Despite the wide use of indigenous browse plant species, there is almost no information on the rehabilitation of indigenous browse species following area exclosure (AE) established on communal grazing lands (CGL) in Southern Tigray. The objectives of this study were to assess the rehabilitation of browse plant species following AE establishment on CGL. A total of 61 and 59 plots of 10 × 10 m2 size were laid down at 50-m intervals along parallel line transects at AE and GCL, respectively. Data collected on vegetation attributes were subjected to analysis of t test (unequal variances) using R-software. The Shannon diversity index of the browse plant species was 1.25 and 0.81 in AE and CGL, respectively (P < 0.001). The overall population structure of browse plant species in the AE shows a reverse J-shaped population curve and “good” regeneration status, which reveals that the future communities may be sustained. Leaf biomass and basal area of browse plant species were significantly higher in the AE than in CGL (P < 0.001). After exclusion of grazing, AE was found to have positive effects on diversity and aboveground biomass of browse plant species. The study gives an understanding of the diversity, the pattern of population and regeneration of the browse plant species, which may help in the management and conservation of the species. Our results indicate that grazing exclusion is an effective management strategy to restore browse plant species. We concluded that the establishment of AE had a positive effect on the rehabilitation of browse plant species diversity and improved population structure and regeneration potentials of degraded grazing lands. Long-term monitoring and evaluation systems will be required to gain an informed understanding of the roles played by area exclosures in the rehabilitation and conservation of browse palnt species diversity.

中文翻译：

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在埃塞俄比亚南提格里的公共放牧地上建立禁猎区之后，恢复土著浏览植物物种，并提出保护意向

尽管广泛使用了本土浏览植物物种，但在提格南部南部的公共放牧地（CGL）上建立了区域禁闭区（AE）之后，几乎没有关于本土浏览物种恢复的信息。这项研究的目的是评估在CGL上建立AE后浏览的植物物种的恢复。沿AE和GCL的平行线样线以50-m的间隔分别布置了61个和59个10×10 m2大小的地块。使用R软件对有关植被属性的数据进行t检验（方差不相等）的分析。在AE和CGL中，浏览植物物种的Shannon多样性指数分别为1.25和0.81（P <0.001）。AE中浏览植物物种的总体种群结构显示出反向的J形种群曲线和“良好”的再生状态，这表明未来的群落可能会持续存在。AE中的浏览植物物种的叶片生物量和基面积显着高于CGL（P <0.001）。排除放牧后，发现AE对浏览植物物种的多样性和地上生物量具有积极影响。该研究使人们了解了浏览植物物种的多样性，种群格局和再生，这可能有助于该物种的管理和保护。我们的结果表明，放牧排除是恢复浏览植物物种的有效管理策略。我们得出的结论是，AE的建立对恢复浏览植物物种多样性以及改善退化草场的种群结构和再生潜力具有积极作用。将需要长期的监测和评估系统，以充分了解区域排泄物在恢复和保护浏览的皮草物种多样性中所起的作用。