Patterns and drivers of the above- and below-ground carbon stock in Afromontane forest of southern Ethiopia: implications for climate change mitigation

IF 1.1 4区 环境科学与生态学 Q4 ECOLOGY
Shemsu Ahmed, Debissa Lemessa
{"title":"Patterns and drivers of the above- and below-ground carbon stock in Afromontane forest of southern Ethiopia: implications for climate change mitigation","authors":"Shemsu Ahmed, Debissa Lemessa","doi":"10.1007/s42965-024-00334-z","DOIUrl":null,"url":null,"abstract":"<p>The adaptation measures in the forestry sector are essential to mitigate climate change and to support sustainable development. Reducing emissions through improved forest management is a critical approach for climate change adaptation. Several previous investigations have estimated carbon stock for forest ecosystems. However, the drivers of this function are less understood, especially in the tropical context. Hence, this investigation intended to explore the factors affecting the carbon stock potential of dry Afromontane forest in southern Ethiopia. Employing a systematic sampling system, ten transects were laid out with 125-m intervals along the altitudinal gradient. The main plots (size 20 m × 20 m each and two subplots (each: 10 m × 10 m) were laid out in the opposite corner of the main plots and in total 46 main plots and 92 subplots were used for vegetation and dead wood data collection respectively. The plots were arranged on transects at 125 m interval to measure trees and shrubs, respectively. Moreover, a total of 230 sub-sub plots (1 m × 1 m) were arranged at the four corners and in the center of the main plots to collect herbs and litters for the assessment of non-woody carbon stocks. The altitude and topographic aspects of the sample plots were recorded using Garmin GPS and Silva compass, respectively. The carbon stock was calculated using allometric equations developed for the estimation of dry Afromontane forest carbon stocks. The effect of species type, altitude, and topographic aspects on above-ground and below-ground carbon stock was analyzed by using one-way ANOVA. The results revealed that the total above-ground and belowground carbon stock of dry Afromontane forest is 1943.2 tons/ha. The carbon stock of woody species stock increased with increasing altitudinal gradient but opposite trend was found for non-woody species. Moreover, the carbon stock of both woody and non-woody species significantly varied among topographic aspects and plant family types. The carbon stock was higher for Cupressaceae (811.5 tons/ha) followed by Podocarpaceae (630.9 tons/ha). The highest carbon stock of woody biomass was recorded in the southwest aspect (663.30 tones/ha), and the lowest carbon (141.8 tons/ha) was recorded in the northwest topographic aspect. In conclusion, the environmental and vegetation structure need to be considered in devising forest conservation strategy for climate change mitigation and adaptation.</p>","PeriodicalId":54410,"journal":{"name":"Tropical Ecology","volume":"2013 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tropical Ecology","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1007/s42965-024-00334-z","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

The adaptation measures in the forestry sector are essential to mitigate climate change and to support sustainable development. Reducing emissions through improved forest management is a critical approach for climate change adaptation. Several previous investigations have estimated carbon stock for forest ecosystems. However, the drivers of this function are less understood, especially in the tropical context. Hence, this investigation intended to explore the factors affecting the carbon stock potential of dry Afromontane forest in southern Ethiopia. Employing a systematic sampling system, ten transects were laid out with 125-m intervals along the altitudinal gradient. The main plots (size 20 m × 20 m each and two subplots (each: 10 m × 10 m) were laid out in the opposite corner of the main plots and in total 46 main plots and 92 subplots were used for vegetation and dead wood data collection respectively. The plots were arranged on transects at 125 m interval to measure trees and shrubs, respectively. Moreover, a total of 230 sub-sub plots (1 m × 1 m) were arranged at the four corners and in the center of the main plots to collect herbs and litters for the assessment of non-woody carbon stocks. The altitude and topographic aspects of the sample plots were recorded using Garmin GPS and Silva compass, respectively. The carbon stock was calculated using allometric equations developed for the estimation of dry Afromontane forest carbon stocks. The effect of species type, altitude, and topographic aspects on above-ground and below-ground carbon stock was analyzed by using one-way ANOVA. The results revealed that the total above-ground and belowground carbon stock of dry Afromontane forest is 1943.2 tons/ha. The carbon stock of woody species stock increased with increasing altitudinal gradient but opposite trend was found for non-woody species. Moreover, the carbon stock of both woody and non-woody species significantly varied among topographic aspects and plant family types. The carbon stock was higher for Cupressaceae (811.5 tons/ha) followed by Podocarpaceae (630.9 tons/ha). The highest carbon stock of woody biomass was recorded in the southwest aspect (663.30 tones/ha), and the lowest carbon (141.8 tons/ha) was recorded in the northwest topographic aspect. In conclusion, the environmental and vegetation structure need to be considered in devising forest conservation strategy for climate change mitigation and adaptation.

