摘要
对元江县引种 2 0余年的新银合欢进行了适应性调查 ,通过生长量与生物量、土壤及海拔高度适应能力、开花结实及自然更新习性等的分析 ,证实该树种在元江县具有良好的适应性 ,13～ 2 0年生新银合欢年平均生长量达 1 1～ 1 3m、胸径 1 0～ 1 3m。无论在生长量、生物量和开花结实等习性上均具有原产地和其他引种地的特性。可作为元江低海拔高度 (35 0～ 15 0 0m)干热河谷区的造林先锋树种。该树种天然更新能力强 ,用途广泛 ,一旦造林或更新成功 。
The performance of Leucaena leucocephala to Yuanjiang county of Yunnan province for over 20 years was investigated. The results of examining the growth increment, biomass, soil and adjustment to different altitudes, flowering, fruiting and natural regeneration implied the adaptability of this species to the site condition Yuanjiang county. The average annual growth of height and diameter of 13 to 20 years old plantation were 1 1～1 3 m and 1 0～1 3 cm respectively. The growth increment, biomass, flowering and fruiting of the introduced to Yuanjiang county, attained level of original growing site and other introduced areas. Leucaena leucocephala cv. Salvador could be a choice of pioneer species for reforestation of low elevation (350～1500 m) dry and hot valley areas of Yuanjiang. This species had promising regeneration capacity, could be utilized sustainably.
出处
《云南林业科技》
2002年第3期61-65,共5页
Yunnan Forestry Science and Technology
