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Emiru Birhane - One of the best experts on this subject based on the ideXlab platform.
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carbon sequestration and soil restoration potential of Grazing Lands under exclosure management in a semi arid environment of northern ethiopia
Ecology and Evolution, 2019Co-Authors: Tsegay Gebregergs, Zewdu K Tessema, Negasi Solomon, Emiru BirhaneAbstract:Exclosures are used to regenerate native vegetation as a way to reduce soil erosion, increase rain water infiltration and provide fodder and woody biomass in degraded Grazing Lands. Therefore, this study assessed the impact of Grazing exclosure on carbon sequestration and soil nutrients under 5 and 10 years of Grazing exclosures and freely grazed areas in Tigray, northern Ethiopia. Carbon stocks and soil nutrients increased with increasing Grazing exclusion. However, open Grazing Lands and 5 years of Grazing exclosure did not differ in above- and belowground carbon stocks. Moreover, 10 years of Grazing exclosure had a higher (p < 0.01) grass, herb and litter carbon stocks compared to 5 years exclosure and open Grazing Lands. The total carbon stock was higher for 10 years exclosure (75.65 t C ha-1) than the 5 years exclosure (55.06 t C ha-1) and in open Grazing areas (51.98 t C ha-1). Grazing Lands closed for 10 years had a higher SOC, organic matter, total N, available P, and exchangeable K + and Na + compared to 5 year's exclosure and open Grazing Lands. Therefore, establishment of Grazing exclosures had a positive effect in restoring degraded Grazing Lands, thus improving carbon sequestration potentials and soil nutrients.
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Carbon sequestration and soil restoration potential of Grazing Lands under exclosure management in a semi-arid environment of northern Ethiopia.
Ecology and evolution, 2019Co-Authors: Tsegay Gebregergs, Zewdu K Tessema, Negasi Solomon, Emiru BirhaneAbstract:Exclosures are used to regenerate native vegetation as a way to reduce soil erosion, increase rain water infiltration and provide fodder and woody biomass in degraded Grazing Lands. Therefore, this study assessed the impact of Grazing exclosure on carbon sequestration and soil nutrients under 5 and 10 years of Grazing exclosures and freely grazed areas in Tigray, northern Ethiopia. Carbon stocks and soil nutrients increased with increasing Grazing exclusion. However, open Grazing Lands and 5 years of Grazing exclosure did not differ in above- and belowground carbon stocks. Moreover, 10 years of Grazing exclosure had a higher (p
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Carbon Sequestration and Soil Restoration Potential of Grazing Lands under Exclosure Management in a Semi-Arid Environment of Northern Ethiopia
2018Co-Authors: Tsegay Gebregergs, Zewdu K Tessema, Negasi Solomon, Emiru BirhaneAbstract:Exclosures are used to regenerate native vegetation as a way to reduce soil erosion, increase rain water infiltration and provide fodder and woody biomass in degraded Grazing Lands. Therefore, this study assessed the impact of Grazing exclosure on vegetation biomass, carbon sequestration and soil nutrients under five and ten years of Grazing exclosures and freely grazed areas in Tigray, northern Ethiopia. Vegetation biomass, carbon stocks and soil nutrients increased with increasing Grazing exclusion. However, open Grazing Lands and five years of Grazing exclosure did not differ in aboveground biomass, above-and-belowground carbon stocks. Moreover, ten years of Grazing exclosure had a higher (P<0.01) grass, herb and litter carbon stocks compared to five years exclosure and open Grazing Lands. The total carbon stock was higher for ten years exclosure (193.3 t C ha-1) than the five years exclosure (154.0 t C ha-1) and in open Grazing areas (146.6 t C ha-1). Grazing Lands closed for ten years had a higher SOC, organic matter, total N, available P, and exchangeable K+ and Na+ compared to five year’s exclosure and open Grazing Lands. Therefore, establishment of Grazing exclosures had a positive effect in restoring degraded Grazing Lands, thus improving vegetation biomass, carbon sequestration potentials and soil nutrients under the changing climate and global warming.
