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Environment and Social Impacts of Stone Quarrying: South …

All over the world there is a realization that quarrying activities has evolved over time to mining industry that has the potential to provide hither to unparalleled services to management in their efforts to reduce effects of quarrying risks to the human being and the surroundings. This potentially has been turned into a challenge and embodied in the …

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Environmental Impact and Sustainability of Aggregate Production in Ethiopia

The objective of the research was to make assessment of the current situation of active and abandoned aggregate materials production quarries and the condition of the …

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Critical review on improving irrigation water use

IFAD (2005) indicated that in Ethiopia, SSI has resulted in increased production, income, and diet diversification in the Oromia and South regions. Irrigation schemes had a positive role on the education level, usage of improvised, per capital aggregate income, improved standards of living, marketing, and distribution ( Furi and ...

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Aggregate Export and Food Crop Supply Response in Tanzania

Tanzania is among the many African countries that have engaged in agricultural liberalisation since the mid-1980s, in the hope that reforms which introduce price incentives and efficient marketing will encourage producers to respond. This paper assesses that claim by examining the supply response of agricultural output in Tanzania. Our estimates …

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Water, Sanitation and Agriculture in Ethiopia and Tanzania

Agriculture in Ethiopia and its Relevance to Resiliency. Agriculture remains the dominant sector in Ethiopia's economy and an important source of economic growth. The sector accounts for 39% of Ethiopia's gross domestic product, 73% of employment for the population, and 80% of export earnings. Given the economy's reliance on agriculture ...

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Small Ruminant Production in Tanzania, Uganda, and Ethiopia…

From 54 eligible articles, most were focused in Ethiopia (n = 44) with only 6 studies performed in Tanzania and 4 in Uganda. The most frequently identified constraint in Ethiopia and Tanzania was disease (n = 28 and n = 3, respectively), and in Uganda, it was the lack of access to veterinary services (n = 4).

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The impact of production shocks on maize markets in Ethiopia

However, maize production in Tanzania and Uganda does not exceed 3.5 million metric tons and is not enough to supply the regional demand. For instance, South Sudan alone imported more than 500 thousand tons in 2013 (Dorosh et al. 2016). Furthermore, Tanzania has tightened up on maize exports to the region, depending on …

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Concrete block machine In Ethiopia

The mix ratio for Hollow Concrete Block (HCB) production in Ethiopia is a critical factor in ensuring the blocks' quality and strength. Typically, a mix ratio of 1:5 to 1:6 is commonly used, indicating one part cement to five to six parts aggregate (a combination of sand and crushed stone or available raw materials based on the region).

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Full article: The effects of commercialization of cereal crops …

In Ethiopia, about 23% of cereals produced by smallholders were used for sale (CSA Citation 2020). Carletto, Corral, and Guelfi (Citation 2017) found that farmers …

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Projecting future carbon emissions from cement production …

For example, in Ethiopia, emission reductions attributed to CCS grows from 24.5% to 36.4%, as the percentage of new installed capacity increases from 73.5% under the BAU cement production scenario ...

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Fine Aggregate Production and Its Environmental Impact in …

dc.contributor.advisor: Dinku, Abebe(Professor) dc.contributor.author: Yusuf, Yasmin: dc.date.accessioned: T06:56:19Z: dc.date.accessioned: T08:29 ...

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Routine health information utilization and associated factors …

Results. After reviewing 22924 studies, 10 studies involving 4054 health workers were included for this review and meta-analysis. The pooled estimate of routine health information utilization among health workers in …

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4,700 120,000 135M

[13]. Due to the production process and luck of standardization, there is a big problem in getting good sand for production of concrete due to different reasons (Figure 2). 2.3 Production of coarse aggregate type, quality, production, and quarrying trend and method Production of coarse aggregates includes blasting of rock, transporting of the

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Environmental Impact and Sustainability of Aggregate Production in Ethiopia

DOI: 10.5772/intechopen.90845 Corpus ID: 214703387; Environmental Impact and Sustainability of Aggregate Production in Ethiopia @article{Assefa2020EnvironmentalIA, title={Environmental Impact and Sustainability of Aggregate Production in Ethiopia}, author={Gashaw Assefa and Aklilu Gebregziabher}, journal={Sandy Materials in Civil …

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Improving The Performance of Hollow Concrete Block

Conventionally, hollow concrete block (HCB) is produced from ordinary Portland cement (OPC) and pumice aggregate in Adama town-Ethiopia. This study aims to improve the performance of conventional ...

