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首页> 外文期刊>International Journal of Forestry Research >Woody Species Structure and Regeneration Status in Kafta Sheraro National Park Dry Forest, Tigray Region, Ethiopia
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Woody Species Structure and Regeneration Status in Kafta Sheraro National Park Dry Forest, Tigray Region, Ethiopia

机译：木质物种结构和再生状态在Kafta Sheraro国家公园干林，埃塞俄比亚

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The study was conducted in Kafta Sheraro National Park (KSNP) dry woodland natural forest located in Kafta Humera and Tahitay Adiyabo weredas (districts), Western and Northwestern Zones of Tigray regional governmental state, North Ethiopia. The objective of the study was to explore the floristic composition, structure, and regeneration of woody species in the home of Loxodonta africana L., Hippotragus equinus, Anthropoides virgo, Ourebia ourebi, Crocuta crocuta, Tragelaphus strepsiceros, Phacochoerus africanus, and unidentified crocodile and fish species. In the park, the vegetation ecology has not been studied up to date which is necessary for conservation. The systematic sampling technique was used to collect vegetation and human disturbance (presence and absence) data from August to December 2018. The vegetation data were collected from 161 plots each with a size of 400?m2 (20?m?×?20?m) for tree/shrub while subplots of size 100?m2 (10?m?×?10?m) and 25?m2 (5?m?×?5?m) for sapling and seedling, respectively, were established in the main plots. Individual tree and shrub diameter at breast height (DBH) ≥2.5?cm and height?≥?2?m were measured using tape meter and clinometer, respectively. Diameter at breast height (DBH), frequency, density, basal area, and importance value index (IVI) were used for vegetation structure description while the density of mature trees, sapling, and seedling was used for regeneration. A total of 70 woody species (46 (65.7%) trees, 18 (25.7%) shrubs, and 6 (8.6%) tree/shrub) were identified. The total basal area and density of 79.3?±?4.6?m2·ha?1 and 466?±?12.8 stems·ha?1, respectively, were calculated for 64 woody species. Fabaceae was the most dominant family with 16 species (22.9%) followed by Combretaceae with 8 species (11.4%). The most dominant and frequent species throughout the park were Acacia mellifera, Combretum hartmannianum, Terminalia brownii, Balanites aegyptiaca, Dichrostachys cinerea, Acacia senegal, Acacia oerfota, Boswellia papyrifera, Ziziphus spina-christi, and Anogeissus leiocarpus. Abnormal patterns of selected woody species were dominantly identified. The regenerating status of all the woody plant species was categorized as “fair” (18.75%), “poor” (7.81%), and “none” (73.44%). There was a significant correlation between altitude, anthropogenic disturbance (grazing and fire frequency), and density of seedling, sapling, and mature trees. But there was no correlation between gold mining and regeneration population. However, there is a good initiation for the conservation of the park; still, the vegetation of the park was threatened by human-induced fire following intensive farming, gold mining, and overgrazing. Therefore, the study area was the habitat for the population of the African elephant; species with low importance value indices and lack or having few seedling and sapling stage should be prioritized for conservation, and their soil seed banks should be studied further.
机译：该研究在Kafta Sheraro国家公园（KSNP）干林地自然森林中进行，位于Kafta Humera和Tahitay Adiyabo Weredas（地区），西北地区，西北地区政府州，北埃塞俄比亚。该研究的目的是探索洛克多塔非洲人L.，Hippotragus Equinus，人类维戈，Ourebia Ourebi，Crocuta Crocuta，Tragaphus strepsiceros，Phacochoerus Africanus和未识别的鳄鱼和未识别的鳄鱼和未识别的鳄鱼和未识别的鳄鱼和未识别的鳄鱼和未识别的鳄鱼）鱼类。在公园内，植被生态学尚未研究迄今为止的保护。系统采样技术用于从2018年8月收集植被和人为干扰（存在和缺席）数据。植被数据从161个块收集，每个尺寸为400？M2（20？M？×20？M.为树/灌木，在主要的尺寸为100？M2（10Ωm≤x≤10μm）和25μm2（5Ωm≤x≤1.5μm）的时，分别为树苗和幼苗。情节。在乳房高度（DBH）≥2.5Ω厘米和高度的单个树和灌木直径分别使用胶带表和阈值测量≥2μmΩ·2μm。乳房高度（DBH）的直径，频率，密度，基础区域和重要性值指数（IVI）用于植被结构描述，而成熟树木，树苗和幼苗的密度用于再生。鉴定了总共70种木本（46（65.7％），18（25.7％）灌木和6（8.6％）树/灌木）。总基面积和密度为79.3？±4.6？m2·ha？1和466？±12.8个茎·ha·ha？1分别计算64木质物种。 Fabaceae是最多的主要家庭，16种（22.9％），其次是梳子群，其中8种（11.4％）。整个公园中最占优势和频繁的物种是Acacia Mellifera，Combretum Hartmannum，organiabrownii，Balanites Aegyptiaca，Dichrostachys Cinerea，金合欢塞内加尔，金合欢Oterfota，Boswellia Papyrifera，Ziziphus Spina-Christi和Anogeissus Leiocarpus。所选木质物种的异常模式是占主导地位的。所有木质植物物种的再生状态分为“公平”（18.75％），“差”（7.81％）和“无”（73.44％）。高度，人为干扰（放牧和火频）与幼苗密度有显着相关性，幼苗，树苗和成熟树木。但金矿和再生人口之间没有相关性。但是，对公园的保护有很好的启动;尽管如此，在密集的农业，金矿和过度灌注之后，公园的植被受到人类诱发的火灾威胁。因此，研究领域是非洲大象人口的栖息地;应优先考虑具有低重视值指数和缺乏或幼苗和树苗阶段的物种进行保护，并进一步研究其土壤种子库。

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