Climate variability causes enormous suffering particularly on rural farmers’ whose livelihoods depend largely on rain-fed agriculture. Ethiopia in general the Dera woreda in particular is not an exception in ...
Mercury (Hg) used in gold amalgamation is a major source of contamination in developing countries. The present study evaluates the concentrations of total mercury in water, sediment and fish from the Ankobra a...
Authors: Noah Kyame Asare-Donkor and Anthony Apeke Adimado
Short term current prediction for operational purposes is commonly carried out with the help of numerical
ocean circulation models. The numerical models have advantage that they are based on the physics of the...
Authors: Dauji Saha, M. C. Deo, Sudheer Joseph and Kapilesh Bhargava
Phosphorus is believed to be the second most limiting nutrient for crop growth and development in acidic soils. It is mainly because the amount of P in the soil is inherently low and part of it is fixed and ma...
Bangladesh is widely recognized to be one of the most climate vulnerable countries in the world and climate change issues are being one of the major focuses of the government and other development agencies of ...
Water is a vital resource for human survival. Safe drinking water is a basic need for good health, and it is also a basic right of humans. The aim of this study was to analysis drinking water quality and its e...
Air quality is well recognized as a contributing factor for various physical phenomena and as a public health risk factor. Consequently, there is a need for an accurate way to measure the level of exposure to...
Authors: Shai Moshenberg, Uri Lerner and Barak Fishbain
To identify and quantify the impact of climate change on socio-economic sectors and ecosystems, many global studies have been carried out and policy changes for mitigation and adaptation were recommended. Howe...
Authors: Solomon Addisu, Yihenew G. Selassie, Getachew Fissha and Birhanu Gedif
Photovoltaic (PV) array which is composed of modules is considered as the fundamental power conversion unit of a PV generator system. The PV array has nonlinear characteristics and it is quite expensive and ta...
The global changes that are currently threatening the natural environment demand appropriate answers and solutions by the environmental science community. The increasing amount of heterogeneous data—Big Data—n...
Authors: Denisa Rodila, Nicolas Ray and Dorian Gorgan
This retrospective study was aimed to examine the distribution of some physicochemical parameters and its health impact in selected drinking water sources of Ethiopia. The study used 983 water samples collecte...
Nitrogen is the most limiting nutrient for crop growth and development; and as in most soils of Ethiopia, the soils of the study area are deficient in nitrogen. Therefore, the objective of this research was to...
Solar module is considered as fundamental power transformation unit of Photovoltaic (PV) generation system. The performance of a PV array strongly depends on operating environmental conditions such as operati...
Currently in Ethiopia, Ecotourism is expanding around hot springs, and the increasing recognition of the value of this smokeless industry suggests that there will be a rekindling of interest in thermal springs...
Authors: Sisay Derso, Abebe Beyene, Melaku Getachew and Argaw Ambelu
Groundwater quality is among the most important environmental issues as a result of heavy metals contamination from anthropogenic sources. Concentrations of heavy metals in hand-dug wells from Ejisu-Juaben Mun...
Authors: Thomas Kwame Boateng, Francis Opoku, Samuel Osafo Acquaah and Osei Akoto
Land degradation and unsustainable management practices have resulted in soil organic carbon and nutrient depletion, hydrological instability, reduced primary productivity, and low biological diversity. In res...
Authors: Fantaw Yimer, Getachew Alemu and Abdu Abdelkadir
The discharge of the River Brah
maputra is highly affected by the melting of snow at the upper part of its catchment. Increase in discharge due to significant retreat of snow in turn affects the downstream flo...
Historically human being exist in harmony with their environment. However, the current rapid urbanization, industrialization and expansion of different economic activities were lead to contamination of environ...
Recent advances in
microbial ecology are providing unprecedented opportunities to test Baas Becking’s oft-cited “everything is everywhere, environment selects” axiom. A number of recent studies have brought t...
As declared by UNESCO, Qanats are considered as a great human heritage. For many centuries, they presented a rational way of groundwater management in arid rural areas. This paper aims at revisiting this ancie...
Authors: Fuzhan Nasiri and Mohammad Saleh Mafakheri
Surface water represents significant source of fresh water for irrigation and drinking purposes and therefore preserving the availability and quality of this resource is extremely important. Surface water samp...
