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| 奥地利两块基因资源保育林内英国紫杉生态条件与保护现状比较 | |
| 作者单位： | Institute of Silviculture Department of Forest and Soil Sciences，University of Natural Resources and Applied Life Sciences，Peter-Jordan Str. 82，A-1190，Vienna，Austria.，Institute of Silviculture，Department of Forest and Soil Sciences，University of Natural Resources and Applied Life Sciences，Peter-Jordan Str. 82，A-1190，Vienna，Austria.，Institute of Silviculture，Department of Forest and Soil Sciences，University of Natural Resources and Applied Life Sciences，Peter-Jordan Str. 82，A-1190，Vienna，Austria.，Institute of Silviculture，Department of Forest and Soil Sciences，University of Natural Resources and Applied Life Sciences，Peter-Jordan Str. 82，A-1190，Vienna，Austria. |
| 摘 要： | 在奥地利及其他多数欧洲国家英国紫杉濒临灭绝,被列为濒危树种.基于不同地理位置的自然群落的比较,调查了奥地利两块基因资源保育林内英国紫杉的空间结构、更新状况及可采取的保育方法等.每块样地圆杆材分布变化较大.林地Stiwollgraben内紫杉单位面积植株总数,平均胸径和平均株高分别为492 n·hm-2, 8.8 cm and 6.3 m;Leininger Riese仅为45 n·hm-2, 16.3 cm and 7.6 m.Stiwollgraben群落紫杉长势较好,健康植株79%以上,而Leininger Riese群落的健康植株低于49%.两块样地内紫杉更新模式差异较大,与其各自的树龄动态分布相一致.1年龄幼树相比较,Stiwollgraben林地内紫杉密度为13019株/公顷,而Leininger Riese仅为1368株/公顷.Leininger Riese林地内未发现树高51-150cm的幼树,而Stiwollgraben林地内树高30-150cm的幼树鲜能见到.这种情况下,英国紫杉林的保育需要管理完善的保护区、采伐期间采取长期轮伐,同时还要防止牲畜啃食和减轻种间竞争,以此来增强红豆杉的生存能力.图4表4参41. |
| 关 键 词： | 濒危物种 紫杉 种群结构 森林经营 针叶树 |
Comparison of ecological condition and conservation status of English yew population in two Austrian gene conservation forests |
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| Authors: | DHAR Amalesh RUPRECHT Herwig KLUMPP Raphael VACIK Harald |
| Abstract: | |
| Keywords: | Endangered species Taxus baccata Population structure Forest management Conifers |
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