湘南山区5个立地因子对楠竹生长的影响

分析了湖南常宁5种立地因子对楠竹平均胸径、平均竹高以及株数生长的影响。结果表明:(1)小地形部位、土层厚度与坡度对楠竹的生长影响较大,存在显著差异或极显著差异,而不同坡向与土壤类型对楠竹的生长则没有显著差异;(2)小地形部位的上坡不适合楠竹的生长而不宜栽种,其余,河滩、山冲(山洼)、下坡以及中坡均可栽种楠竹;(3)土层厚度以薄层土(40cm)不太适应于楠竹的生长,造林时应选择在中、厚层土壤上,最好是厚层土,尤其是高产竹林的营造更应如此;(4)酸性紫色土与石灰土两种土壤类型,阳坡与阴坡均适应于楠竹的生长,但阳坡,酸性紫色土上生长的楠竹相对更好。这些结论对同类地区的楠竹栽培有着重大的意义。

Effects of Several Site Factors on the Growth of Phyllostachys pubescens Mazel in Mountain Region of South Hunan

The study aimed to study the effects of 5 site factors about the diameter, height and culm number of thePhyllostachys pubescens Mazel, Through a survey of 28 sample plots, The results showed that:(1)The slope position ,soil thickness and slopness had the significant effects on the growth ofPhyllostachys pubescens Mazel, but the slope aspect and soil types had not significant effects on the growth of.Phyllostachys pubescens Mazel (2) The upper slope was not suitable for the growth of the Phyllostachys pubesc...