Abstract Image

埃塞俄比亚南部非洲蒙地森林地上和地下碳储量的模式和驱动因素:对减缓气候变化的影响
林业部门的适应措施对于减缓气候变化和支持可持续发展至关重要。通过改善森林管理减少排放是适应气候变化的重要方法。之前的一些调查对森林生态系统的碳储量进行了估算。然而,对这一功能的驱动因素了解较少,尤其是在热带地区。因此,本调查旨在探索影响埃塞俄比亚南部非洲季风干旱森林碳储量潜力的因素。采用系统取样法,沿海拔梯度以 125 米的间隔布置了 10 个横断面。在主地块的对角布置了主地块(每块面积为 20 m × 20 m)和两个子地块(每块面积为 10 m × 10 m),共有 46 个主地块和 92 个子地块,分别用于采集植被和枯木数据。这些地块以 125 米的间距排列在横断面上,分别测量乔木和灌木。此外,还在主小区的四个角落和中央布置了 230 个子小区(1 米×1 米),用于采集草本植物和废弃物,以评估非木质碳储量。使用 Garmin GPS 和 Silva 指南针分别记录了样地的海拔高度和地形。碳储量的计算采用了为估算非洲干旱森林碳储量而开发的异速方程。采用单因素方差分析法分析了树种类型、海拔和地形对地上和地下碳储量的影响。结果表明,干旱非洲红树林地上地下总碳储量为 1943.2 吨/公顷。木质树种的碳储量随着海拔梯度的增加而增加,但非木质树种的碳储量则呈相反趋势。此外,木质和非木质树种的碳储量在不同地形和植物科类型之间存在显著差异。冲天香科(811.5 吨/公顷)的碳储量较高,其次是荚果科(630.9 吨/公顷)。木质生物量碳储量最高的是西南地貌(663.30 吨/公顷),最低的是西北地貌(141.8 吨/公顷)。总之,在制定减缓和适应气候变化的森林保护战略时,需要考虑环境和植被结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Tropical Ecology
Tropical Ecology ECOLOGY-
CiteScore
3.30
自引率
6.20%
发文量
71
审稿时长
>12 weeks
期刊介绍: Tropical Ecology is devoted to all aspects of fundamental and applied ecological research in tropical and sub-tropical ecosystems. Nevertheless, the cutting-edge research in new ecological concepts, methodology and reviews on contemporary themes, not necessarily confined to tropics and sub-tropics, may also be considered for publication at the discretion of the Editor-in-Chief. Areas of current interest include: Biological diversity and its management; Conservation and restoration ecology; Human ecology; Ecological economics; Ecosystem structure and functioning; Ecosystem services; Ecosystem sustainability; Stress and disturbance ecology; Ecology of global change; Ecological modeling; Evolutionary ecology; Quantitative ecology; and Social ecology. The Journal Tropical Ecology features a distinguished editorial board, working on various ecological aspects of tropical and sub-tropical systems from diverse continents. Tropical Ecology publishes: · Original research papers · Short communications · Reviews and Mini-reviews on topical themes · Scientific correspondence · Book Reviews
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信