北沟林场精品流域区华北落叶松林分结构研究

Fine valley area Larix principis-rupprechtii stands structure research of Beigou forest

通过对北沟林场精品流域区华北落叶松林分结构进行研究,结果表明:在树种组成复杂程度上,落阔混交林大于华北落叶松纯林,而且落阔混交林的树种组成比纯林更加合理,结构更加稳定,在空间利用上也更加充分;在水平结构上,各树种直径大小分布均匀程度比较:落阔混交林大于华北落叶松纯林;在垂直结构上,落阔混交林有分层现象,但差异不明显,而华北落叶松纯林无明显分层。

Through the Beigou Forest larch stands studies, the results showed that. the complexity of the species composition, drop and broad mixed forest〉 pure larch forest,the drop and broad mixed forest structure is more stable, and more fully utilize the space, in the horizontal structure of each tree diameter size distribution, uniformity of comparison： drop and broad mixed forest〉 pure larch forest, in the vertical structure, drop and broad mixed forest layered fall relatively obviously, while pure larch forest no significant stratification.