Woody Plant Species Diversity of Lay Agerit Giorgis Natural Forest, Merabeti District of North Shoa Zone in Amhara Region, Ethiopia
Sisay Alemu,
Tensay Ayalew,
Befkadu Mewded,
Hailu Wondu,
Debeli Challa
Issue:
Volume 1, Issue 3, September 2021
Pages:
26-39
Received:
28 July 2021
Accepted:
18 August 2021
Published:
27 August 2021
DOI:
10.11648/j.frontiers.20210103.11
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Abstract: Ethiopia is one of the biodiversity reach areas in the world. This study was conducted in Lay Agerit Giorgis forest is located in Merabeti district of North Shoa zone in Amhara region. This inventory was done with the aimed of woody plant species diversity documentation; determine floristic composition and regeneration status of woody plant species in Lay Agerit Giorgis Natural Forest. Systematic sampling was employed for the purpose of woody plant inventory in this area. The total of 34 quadrates were established with 6 transects in each of them 100meter apart and also 100meter distance in between plots with the sample plot area enumerated as the 10X 50meter. The major forest disturbance factors were recorded 35.16% light and moderate Browsing, 36.26% light and moderate Grazing and 28.57% light and moderate disturbance levels shows by logging /cutting. A total of 48 woody plant species belong to 38 genera and 27 families were recorded. The most frequent genera in the woodland were (Fabaceae), (Capparidaceae), (Celastraceae) and (Tiliaceae), respectively. The species frequency ranges between 2.94 – 76.4% with Dichrostachys cinerea (74.4%), Acacia tortilis (67.6%), each Dodonaea angustifolia and Euclea racemosa (64.7%) are among the top and Gardenia ternifolia, Ficus sur, Commiphora africana, Celtis africana are among the lowest in frequency distribution (2.94%). Setting high priority is needed to conserve these endangered woody plant species following either the ex-situ or field Gene bank or both conservation systems.
Abstract: Ethiopia is one of the biodiversity reach areas in the world. This study was conducted in Lay Agerit Giorgis forest is located in Merabeti district of North Shoa zone in Amhara region. This inventory was done with the aimed of woody plant species diversity documentation; determine floristic composition and regeneration status of woody plant species...
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Effect of Drip Lateral Spacing and Water Levels on Yield and Water Use Efficiency of Onion (allium cepa l.) Under Awash Melkassa Climatic Condition
Asnake Tilaye,
Teshome Seyoum,
Tilahun Hordofa
Issue:
Volume 1, Issue 3, September 2021
Pages:
40-48
Received:
10 August 2021
Accepted:
20 August 2021
Published:
31 August 2021
DOI:
10.11648/j.frontiers.20210103.12
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Abstract: Water being scarce resources, irrigation water is the most limiting factor for vegetable production in the central rift valley of Ethiopia. Drip irrigation technique together with deficit irrigation application improves crop yield and water use efficiency. Hence, the objective of this study was to enhance onion production and WUE through the application of drip irrigation technology and deficit irrigation application. Field experiment was conducted at Melkassa agricultural research center during the cool cropping season of 2019/2020 to investigate the effects of drip lateral spacing and irrigation levels on onion yield, water use efficiency and net return. Two levels of drip lateral spacing viz., lateral placed in every row and between two rows, and three levels of deficit irrigation viz., 80% ETc, 70% ETc and 55% ETc, and one-full irrigation (100% ETc). The treatments were arranged in split plot with three replications. Data were analyzed using statistical package appropriate to split plot with the help of SAS software. The result showed that onion yield, yield parameters and water use efficiency was affected by the effects of drip lateral spacing and irrigation water levels but not affected by their interaction effect. Onion bulb yield decreased with increased levels of water deficit. In contrast, both water use efficiency and irrigation water use efficiency increased with increase in water deficit level. Maximum onion bulb yield of 41.43 t ha-1 were obtained from lateral spacing in every row and full irrigation application level of 100% ETc and has no a significant difference with every row lateral spacing, and 85% and 70% ETc irrigation application levels. The highest water use efficiency of 13.33 Kgm-3 was recorded from every row drip lateral spacing and irrigation application of 70% ETc. Therefore, onion could be irrigated every row drip lateral spacing with 70% ETc application to increase water use efficiency without a significant total bulb yield reduction.
Abstract: Water being scarce resources, irrigation water is the most limiting factor for vegetable production in the central rift valley of Ethiopia. Drip irrigation technique together with deficit irrigation application improves crop yield and water use efficiency. Hence, the objective of this study was to enhance onion production and WUE through the applic...
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