浙江农林大学学报2017，Vol.34Issue(1)：104-111,8.DOI:10.11833/j.issn.2095-0756.2017.01.015
南方红豆杉修枝后生长与干形动态表现
Growth and stem form quality with pruning in Taxus wallichiana var. mairei
摘要
Abstract
For obtaining efficiency of high quality cultivat ed timber and to measure pruning influences on growth and stem form quality of Taxus wallichiana var. mairei, a pruning intensity test was established in Mingxi County, Fujian, China. An unpruned plantation was used as a control (ck) with three pruning intensity treatments of 0.3-relatively high, 0.4-relatively high, and 0.5-relatively high. The effect of annual dynamic change rules with the passage of time after pruning were revealed with an 11-year-old T. wallichiana var. mairei plantation, and then the pruning technology was optimized. Results showed that five years after pruning there were strong influences (P<0.05) on the growth and stem form traits with different pruning intensities; com-pared with the control, growth trait performance after pruning was more and more obvious over time. The func-tion, dynamic change law and time that significant differences appeared for growth traits changed with different pruning intensities(P<0.05). Pruning reduced the crown length ratio of T. wallichiana var. mairei. After prun-ing and compared to the control, changes in breast height form factor for pruning appeared lower then higher over time.DBH (diameter at breast height), tree height, volume, and breast height form factor of the 0.3-rela-tively high pruning intensity at a four year interval were significantly greater (P<0.05) than the control;whereas, the crown length ratio was significantly less (P<0.05). Thus, the optimal pruning combination for T. wallichiana var. mairei was 0.3, relatively high pruning intensity and a four-year interval period.关键词
森林经营学/南方红豆杉/人工林/修枝/生长/形质Key words
forest management/Taxus wallichiana var. mairei/plantation/pruning/growth/form quality分类
农业科技引用本文复制引用
欧建德,吴志庄..南方红豆杉修枝后生长与干形动态表现[J].浙江农林大学学报,2017,34(1):104-111,8.基金项目
中央财政林业科技推广示范资金项目 （）
