35杨2种造林方式对比试验  

Primary Report on the Comparative Experiment on the 2 Afforestation Methods of 35 Poplar

作　　者：曹国华 徐长柏 徐亚明 周凤鸣 教忠意[2] 

机构地区：[1]江苏省东台林场,江苏东台224242 [2]江苏省林业科学研究院,江苏南京211153

出　　处：《安徽农业科学》2009年第12期5725-5726,共2页Journal of Anhui Agricultural Sciences

基　　金：国家科技支撑计划项目(2006BAD09A04);江苏省科技成果转化专项资金项目(BA2006018)

摘　　要：[目的]比较植苗和插干2种造林方式对35杨生长的影响。[方法]选择健壮无病虫害的35杨苗木,植苗造林方式选取苗高大于3.5 m,胸径大于2.0 cm,进行3 m×8 m株行距常规植苗造林,插干造林方式采用带水扦插造林,栽植深度为80 cm,插条长90 cm。测定不同造林方式下35杨的树高和胸径,统计造林成活率。[结果]植苗造林方式的35杨平均成活率为89.25%,而插干造林方式的平均成活率为99.50%,比植苗造林方式高出10.25%,插干造林方式的35杨第1年和第2年的树高平均净生长量分别为3.75 m和3.60 m,比植苗造林方式的高出135.85%和9.09%,造林成本则降低了63.35%。[结论]插干造林具有造林成本低、成活率高的特点,可缩短造林时间,降低生产成本,提高经济效益。[Objective] The study aimed to compare with the effects of 2 afforestation methods of stock planting and cuttage on 35 poplar growth. [Method] The 35 poplar seedlings with stmngness and no diseases and insect pests were selected in the test. By using stock planting afforestation method, the seedlings with height of above 3.5 m and breast diameter of above 2.0 cm were selected to make for routine stock planting afforestation with 3 m × 8 m strain-mw spacing. By using the cuttage afforestation methods, the cuttage forestation with water was used, with the planting depth of 80 cm and the cutting length of 90 cm.The tree height and breast diameter of 35 poplar and afforestation survival rate were measured under different afforestation methods. [Result] The average survival rate of 35 poplar by stock planting afforestation method was 89.25% , but that by cuttage afforestation method was 99.50% and it was 10.25% higher than the stock planting afforestation method. The average net growth of tree height in 35 poplar by cuttage afforestation method were 3.75 m and 3.60 m resp. in first and second year, being 135.85% and 9.09% higher than the stock planting afforestation method and the afforesting cost was decreased by 63 .35% . [Conclusion] The cuttage afforestation had character of low afforest cost and high survival rate, which shortened the afforestation time, decreased productive cost and increased the economic benefit.

关 键 词：35杨 植苗造林 插干造林 生长 

分 类 号：S725.7[农业科学—林木遗传育种]