north Guizhou. The sites above 1 000m of altitude, top and upper position of hillside were not suitable for establishing Sinocalamus affinis pulp plantation.
出处
《山地农业生物学报》
2007年第5期397-402,共6页
Journal of Mountain Agriculture and Biology
基金
贵州省攻关项目[(2005)3017]
赤天化纸业公司竹类研究项目资助
关键词
慈竹
立地因子
生长指标
海拔高度
土层厚度
Sinocalamu affinis
site factor
growth factor
altitude
soil thickness
