海拔对毛竹林经济性状的影响研究

在毛竹分布南缘的中亚热带与南亚热带气候过渡区,选择土壤、坡度、坡向、经营水平等一致的3个海拔梯度毛竹林,对竹林经济性状随海拔的变化规律进行了研究,结果表明:相同径级立竹质量随海拔升高而降低,竹壁厚度是主要影响因子。竹材产量随海拔升高而显著提高,立竹胸径是竹材产量变化的主导因子;竹笋平均个体质量、产量和品质随海拔升高而提高。竹笋平均个体质量是竹笋产量变化的主要影响因子,海拔对竹笋品质影响主要反映在总糖、可溶性糖、P、Fe、含水率、可食比例随海拔升高而提高,纤维、热量、灰分、Ca随海拔升高而降低。

Influence of Altitude on Economic Property of Moso Forest

The research chose the moso forests at 3 different altitudes with same soil type, slope gradient, slope aspect and management level, which are located in the transitional area from middle subtropical area to south subtropical area, to study how the economic property of bamboo forest changes with altitudes. The results showed that the weight of the standing moso culm with the same DBH declined with the altitude increasing, and the main influencing factor was wall thickness of bamboo. Bamboo culm yield remark...