Woody species diversity and carbon stock under different land use types at Gergera watershed in eastern Tigray, Ethiopia

Gebre, Abrha Brhan; Birhane, Emiru; Gebresamuel, Girmay; Hadgu, Kiros Meles; Norgrove, Lindsey

doi:10.1007/s10457-018-0226-6

Cited by 18 publications

(17 citation statements)

References 29 publications

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“…This increase in the area under exclosures can be attributed to many perceived benefits; restoring degraded landscapes (Girmay et al, 2009;Mekuria et al, 2009;Ebabu et al, 2019) soil carbon (C) sequestration (Mekuria et al, 2011;Gessesse et al, 2020), and improving other ecosystem services (Rossiter et al, 2017;Gebre et al, 2019). Positive opportunities for livelihood diversification and enhancement may result, with decreased soil erosion and subsequent sedimentation in farmland and rivers downslope of the exclosure areas (Descheemaeker et al, 2006;Nyssen et al, 2006).…”

Section: Ages Of Exclosures Categorymentioning

confidence: 99%

Changes in Soil Properties Following the Establishment of Exclosures in Ethiopia: A Meta-Analysis

et al. 2022

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Community-led watershed development activities, including the establishment of exclosures (areas where both livestock and farming activities are excluded) on degraded communal grazing land, have become a common practice in Ethiopia since the 1990s. However, it is not yet fully understood how these exclosures change soil organic carbon and total soil nitrogen in different soil types and under different agroecologies. A meta-analysis using data gathered from the most relevant peer reviewed articles from Ethiopian exclosure systems was conducted to assess the variation in the effects of exclosures on soil carbon and nitrogen and to investigate the factors controlling change. The results demonstrate that after 16 years, exclosures can increase soil organic carbon and total soil nitrogen up to an effect size greater than two. This is moderated by soil type, exclosure age, landscape position and agroecology. More effective restoration of soil carbon was observed in less developed Leptosols and Cambisols than in more developed Luvisols, and in drier than more humid agroecologies. The results suggest that soil type and agroecology should be taken into consideration when planning and implementing exclosures on degraded communal grazing land. The findings of this study provide base line information for the future expansion of exclosures, and guide where to focus implementation. They also provide criteria to be used when planning and establishing exclosures to restore soil carbon and nitrogen. In addition, the results generated through this meta-analysis provide better understanding of the spatial and temporal variation of the effectiveness of exclosures to restore soil carbon and nitrogen.

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Section: Ages Of Exclosures Categorymentioning

confidence: 99%

Changes in Soil Properties Following the Establishment of Exclosures in Ethiopia: A Meta-Analysis

et al. 2022

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“…Few area-specific kinds of researches have been conducted in Ethiopia on the relationship of woody species diversity with carbon stock potentials in different land use types, including church forests [ 32 ], homegarden agroforestry [ [33] , [34] , [35] , [36] ], and in exclosure [ 37 , 38 ]. Lastly, there was little or no reliable scientific information about woody species diversity and the carbon sequestration potential of different land uses in the study area [ 39 ].…”

Section: Introductionmentioning

confidence: 99%

Woody species diversity and carbon stock potentials in homegarden agroforestry and other land use systems, northern Ethiopia

Maryo,

Wolde,

Negash

2023

Heliyon

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“…Ethiopia's elevation ranges from À130 m in the Afar depression to 4550 m at the peak of Mount Ras Dashen (Kaluski et al 2002). The country possesses diverse types of vegetation (Abebe et al 2013;Gebre et al 2019), agro-ecological zones (Du 2017), and geological formations. The vegetation is dominated by natural gum-and resin-producing tree species such as Boswellia, Commiphora, and Acacia (Gebrehiwot et al 2003).…”

Section: Study Area Descriptionmentioning

confidence: 99%

Assessing the spatio-temporal variability of NDVI and VCI as indices of crops productivity in Ethiopia: a remote sensing approach

Kourouma

Eze

Negash

et al. 2021

Geomatics, Natural Hazards and Risk

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This study aims at characterizing agricultural drought in Ethiopia and understanding the effects of drought on crop yield. Monthly, seasonal and annual Normalized Difference Vegetation Index (NDVI) and Vegetation Condition Index (VCI) values were calculated using MODIS (MOD13Q1) from the year 2003 to 2017. The relationships between NDVI, VCI, and crop yield were examined to predict the possibility of drought impacts on crop productivity. We found that VCI and NDVI data provides consistent and spatially explicit information for operational drought monitoring in Ethiopia. Results also indicated that the most extreme agricultural drought in recent years occurred in 2003, 2004, 2008, 2009, and 2015. These findings also show that mild to severe droughts have a great chance of occurrence in Ethiopia. However, only severe drought has significant impacts on crops. The food crops yield data used in this study include cereals, legumes, and tubers. It was observed that cereals such as (Zea mays), teff (Eragrostis tef), haricot beans (Phaseolus vulgaris) are more sensitive to agricultural drought when compared to the tubers such as sweet potato (Ipomoea batatas) and taro (Colocasia esculenta). Thus, drought preparedness programs need to pay more attention to the cultivation of these crops under severe drought conditions. HIGHLIGHTSNDVI and VCI patterns easily discriminate cereals and legumes when compared to tuber crops. 45% and 43% yield variability of respectively teff and maize is explained by the NDVI patterns. The studied crops (Teff, Maize, Sweet potato and Taro) are less discriminable to seasonal VCI variation.

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Woody species diversity and carbon stock under different land use types at Gergera watershed in eastern Tigray, Ethiopia

Cited by 18 publications

References 29 publications

Changes in Soil Properties Following the Establishment of Exclosures in Ethiopia: A Meta-Analysis

Changes in Soil Properties Following the Establishment of Exclosures in Ethiopia: A Meta-Analysis

Woody species diversity and carbon stock potentials in homegarden agroforestry and other land use systems, northern Ethiopia

Assessing the spatio-temporal variability of NDVI and VCI as indices of crops productivity in Ethiopia: a remote sensing approach

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