Caractérisations Structurale, Floristique Et Biomasse Ligneuse Du Peuplement À Hagenia abyssinica Du Parc National De Kahuzi-Biega (Rift Albertin, RDC)
Caractérisations Structurale, Floristique Et Biomasse Ligneuse Du Peuplement À Hagenia abyssinica Du Parc National De Kahuzi-Biega (Rift Albertin, RDC)
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Caractérisations Structurale、Floristique Et Biomasse Ligneuse Du Peuplement À Hagenia abyssinica Du Parc National De Kahuzi-Biega（裂谷艾伯丁，RDC）
DOI：
10.19044/esj.2016.v12n15p189
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Amani Christian
中科院分区：
文献类型：
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作者：
Imani Mugisho Gérard;Zapfack Louis;Mangambu Mokoso Jean De Dieu;Penedimanja Pancrace;Mwanga Mwanga Ithe Jean;Boyemba Faustin;Amani Christian
深海海根是艾伯丁裂谷山地森林的特色树种。在Kahuzi Biega国家公园，这种物种被发现在海拔2000到2600米之间。本研究旨在通过提供其区系组成、结构和生物量的解释来表征Hagenia单种森林。数据来自3个不同地点的9个不同地块，每个地块1公顷（Tshivanga海拔2000-2250米；Mugabe和Kasirusiru海拔2400-2600米）。树径≥10cm、树高、枯死个体和幼芽等参数对土壤有一定的润湿作用。结果表明：物种丰富度极低，在8 ~ 24种之间变化（p < 0.05, Df = 35）；比密度为565±121只。丰富度随Hagenia物种密度的增加而降低。相似度分析揭示了地点/海拔对物种组成的影响。在海拔2000 ~ 2200 m之间，种群的直径结构呈现出回归动态，其中Hagenia标本被Sapium ellipticum、Macaranga neomilbraediana、Neoboutonia macrocalyx等次生林物种标本所取代。海拔2400 ~ 2600 m之间，Hagenia幼芽呈递进动态，无死亡（χ2 = 487, p < 0.001）。平均木质生物量估计为108吨/公顷。随着Hagenia密度的降低和植被异质性的增加，这种变化也在增加。该地区的人为干扰和气候变化的影响可能是在Kahuzi-Biega国家公园观察到的这一种群变异的原因。
Hagenia abyssinica is a characteristic species of mountain forests in the Albertine Rift. In Kahuzi Biega National Park, the species is found between 2000 and 2600 m altitude. This study intended to characterize Hagenia monospecific forest by providing an account for its floristic composition, structure and biomass. Data were collected from 9 different plots of 1 hectare each located in 3 different sites (Tshivanga 2000-2250m asl; Mugabe and Kasirusiru 2400-2600m asl). Parameters including tree diameter ≥ 10cm, height, dead individuals and young shoots of Hagenia abyssinica were wetting the plot. The results showed that species richness was significantly low, varying between 8-24 species (p < 0.05, Df = 35); while the specific density was 565 ± 121 individuals. The Richness decreased with the increment of the species density of Hagenia. The similarity analysis revealed the influence/impact of the site/altitude on the species composition. The diametric structure showed a regressive dynamism within the population found between 2000 and 2200 m altitude, in which Hagenia specimens were replaced by the specimens of secondary forest species such as Sapium ellipticum, Macaranga neomilbraediana, Neoboutonia macrocalyx. Whereas, between 2400-2600 m altitude, there was a progressive dynamism with several Hagenia young shoots, with no mortality (χ2 = 487, p < 0.001). The average woody biomass was estimated at 108t / ha. This increased as Hagenia density decreased and vegetation became heterogeneous. Human disturbance and climate change effects in the region, could be the causes of variability observed in this population in the Kahuzi-Biega National Park.
Taguchi,F.：“三种毛竹物种线粒体 DNA 的种内和种间变异”《竹子杂志》。
DOI：
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发表时间：
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期刊：
影响因子：
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作者：
通讯作者：
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影响因子：
64.8
作者：
Lewis, Simon L.;Lopez-Gonzalez, Gabriela;Woell, Hannsjoerg
通讯作者：
Woell, Hannsjoerg