闽北乡土阔叶树幼年生长与立地互作效应

利用设置在福建省建瓯市的闽北乡土阔叶树种试验示范林测定材料 ,研究其早期生长表现差异、对立地的反应敏感性及与立地互作等。结果表明 ,不同阔叶树种的早期生长差异巨大 ,其中南酸枣和光皮桦的早期生长最为迅速 ,火力楠、马褂木、乳源木莲、枫香、丝栗栲次之 ,观光木、罗浮栲和闽粤栲等生长相对较缓。研究发现 ,多数落叶阔叶树种的高径生长对立地条件反应敏感 ,而一些常绿阔叶树种对立地的反应则较为迟钝。统计分析结果揭示 ,不仅存在显著的树种效应和立地效应 ,而且树种与立地的互作效应也非常显著 ,不同阔叶树种的遗传稳定性差异较大。为达到阔叶树种与立地环境的优化配置 ,制定了不同阔叶树种的立地选择原则

Interaction Effect between the Juvenile Growth of Indigenous Broadleaved Tree and the Site in North Fujian

The results showed that the growth differences of various broadleaved tree species were great at the early stage,the early growth of Choerospondias axillaris and Betula luminifera was fastest,that of Michelia macclurei,Liriodendron chinense,Manglietia yuyuanensis,Liquidambar formosana, and Castanopsis fargesii came second,that of Tsoongiodendron odorum,C.fabri,and Castanopsis fissa was accordingly relatively slow.The research result showed that the reactions of most deciduous broadleaved tree species height and diameter growth to the site condition were sensitive,whereas reactions of some evergreen broadleaved tree species to the site were relatively slow.