Wolde Mekuria - One of the best experts on this subject based on the ideXlab platform.
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Willingness and Participation of Local Communities to Manage Communal Grazing Lands in the Lake Tana Biosphere, Ethiopia
Society & Natural Resources, 2017Co-Authors: Dagninet Amare, Wolde Mekuria, Beyene BelayAbstract:ABSTRACTSustainable management of communal Grazing Lands in Ethiopia is crucial to sustain livestock productivity and reduce land degradation. This study was conducted in Dera district, Ethiopia, to assess local communities’ perceptions of the degradation and their attitudes on the management of communal Grazing Lands. Household surveys, group discussions, and the contingent valuation method were used to gather data. Results indicated that local communities are aware of the degradation and are willing to participate in the management of communal Grazing Lands by contributing labor and cash. Labor contribution is positively and significantly correlated to total livestock units (TLU) and credit, and negatively correlated with household size and extension service. Significant correlation between the willingness to contribute cash and TLU was also detected. Community participation and discussions, demarcation of boundaries, equity in benefit sharing, and engaging both formal and informal institutions are cruc...
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Changes in Regulating Ecosystem Services following Establishing Exclosures on Communal Grazing Lands in Ethiopia: A Synthesis
Journal of Ecosystems, 2013Co-Authors: Wolde MekuriaAbstract:In four separate studies undertaken in the northern highLands of Ethiopia, changes in regulating ecosystem services, economic viability, and the perception of local communities following establishing exclosures on communal Grazing Lands were investigated. Replicated 5-, 10-, 15-, and 20-year-old exclosures were selected and paired each exclosure with an adjacent Grazing land. All exclosures displayed higher ecosystem services than communal Grazing Lands. Differences between exclosures and Grazing Lands varied between 29 (±4.9) and 61 (±6.7) Mg C ha −1 for ecosystem carbon stock (ECS), 2.4 (±0.6) and 6.9 (±1.8) Mg ha −1 for total soil N stock, and 17 (±3) to 39 (±7) Kg ha −1 for the available P stock, and all differences increased with exclosure duration. Differences in plant species richness and biomass between an exclosure age and communal Grazing land were higher in oldest than in youngest exclosures. Over a period of 30 years, sequestered carbon dioxide was 246 Mg ha −1, total soil nitrogen increased by 7.9 Mg ha −1, and additional available phosphorous stocks amounted to 40 kg ha −1. The Net Present Value of exclosures ecosystem services under consideration was about 28% (837 US$) higher than alternative wheat production indicating that exclosures are competitive to alternative land uses. There are substantial opportunities to mobilize the local communities in efforts to establish exclosures, given that more than 75% had a positive view on exclosures effectiveness to restore degraded ecosystems. Establishing exclosures on communal Grazing Lands can be effective for restoring degraded ecosystems and the services that they provide.
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Conversion of Communal Grazing Lands into Exclosures Restored Soil Properties in the Semi-Arid LowLands of Northern Ethiopia
Arid Land Research and Management, 2013Co-Authors: Wolde MekuriaAbstract:In the semi-arid tropics, communal Grazing Lands provide a livelihood for millions of people. However, it is highly threatened by overGrazing and continuous land degradation and, as a result, proper management is important to improve the livelihood of the people. This study investigated the effectiveness of exclosures established on communal Grazing Lands to restore soil properties and identified the relationship among soil properties, site and vegetation characteristics, and exclosure age. A space-for-time substitution approach to detect changes in soil properties following the establishment of exclosures on communal Grazing Lands was used. Replicated (n = 3) 5-, 10-, and 15-year-old exclosures were selected and paired, each exclosure with an adjacent communal Grazing land. All exclosures showed higher soil organic matter (OM), total soil nitrogen (N), available phosphorus (P), and cation exchange capacity (CEC) than the adjacent Grazing Lands. The increases in soil properties between exclosures and graz...
