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Estructura y composición florística de la vegetación en proceso de restauración en los Cerros Orientales de Bogotá (Colombia)

机译:波哥大东山(哥伦比亚)恢复中的植被的结构和植物组成

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The structure, richness and floristic composition of the vegetation at a site in the Eastern Hills of Bogotá were analyzed in order to assess the efficacy of ecological restoration strategies applied in the area, and identify ways to optimize restoration efforts. Land cover types were determined and vegetation was sampled using 50 x 2 m plots in which woody individuals ≥ 0.30 m in height were measured. A total of 7604 individuals belonging to 106 species and 46 families were found. The exotic forest plantation cover was the largest in the area. Dense shrublands had the highest species richness, followed by forest plantations, abandoned pastures and open shrublands. Native species accounted for 51% of all individuals inventoried. The herbaceous and shrub strata included 85% of all individuals, whereas 92% had a DBH ≤ 12 cm. The species with the highest importance values were Acacia decurrens , Acacia melanoxylon and Eucalyptus globulus in forestry plantations, Fuchsia boliviana , Varronia cylindrostachy a and Ulex europaeus in dense shrublands, Prunus serotina, Miconia squamulosa and Acacia decurrens in open shrublands and Eucalyptus globulus, Baccharis latifolia and Sambucus nigra in abandoned pastures. The vegetation is in the initial to intermediate stages of secondary forest succession. Nevertheless, the persistence of exotic and invasive species highlights the need for continued management in the area. Exotic tree plantations have facilitated the regeneration of the vegetation, although soil analyses are recommended to improve efficiency in the selection of native speciesfor introduction. Varronia cylindrostachya, Miconia squamulosa, Piper bogotensis and Baccharis latifolia are key re-colonizers in succession.
机译:分析了波哥大东部山丘某个地点的植被的结构,丰富程度和植物区系,以评估该地区采用的生态恢复策略的效力,并确定优化恢复工作的方式。确定了土地覆盖类型,并使用50 x 2 m的地块对植被进行了采样,其中测量了高度≥0.30 m的木本个体。共发现7604个人,属于106个物种和46个科。异国情调的人工林覆盖面积是该地区最大的。茂密的灌木丛物种丰富度最高,其次是人工林,废弃的牧场和开放的灌木丛。本地物种占清单动物总数的51%。草本层和灌木层占所有个体的85%,而92%的DBH≤12 cm。具有最高重要性值的物种是林业种植园中的倒伏金合欢,黑合欢和桉树,重密灌木地的紫红色的紫罗兰,圆环伏地黄和欧洲紫罗兰,开阔灌木的桃李,细叶刺槐和倒刺金合欢和废弃草场中的黑接骨木。植被处于次生森林演替的初期到中期。然而,外来和入侵物种的持续存在凸显了对该地区进行持续管理的必要性。外来的人工林促进了植被的再生,尽管建议对土壤进行分析以提高引入当地物种的选择效率。 varronia cylindrostachya,Miconia squamulosa,Piper bogotensis和Baccharis latifolia接连成为主要的定殖剂。

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