| 桉树人工林和邻近天然林内土著的木本植物再生状况比较(英文) |
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| 作者姓名： | Shiferaw Alem Tadesse Woldemariam |
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| 作者单位： | Shiferaw Alem(Ethiopian Institute of Agricultural Research, Forestry Research Center, P.O. Box 30708, Addis Ababa, Ethiopia);Tadesse Woldemariam(Addis Ababa University, Department of Biology Education, P.O.Box 1176, Addis Ababa, Ethiopia)
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| 基金项目： | provided by the Canadian International Development Agency (CIDA) |
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| 摘 要： | 本文调查了桉树人工林和邻近天然林内土著的木本植物多样性、密度和物种组成。桉树人工林和邻近天然林内分别圈画出20个20m×20m样地,记录下每块样地内的物种名称、物种丰富度、植株直径和高度以及采集亚样方(4m2)内幼苗数目。本试验中,记录人工林内木本植物46种,邻近天然林内52种,分别来自36个科。人工林内,物种多样性(H’)为2.19,林下木本植物密度为3842株/hm2,幼苗密度为4151株/hm2;而天然林内的物种多样性、林下树木密度和幼苗密度分别为2.74,4122株/hm2和8101株/hm2。两种林分的木本植物物种组成相似性较高。研究还表明,桉树人工林适合于Millitia ferruginia和小果咖啡生长和再生,而对下层木本则不适合。
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| 关 键 词： | 自然森林 自然再生 种植园 木质物种差异 |
A comparative assessment on regeneration status of indigenous woody plants in Eucalyptus grandis plantation and adjacent natural forest |
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| Shiferaw Alem,Tadesse Woldemariam.A comparative assessment on regeneration status of indigenous woody plants in Eucalyptus grandis plantation and adjacent natural forest[J].Journal of Forestry Research,2009,20(1). |
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| Authors: | Shiferaw Alem Tadesse Woldemariam Ethiopian Institute of Agricultural Research Forestry Research Center POBox Addis Ababa Ethiopia Addis Ababa University |
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| Institution: | [1]Ethiopian Institute of Agricultural Research, Forestry Research Center, P.O. Box 30708, Addis Ababa, Ethiopia [2]Addis Ababa University, Department of Biology Education, P.O.Box 1176, Addis Ababa, Ethiopia |
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| Abstract: | Diversity, density and species composition of naturally regenerated woody plants under Eucalyptus grandis plantation and the adjacent natural forest were investigated and compared. Twenty plots, with an area of 20 m× 20 m for each, were established in both of E. Grandis plantation and adjacent natural forest, independently. In each plot, species name, abundance, diameter and height were recorded. Numbers of seedling were collected in five sub-plots (4 m2) within each major plot. A total of 46 species in the plantation, and 52 species in the natural forest, which belongs to 36 families were recorded. The diversity of species (H') is 2.19 in the plantation and 2.74 in the natural forest. The density of understory woody plant was 3842 stems/ha in the plantation and 4122 stems/ha in the natural forest. The densities of seedlings in the natural forest and the plantation were 8101 stems/ha and 4151 stems/ha, respectively. High similarity of woody species composition was found between the natural forest and the plantation. The E. Grandis plantation was found favoring the regeneration and growth of Millitia ferruginia and Coffea arabica in a much better way than other underneath woody species. |
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| Keywords: | E grandis natural forest natural regeneration plantation woody species diversity |
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