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Changes in woody species composition following establishing exclosures on Grazing Lands in the lowLands of Northern Ethiopia
African Journal of Environmental Science and Technology, 2013Co-Authors: Wolde Mekuria, Mastewal YamiAbstract:Restoring vegetation in low rainfall areas is difficult and urges the need to design an effective and low-cost method of vegetation restoration. This study was undertaken in the lowLands of northern Ethiopia to: (1) investigate how exclosure age affects restoration of degraded native plant species richness, diversity and aboveground standing biomass, and (2) identify soil characteristics, which affect effectiveness of exclosures to restore degraded native vegetation. Replicated (n = 3) 5-, 10- and 15- year-old exclosures were selected and each exclosure was paired with an adjacent Grazing land to detect changes in vegetation variables following establishing exclosures on communal Grazing Lands. All exclosures displayed higher species richness, diversity and aboveground biomass when compared to the adjacent Grazing Lands. Results on vegetation composition indicate that all exclosures are at early stage of succession. In all exclosures and Grazing Lands, vegetation variables displayed significant (p < 0.05) correlations with soil variables indicating that consideration of soil fertility will help enhance natural regeneration in exclosures. Our study indicates that the establishment of exclosures on degraded communal Grazing Lands can be effective in restoring degraded native vegetations, and with time, exclosures may obtain an important role as source of seeds of indigenous woody species. Key words : Grazing pressure, land degradation, land use conversion, native vegetation, soil variables, vegetation restoration.
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EXCLOSURE LAND MANAGEMENT FOR RESTORATION OF THE SOILS IN DEGRADED COMMUNAL Grazing Lands IN NORTHERN ETHIOPIA
Land Degradation & Development, 2011Co-Authors: Wolde Mekuria, Ermias AynekuluAbstract:In the northern highLands of Ethiopia, establishment of exclosures to restore degraded communal Grazing Lands has been practiced for the past three decades. However, empirical data on the effectiveness of exclosures in restoring degraded soils are lacking. We investigated the in! uence of exclosure age on degree of restoration of degraded soil and identi" ed easily measurable biophysical and management-related factors that can be used to predict soil nutrient restoration. We selected replicated (n=3) 5-, 10-, 15-, and 20-year-old exclosures and paired each exclosure with samples from adjacent communal Grazing Lands. All exclosures showed higher total soil nitrogen (N), available phosphorus (P), and cation exchange capacity than the communal Grazing Lands. The differences varied between 2! 4( " 0! 61) and 6! 9( " 1! 85) Mgha # 1 for the total N stock and from 17 (" 3) to 39 (" 7) kgha # 1 for the available P stock. The differences in N and P increased with exclosure age. In exclosures, much of the variability in soil N (R 2 =0! 64) and P (R 2 =0! 71) stocks were explained by a combination of annual average precipitation, woody biomass, and exclosure age. Precipitation and vegetation canopy cover also explained much of the variability in soil N( R 2 =0! 74) and P (R 2 =0! 52) stocks in communal Grazing Lands. Converting degraded communal Grazing Lands into exclosures is a viable option to restore degraded soils. Our results also con" rm that the possibility to predict the changes in soil nutrient content after exclosure establishment using regression models is based on " eld measurements. Copyright © 2011 John Wiley & Sons, Ltd.
Tsegay Gebregergs - One of the best experts on this subject based on the ideXlab platform.
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carbon sequestration and soil restoration potential of Grazing Lands under exclosure management in a semi arid environment of northern ethiopia
Ecology and Evolution, 2019Co-Authors: Tsegay Gebregergs, Zewdu K Tessema, Negasi Solomon, Emiru BirhaneAbstract:Exclosures are used to regenerate native vegetation as a way to reduce soil erosion, increase rain water infiltration and provide fodder and woody biomass in degraded Grazing Lands. Therefore, this study assessed the impact of Grazing exclosure on carbon sequestration and soil nutrients under 5 and 10 years of Grazing exclosures and freely grazed areas in Tigray, northern Ethiopia. Carbon stocks and soil nutrients increased with increasing Grazing exclusion. However, open Grazing Lands and 5 years of Grazing exclosure did not differ in above- and belowground carbon stocks. Moreover, 10 years of Grazing exclosure had a higher (p < 0.01) grass, herb and litter carbon stocks compared to 5 years exclosure and open Grazing Lands. The total carbon stock was higher for 10 years exclosure (75.65 t C ha-1) than the 5 years exclosure (55.06 t C ha-1) and in open Grazing areas (51.98 t C ha-1). Grazing Lands closed for 10 years had a higher SOC, organic matter, total N, available P, and exchangeable K + and Na + compared to 5 year's exclosure and open Grazing Lands. Therefore, establishment of Grazing exclosures had a positive effect in restoring degraded Grazing Lands, thus improving carbon sequestration potentials and soil nutrients.
