Given the large bamboo resource base with considerable potential to act as an important carbon sink, Ethiopia has included bamboo in the national Reducing Emissions from Deforestation and Forest Degradation and enhancing forest carbon stocks (REDD+) and Clean Development Mechanisms (CDM) programs. However, little is known about the carbon stock and sequestration potential of bamboo forests. As a result, this research was conducted to quantify the carbon sequestration and storage capacity of Oxytenanthera abyssinica forests in the Lower Beles River Basin, northwestern Ethiopia. To this end, a total of 54 circular plots, each measuring 100 m2 with a radius of 5.64 m, were established to conduct the inventory in Assitsa and Eddida bamboo forests, the typical bamboo sites in Lower Beles River Basin. Biomass accumulation of bamboo was estimated using an allometric equation based on diameter at breast height (DBH) and age. Soil samples were taken from two different soil depths (0–15 and 15–30 cm) to determine soil organic carbon. Results indicate that the mean biomass of the bamboo forests in the study area accounted for about 177.1 $$\pm$$ 3.1 Mg ha−1. The mean biomass carbon and soil organic carbon stock of the bamboo forests were 83.2 $$\pm$$ 1.5 Mg C ha−1 and 70 $$\pm$$ 1.7 Mg C ha−1, respectively. Therefore, the mean carbon stock of the O. abyssinica bamboo forests was 152.5 $$\pm$$ 2.5 Mg C ha−1 to 559.8 $$\pm$$ 9.0 ton CO2 ha−1. This study highlights the importance of assessing bamboo’s carbon stock and sequestration potential for enhancing its role in climate change mitigation and sustainable resource management. The O. abyssinica bamboo forests of the study area have significant carbon stock and sequestration potential. Therefore, sustainable management of these crucial vegetation resources will enhance their role in providing ecosystem services, including climate change mitigation.

中文翻译：

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埃塞俄比亚西北部下贝莱斯河流域 Oxytenanthera abyssinica 森林的生物量、碳储量和封存潜力

鉴于巨大的竹子资源基础具有作为重要碳汇的巨大潜力，埃塞俄比亚已将竹子纳入国家减少森林砍伐和森林退化所致排放量以及提高森林碳储量 (REDD+) 和清洁发展机制 (CDM) 计划。然而，人们对竹林的碳储量和固存潜力知之甚少。因此，本研究旨在量化埃塞俄比亚西北部下贝莱斯河流域的 Oxytenanthera abyssinica 森林的碳固存和储存能力。为此，共建立了 54 个圆形地块，每个地块面积为 100 m2，半径为 5.64 m，在下贝莱斯河流域的典型竹林 Assitsa 和 Eddida 竹林中进行清查。使用基于胸高直径 (DBH) 和年龄的异速生长方程估计竹子的生物量积累。土壤样品取自两种不同的土壤深度（0-15 和 15-30 厘米），以确定土壤有机碳。结果表明，研究区竹林的平均生物量约为 177.1 $$\pm$$ 3.1 Mg ha−1。竹林的平均生物量碳和土壤有机碳储量分别为 83.2 $$\pm$$ 1.5 Mg C ha−1 和 70 $$\pm$$ 1.7 Mg C ha−1。因此，O. abyssinica 竹林的平均碳储量为 152.5 $$\pm$$ 2.5 Mg C ha−1 至 559.8 $$\pm$$ 9.0 吨 CO2 ha−1。本研究强调了评估竹子的碳储量和封存潜力的重要性，以增强其在减缓气候变化和可持续资源管理中的作用。O。研究区的 abyssinica 竹林具有显着的碳储量和固存潜力。因此，对这些重要植被资源的可持续管理将增强它们在提供生态系统服务（包括减缓气候变化）方面的作用。