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Determining the Physical Properties of …

PDF | On Dec 16, 2019, Ashebir Alyew Mamo published Determining the Physical Properties of Aggregate Products and its Suitability for Road Base Construction, Ethiopia | Find, read and cite all the ...

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An Agro-Climatological Characterization of Bread Wheat …

production in Ethiopia would involve increasing the tolerance of wheat to warmer growing conditions but that other factors, including the adaptation of current and/or alternate crops, ... Congo), northern Tanzania, and Lesotho. 1 Introduction Ethiopia is the second largest producer of wheat in sub-Saharan Africa, following South Africa (Table

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Full article: Quantifying food insecurity in Ethiopia: …

Recent statistics show that, in the Somali National Region (one of the 9 National Regions of Ethiopia), more than half (58% or 3.7 million people) of the region's population were aided by World Food Program's emergency relief assistance due to a reduction in the amount of rainfall during one production season (Sisha, Citation 2020).

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Fine Aggregate Production and Its Environmental

The production of aggregate for the infrastructural development of the country has been increasing for the last three decades due to the high urbanization rates in the main cities of the country and…

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Gravel and Crushed Stone in Ethiopia | The Observatory of …

The main destinations of Ethiopia exports on Gravel and Crushed Stone were South Sudan ($5.61k), Canada ($466), and Ireland ($72). In 2022, Ethiopia imported $580k in Gravel and Crushed Stone, mainly from China ($280k), Italy ($158k), France ($40.5k), Saudi Arabia ($39.2k), and India ($21.3k). Explore Visualizations

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Economic Growth: The Aggregate Production Function

An aggregate production function relates the total output of an economy to the total amount of labor employed in the economy, all other determinants of production (that is, capital, natural resources, and technology) being unchanged. An economy operating on its aggregate production function is producing its potential level of output.

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Production of fine aggregate in Ethiopia [6].

In Ethiopia for instance, quarrying for aggregate production has been on the increase for the last three decades due to the high rate of urbanization in the country [8]. As a result, the ...

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(PDF) Expansion of Sugarcane Production in Ethiopia: …

The decline in consumption expenditure for rural non-poor and urban poor s are moderate (0.60% and 0.58%, respectively). The average aggregate result implies that massive sugarcane production would force both rural and urban s to remain poor Expansion of Sugarcane Production in Ethiopia: Welfare Opportunity or …

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EVALUATION OF SUITABILITY OF COARSE …

aggregate production in Ethiopia is generally basalt while ignimbrite is most commonly used for masonry stone. On the other hand the majority of sand is collected from river beds (Abebe, 2005). In Mekelle area there are four lithologic rock units, dolerite, sandstone, limestone-marl-shale

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Full article: Smallholder banana

1. Introduction. Farming system is a broad concept that includes biophysical and socio-economic perspectives, such as characteristics, crop production, livestock rearing, and natural resources management, which convert key factors of production (land, labor and capital) into usable products (Agajie et al., Citation …

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Environmental Impact and Sustainability of Aggregate …

The production of aggregate for the infrastructural development of the country has been increasing for the last three decades due to the high urbanization rates in the main cities …

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Does Agricultural Commercialisation Increase Asset and …

We examined the effects of the commercialisation of chickpea production in Ethiopia on assets and livestock holdings. This represents a less studied, though …

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Aggregate agricultural supply response in Ethiopia: a …

Quadratic production and restricted profit functions are estimated using farm-level survey data from Ethiopia in 1994. The results indicate that farmers respond only modestly to price incentives. The own-price output supply elasticity is very low and output supply is not responsive to fertilizer prices or the wage rate.

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Environmental Impact and Sustainability of …

In Ethiopia for instance, quarrying for aggregate production has been on the increase for the last three decades due to the high rate of urbanization in the country [8]. As a result, the ...

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Environmental Impact and Sustainability of …

The production of aggregate for the infrastructural development of the country has been increasing for the last three decades due to the high urbanization rates in the main cities of the country and …

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