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Carbon sequestration and soil restoration potential of Grazing Lands under exclosure management in a semi-arid environment of northern Ethiopia.
Ecology and evolution, 2019Co-Authors: Tsegay Gebregergs, Zewdu K Tessema, Negasi Solomon, Emiru BirhaneAbstract:Exclosures are used to regenerate native vegetation as a way to reduce soil erosion, increase rain water infiltration and provide fodder and woody biomass in degraded Grazing Lands. Therefore, this study assessed the impact of Grazing exclosure on carbon sequestration and soil nutrients under 5 and 10 years of Grazing exclosures and freely grazed areas in Tigray, northern Ethiopia. Carbon stocks and soil nutrients increased with increasing Grazing exclusion. However, open Grazing Lands and 5 years of Grazing exclosure did not differ in above- and belowground carbon stocks. Moreover, 10 years of Grazing exclosure had a higher (p
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Carbon Sequestration and Soil Restoration Potential of Grazing Lands under Exclosure Management in a Semi-Arid Environment of Northern Ethiopia
2018Co-Authors: Tsegay Gebregergs, Zewdu K Tessema, Negasi Solomon, Emiru BirhaneAbstract:Exclosures are used to regenerate native vegetation as a way to reduce soil erosion, increase rain water infiltration and provide fodder and woody biomass in degraded Grazing Lands. Therefore, this study assessed the impact of Grazing exclosure on vegetation biomass, carbon sequestration and soil nutrients under five and ten years of Grazing exclosures and freely grazed areas in Tigray, northern Ethiopia. Vegetation biomass, carbon stocks and soil nutrients increased with increasing Grazing exclusion. However, open Grazing Lands and five years of Grazing exclosure did not differ in aboveground biomass, above-and-belowground carbon stocks. Moreover, ten years of Grazing exclosure had a higher (P<0.01) grass, herb and litter carbon stocks compared to five years exclosure and open Grazing Lands. The total carbon stock was higher for ten years exclosure (193.3 t C ha-1) than the five years exclosure (154.0 t C ha-1) and in open Grazing areas (146.6 t C ha-1). Grazing Lands closed for ten years had a higher SOC, organic matter, total N, available P, and exchangeable K+ and Na+ compared to five year’s exclosure and open Grazing Lands. Therefore, establishment of Grazing exclosures had a positive effect in restoring degraded Grazing Lands, thus improving vegetation biomass, carbon sequestration potentials and soil nutrients under the changing climate and global warming.
Gregory M. Mckeon - One of the best experts on this subject based on the ideXlab platform.
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an index of summer rainfall for queensland s Grazing Lands
Journal of Applied Meteorology and Climatology, 2018Co-Authors: Kenneth A. Day, Gregory M. MckeonAbstract:AbstractA historical rainfall index, relevant to the Grazing industries of Queensland, Australia, is described. We refer to our index as the Queensland Grazing Lands rainfall index (QGLRI), which i...
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An Index of Summer Rainfall for Queensland’s Grazing Lands
Journal of Applied Meteorology and Climatology, 2018Co-Authors: Kenneth A. Day, Gregory M. MckeonAbstract:AbstractA historical rainfall index, relevant to the Grazing industries of Queensland, Australia, is described. We refer to our index as the Queensland Grazing Lands rainfall index (QGLRI), which i...
