Biomass, carbon stock and sequestration potential of Oxytenanthera abyssinica forests in Lower Beles River Basin, Northwestern Ethiopia

IF 3.9 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Carbon Balance and Management Pub Date : 2021-09-17 DOI:10.1186/s13021-021-00192-5

Shiferaw Abebe, Amare Sewnet Minale, Demel Teketay, Durai Jayaraman, Trinh Thang Long

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Abstract

Background

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

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.

Conclusion

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.

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埃塞俄比亚西北部贝莱斯河下游流域 Oxytenanthera abyssinica 森林的生物量、碳储量和固碳潜力

背景鉴于埃塞俄比亚拥有巨大的竹子资源基础，并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降低因森林砍伐和退化所产生的排放、提高森林碳储量（REDD+）和清洁发展机制（CDM）项目。然而，人们对竹林的碳储量和固碳潜力知之甚少。因此，本研究旨在量化埃塞俄比亚西北部贝莱斯河下游流域 Oxytenanthera abyssinica 森林的固碳和储碳能力。为此，研究人员在贝莱斯河下游流域的典型竹林地 Assitsa 和 Eddida 建立了 54 个圆形地块，每个地块面积为 100 平方米，半径为 5.64 米。根据胸径（DBH）和竹龄，采用异速方程估算竹子的生物量积累。土壤样本取自两个不同的土壤深度（0-15 厘米和 15-30 厘米），以测定土壤有机碳。结果结果表明，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储量和土壤有机碳储量分别为 83.2 1.5 Mg C ha-1 和 70 1.7 Mg C ha-1。因此，O. abyssinica 竹林的平均碳储量为 152.5 2.5 Mg C ha-1 到 559.8 9.0 吨 CO2 ha-1。研究地区的 O. abyssinica 竹林具有巨大的碳储量和固碳潜力。因此，对这些重要植被资源的可持续管理将增强其在提供生态系统服务（包括减缓气候变化）方面的作用。

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来源期刊

Carbon Balance and Management Environmental Science-Management, Monitoring, Policy and Law

CiteScore

7.60

自引率

0.00%

发文量

审稿时长

14 weeks

期刊介绍： Carbon Balance and Management is an open access, peer-reviewed online journal that encompasses all aspects of research aimed at developing a comprehensive policy relevant to the understanding of the global carbon cycle. The global carbon cycle involves important couplings between climate, atmospheric CO2 and the terrestrial and oceanic biospheres. The current transformation of the carbon cycle due to changes in climate and atmospheric composition is widely recognized as potentially dangerous for the biosphere and for the well-being of humankind, and therefore monitoring, understanding and predicting the evolution of the carbon cycle in the context of the whole biosphere (both terrestrial and marine) is a challenge to the scientific community. This demands interdisciplinary research and new approaches for studying geographical and temporal distributions of carbon pools and fluxes, control and feedback mechanisms of the carbon-climate system, points of intervention and windows of opportunity for managing the carbon-climate-human system. Carbon Balance and Management is a medium for researchers in the field to convey the results of their research across disciplinary boundaries. Through this dissemination of research, the journal aims to support the work of the Intergovernmental Panel for Climate Change (IPCC) and to provide governmental and non-governmental organizations with instantaneous access to continually emerging knowledge, including paradigm shifts and consensual views.