3种楠木造林生长效果比较研究

Comparative Study on the Growth of Three Tree Species of Lauraceae Afforestation

为了选择适宜的阔叶造林树种,开展琼楠、大叶楠和闽楠造林对比试验,研究不同楠木品种生长情况,结果表明:大叶楠和闽楠保存率高于琼楠,大叶楠和闽楠的树高和胸径均大于琼楠,大叶楠、闽楠与琼楠之间的保存率、树高和胸径均存在显著或极显著差异,大叶楠和闽楠之间的保存率、树高和胸径比较接近,差异不明显。大叶楠和闽楠均适宜在闽清美菰国有林场生长。

In order to select suitable broad-leaved tree species for afforestation,comparative tests were carried out on Beitschmiedia intermedia,Machilus kusanoi and Phoebe bournei afforestation to study the growth of different Nanmu(Phoebe)Species.The results displayed that the preservation rate,tree height and DBH of M.kusanoi and P.bournei were larger than that of B.intermedia,showing significant or extremely significant differences in three items.But these three items of M.kusanoi were close to those of P.bournei,and the differences were not obvious.It is concluded that M.kusanoi and P.bournei are suitable for growth in Minqing Meigu State-owned Forest Farm.