摘要
通过在砚山县铳卡农场对墨西哥柏、郭芬柏、冲天柏和杜仲 4个不同树种以及不同的造林密度、施肥措施育苗措施与喷洒云大-120处理等 5个因素的对比试验, 其幼树期 (3年生) 的试验结果表明: 树种对林木的生长量、生物量及造林保存率影响显著, 其他因素对林木生长的影响被树种的影响所削弱。同一树种在其他不同处理间的差异较明显, 参试的墨西哥柏、郭芬柏、冲天柏和杜仲的造林技术措施的最佳组合分别是A1B2C2D1E2A2B1C2D2E1、A3B1C3D1E2和A4B1C4D2E2。3年生墨西哥柏最佳组合的树高为 3 4m、地径 4 8cm、冠幅 1 09m,生物量为 29 348t/hm2; 冲天柏最佳组合的树高为 2 66m、地径 3 88cm、冠幅 0 74m、生物量为 19 00t/hm2; 郭芬柏最佳组合的树高 2 42m、地径 3 73cm、冠幅 0 87m、生物量为 18 548t/hm2。预计在滇东南岩溶山区选择墨西哥柏、冲天柏和郭芬柏, 采用最佳技术措施组合造林, 能取得良好的生态效益和一定的经济效益。
Comparative silviculture experiments of five factors such as different species including Cupressus lusitanica,C.goveiana,C.duclouxiana and Eucommia ulmoides, different planting density, different fertilizing treatment, different seedling raising measure and spraying with Yunda-120 plant growth regulator were carried out at Chongka farm of Yanshan county. The experimental results on three years old saplings showed that the species produced quite significant effect on increment, biomass and remaining ratio; other factors' influences on tree growth were weakened by species. For the same species, there was significant difference between treatments. The optimum treatment combination of tested species Cupressus lusitanica,C.goveiana,C.duclouxiana and Eucommia ulmoides was A_(1)B_(2)C_(2)D_(1)E_(2), A_(2)B_(1)C_(2)D_(2)E_(1), A_(3)B_(1)C_(3)D_(1)E_(2) and A_(4)B_(1)C_(4)D_(2)E_(2). For three years old Cupressus lusitanica, the tree height, DBH, crown width and biomass of the optimum combination were 3.4 m, 4.8 cm, 1.09 m and 29.348 t/hm^(2) respectively; that for C.duclouxiana were 2.66 m, 3.88 cm, 0.74 m and 19.000 t/hm^(2);that for C.goveiana were 2.42 m, 3.73 cm, 0.87 m and 18.548 t/hm^(2). It is estimated that choosing Cupressus lusitanica,C.goveiana and C.duclouxiana, adopting the optimum technical combination of each species, promising ecological benefit and economic benefit can be obtained.
出处
《西部林业科学》
CAS
2004年第4期36-40,共5页
Journal of West China Forestry Science
基金
云南省"九.五"重点攻关课题"滇东南岩溶山区生态经济林优良树种选择及营造技术试验示范"的研究内容之一
关键词
滇东南岩溶山区
墨西哥柏
郭芬柏
冲天柏
杜仲
造林试验
karst area of southeast Yunnan
Cupressus lusitanica
C.goveiana
C.duclouxiana
Eucommia ulmoides
silviculture experiment
