Effects of dwarf bamboo, Fargesia nitida (Mitford) Keng f. ex Yi, on bark stripping by ungulates in a subalpine Abies faxoniana Rehder & E. H. Wilson forest, southwest China
Effects of dwarf bamboo, Fargesia nitida (Mitford) Keng f. ex Yi, on bark stripping by ungulates in a subalpine Abies faxoniana Rehder & E. H. Wilson forest, southwest China
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矮竹、Fargesia nitida (Mitford) Keng f 的作用。
DOI：
10.1134/s199542551305017x
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发表时间：
2013-09-01
影响因子：
0.8
通讯作者：
Ping, Tao Jian
中科院分区：
文献类型：
--
作者：
Jian, Wang Yong;Yu, Li Qing;Ping, Tao Jian
调查了中国西南高山冷杉林无毛竹(Fargesia nitida(Mitford)Keng F.ex yi)(B-)立地和林下毛竹优势(B+)立地被有蹄类动物剥皮的发生率和强度。B立地树木受损率高于B+立地。与其他树种相比，冷杉的剥皮现象明显增多。不同径级红豆杉树皮和枯枝的出现与立地矮化竹密度及树皮大小和树皮结构密切相关，以B立地小径级(10~40 cm)为害最多。褐飞虱在受害树木周围密度和盖度较高时，剥皮强度显著降低。因此，矮秆竹的分布对树种的剥皮有间接的负面影响。我们建议在考虑天然林的演替和更新时，应考虑矮化竹种的间接影响。
Incidence and intensity of bark stripping of trees by ungulates was investigated at no bamboo (Fargesia nitida (Mitford) Keng f. ex Yi) (B-) site and understory bamboo dominant (B+) site of a subalpine Abies faxoniana Rehder & E. H. Wilson forest, southwest China. The percentage of damaged trees in B-site was higher than in B+ site. Bark stripping obviously occurred more frequently on Abies faxoniana compared to other tree species. Appearance of stripped bark and dead stems of the trees in different size-classes of A. faxoniana strongly depended on the density of dwarf bamboo at the site, and also on the size and bark structure of the trees, with highest damage rates occurring on the smaller DBH classes (10–40 cm) in B-site. The bark stripping intensity of A. faxoniana decreased significantly with higher density and coverage of F. nitida around damaged trees. Therefore, there is an indirect negative effect of the distribution of dwarf bamboo, F. nitida, on bark stripping of tree species. We suggest the indirect effects of dwarf bamboo species should be taken into account while considering the succession and regeneration of natural forests.