Negasi Solomon - One of the best experts on this subject based on the ideXlab platform.
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carbon sequestration and soil restoration potential of Grazing Lands under exclosure management in a semi arid environment of northern ethiopia
Ecology and Evolution, 2019Co-Authors: Tsegay Gebregergs, Zewdu K Tessema, Negasi Solomon, Emiru BirhaneAbstract:Exclosures are used to regenerate native vegetation as a way to reduce soil erosion, increase rain water infiltration and provide fodder and woody biomass in degraded Grazing Lands. Therefore, this study assessed the impact of Grazing exclosure on carbon sequestration and soil nutrients under 5 and 10 years of Grazing exclosures and freely grazed areas in Tigray, northern Ethiopia. Carbon stocks and soil nutrients increased with increasing Grazing exclusion. However, open Grazing Lands and 5 years of Grazing exclosure did not differ in above- and belowground carbon stocks. Moreover, 10 years of Grazing exclosure had a higher (p < 0.01) grass, herb and litter carbon stocks compared to 5 years exclosure and open Grazing Lands. The total carbon stock was higher for 10 years exclosure (75.65 t C ha-1) than the 5 years exclosure (55.06 t C ha-1) and in open Grazing areas (51.98 t C ha-1). Grazing Lands closed for 10 years had a higher SOC, organic matter, total N, available P, and exchangeable K + and Na + compared to 5 year's exclosure and open Grazing Lands. Therefore, establishment of Grazing exclosures had a positive effect in restoring degraded Grazing Lands, thus improving carbon sequestration potentials and soil nutrients.
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Carbon sequestration and soil restoration potential of Grazing Lands under exclosure management in a semi-arid environment of northern Ethiopia.
Ecology and evolution, 2019Co-Authors: Tsegay Gebregergs, Zewdu K Tessema, Negasi Solomon, Emiru BirhaneAbstract:Exclosures are used to regenerate native vegetation as a way to reduce soil erosion, increase rain water infiltration and provide fodder and woody biomass in degraded Grazing Lands. Therefore, this study assessed the impact of Grazing exclosure on carbon sequestration and soil nutrients under 5 and 10 years of Grazing exclosures and freely grazed areas in Tigray, northern Ethiopia. Carbon stocks and soil nutrients increased with increasing Grazing exclusion. However, open Grazing Lands and 5 years of Grazing exclosure did not differ in above- and belowground carbon stocks. Moreover, 10 years of Grazing exclosure had a higher (p
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Carbon Sequestration and Soil Restoration Potential of Grazing Lands under Exclosure Management in a Semi-Arid Environment of Northern Ethiopia
2018Co-Authors: Tsegay Gebregergs, Zewdu K Tessema, Negasi Solomon, Emiru BirhaneAbstract:Exclosures are used to regenerate native vegetation as a way to reduce soil erosion, increase rain water infiltration and provide fodder and woody biomass in degraded Grazing Lands. Therefore, this study assessed the impact of Grazing exclosure on vegetation biomass, carbon sequestration and soil nutrients under five and ten years of Grazing exclosures and freely grazed areas in Tigray, northern Ethiopia. Vegetation biomass, carbon stocks and soil nutrients increased with increasing Grazing exclusion. However, open Grazing Lands and five years of Grazing exclosure did not differ in aboveground biomass, above-and-belowground carbon stocks. Moreover, ten years of Grazing exclosure had a higher (P<0.01) grass, herb and litter carbon stocks compared to five years exclosure and open Grazing Lands. The total carbon stock was higher for ten years exclosure (193.3 t C ha-1) than the five years exclosure (154.0 t C ha-1) and in open Grazing areas (146.6 t C ha-1). Grazing Lands closed for ten years had a higher SOC, organic matter, total N, available P, and exchangeable K+ and Na+ compared to five year’s exclosure and open Grazing Lands. Therefore, establishment of Grazing exclosures had a positive effect in restoring degraded Grazing Lands, thus improving vegetation biomass, carbon sequestration potentials and soil nutrients under the changing climate and global warming.
