白泥山造林绿化技术研究

Afforestation Technology in White Soil Mountains

历时12 a试验研究,结果表明:在白泥土壤这一特殊立地上进行造林绿化时,桤木、大叶女贞、水杉、池杉、香樟、扁柏等较为适生。其中,桤木表现优为速生,11年生平均树高12.7 m,平均胸径15.9 cm,单株立木平均材积0.121 m3,具较高的生态效益和经济效益。试验同时表明:白泥土壤立地造林的主要关键技术是在选择适应性强树种的同时,采取在造林地开排水沟、大穴整地、客土栽植、及时抚育管理等配套技术措施,其造林成活率比常规技术造林提高30%～50%。

The experiment lasted for 12 years,the results showed： when afforestation was carried in the special white soil,Alnus cremastogyne,Ligustrun lucidum,Metasequoia glyptostroboides,Taxodium ascendens,Cinnamomum camphora,Platycladus orientalis and other trees species were suitable for this site.Which of them A.cremastogyne was a fast-growing species,average height of 11 years old trees was 12.7 m,average DBH was 15.9 cm,the average plant standing volume was 0.121 m3,and has high ecological and economic benefits.Experiment also showed that： the main and key technology of afforestation in white soil site was that when chose the adaptable trees species,it must take some supporting technical measures of opening drains in the plantations,clearing for a large hole,foreign soil planting,necessary tending and management,and so on.The survival rate of afforestation was more than conventional technologies by 30% to 50%.