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首页> 外文期刊>Ecosystem Health and Sustainability >Effect of exclosure on woody species diversity and population structure in comparison with adjacent open grazing land the case of Jabi Tehnan district north western Ethiopia
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Effect of exclosure on woody species diversity and population structure in comparison with adjacent open grazing land the case of Jabi Tehnan district north western Ethiopia

机译：与邻近的裸地放牧地相比，禁牧对木本物种多样性和种群结构的影响-以埃塞俄比亚西北部的贾比德南地区为例

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ABSTRACTLand rehabilitation by area exclosure was the fastest and moderate approach of recovering degraded sites. However, the effect of exclosure on woody species parameters in Jabitehnan district, north-western Ethiopia has not been investigated. Therefore, the current study was conducted (i) to assess and compare diversity, composition and density of woody species in exclosure and adjacent open lands, and (ii) to analyze population structure as well as regeneration status of woody species. A random sampling method was employed to select a total of 40 sample plots (50m*50m). A total of 8 parallel transect lines were used inside and outside the exclosure land in each site for consecutive (50m interval) plot establishment.? Species diversity was 1.7 and 3.03 for WG, 1.1 and 2.94 for GW open and exclosures, respectively. Population structure of woody species in exclosures of both sites exhibited an inverted J shape which indicates good regeneration status, while in adjacent open grazing land it exhibited partial bell shape. Generally, exclosure provides various biophysical benefits better than adjacent open grazing lands. It is recommended to protect degraded lands by exclosure via integrating appropriate species and convert their diversity into use so as to develop their potential benefits on land restoration.
机译：ABSTRACTL和通过区域隔离进行恢复是恢复退化地点的最快和适度的方法。但是，尚未调查埃塞俄比亚西北部贾比泰南地区的开阔度对木本物种参数的影响。因此，目前的研究是（i）评估和比较排泄区和邻近开阔土地上木本物种的多样性，组成和密度，以及（ii）分析木本物种的种群结构和再生状况。采用随机抽样方法选择总共40个样地（50m * 50m）。在每个站点的避雷区内外共使用了8条平行样线，以连续（间隔50m）建立地块。 WG的物种多样性分别为1.7和3.03，GW敞开和暴露的物种多样性分别为1.1和2.94。在两个地点的边缘处，木本物种的种群结构呈现出倒J形，这表明其良好的再生状态，而在邻近的开阔放牧地带中，则呈现出部分钟形。通常，与邻近的开放放牧地带相比，避难所提供的各种生物物理效益更好。建议通过整合适当的物种进行排他性保护来保护退化土地，并将其多样性转化为使用，从而开发其对土地恢复的潜在利益。

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