Authors: Noah Kyame Asare-Donkor, Edward Ebow Kwaansa-Ansah, Francis Opoku and Anthony Apeke Adimado
Due to common bean derives lower nitrogen (N) from symbiotic N2-fixation, it requires N either from inorganic fertilizer or soil N. Field experiments were conducted at four locations to evaluate the effect of Rhi...
In Central Rift Valley (CRV) of Ethiopia, renewable land resources are under pressure. Acacia woodland clearance, frequent cultivation, crop residue removal and mono-cropping are among the major land mis-manageme...
Authors: Gurmessa Biyensa, Ambachew Demissie and Bekele Lemma
Unsafe and non-productive disposal of food waste pollutes the environment. Biodegradable food wastes have been composted and applied to soil as an amendment to improve the soil properties and fertility while i...
“habitat classification models” are invaluable tools for species conservation, land-use planning, reserve design, and meta-population assessments, particularly at broad spatial scales”. Globally, there are at ...
Authors: Khaled Allam Harhash, Mohmmed Talaat El-Henawy, Haitham Farouk Abdel Fattah and Mohammed Sameh Antar
The contact process preferably used vanadium pentaoxide as catalyst to increase the rate of reaction of producing sulphuric acid. Sulfuric acid plants regularly require catalyst replacement in order to cope wi...
The Ethiopian government has been implementing watershed management mainly through public campaign work. However, its effects have not been evaluated in many micro-watersheds. This study evaluates watershed ma...
Increased flooding and newly formed rills and gullies were observed in the Cheleleka wetland watershed, over the past three to five years. These events are due to problems related to land use changes and are a...
Authors: Kebede Wolka, Habitamu Tadesse, Efrem Garedew and Fantaw Yimer
Nonlinear relationships are common in the environmental discipline. Spreadsheet packages such as Microsoft Excel come with an add-on for nonlinear regression, but parameter uncertainty estimates are not yet av...
Authors: Wei Hu, Jing Xie, Henry Wai Chau and Bing Cheng Si
Land degradation is one of the major threats to food security and natural resources conservation Zikre watershed. The objective of the study was to investigate the effects of land use types, management practic...
Authors: Yihenew G Selassie, Fentanesh Anemut and Solomon Addisu
We present a Support Vector Machine (SVM) approach to the localization of hazardous particulate releases in an urban area using features constructed only from measurements obtained from a network of sensors.
Authors: Ronald Taylor Locke and Ioannis Ch Paschalidis
CA-ANN models which integrate Cellular Automata (CA) and Artificial Neural Networks (ANNs) for simulating land use change, usually urban and non-urban, predict the final land use type of a cell by the greatest...
Jatropha is an oil-bearing plant growing in tropical and subtropical regions of the world within 30°N and 35°S latitudes. It is considered as a potential solution to the prevailing shortage of fossil fuel and ...
Algal mass occurrences are one of the most distinguishing effects of eutrophication in lakes and the coastal waters of the Baltic Sea. Algal bloom occurrence in water bodies varies greatly in terms of both spa...
Authors: Ville Kotovirta, Timo Toivanen, Marko Järvinen, Matti Lindholm and Kari Kallio
The widespread land degradation in Ethiopia has necessitated extensive soil and water conservation interventions over the last four decades. Despite these the degradation of land continues. The conservation in...
Authors: Ahmed Amdihun, Ephrem Gebremariam, Lisa-Maria Rebelo and Gete Zeleke
Newfoundland and Labrador (NL) has one of the highest waste disposal rates in Canada and it has 200 small communities without access to central composting facilities. During Municipal solid waste (MSW) compost...
Authors: Khoshrooz Kazemi, Baiyu Zhang, Leonard M Lye and Weiyun Lin
The aim of this work is to propose a new river water quality index using fuzzy logic. The proposed fuzzy index combines quality indicators’ prescribed thresholds extracted mainly from the Moroccan and the Queb...
Authors: Asmaa Mourhir, Tajjeeddine Rachidi and Mohammed Karim
With the characteristics of low pollution and low energy consumption, the magnetohydrodynamics has made widely attention. This paper provides the standard energy method to solve the magnetohydrodynamic equatio...
Energy system management is an important tool for regional energy and environmental development, and many parameters and their interrelationships in energy-environmental management model appear complexity and ...
Authors: Wei Li, Xiaoyu Liu, Guanzhong Sun, Ling Ji and Guohe Huang
Land use suitability assessment is a key factor in any urban and suburban planning and decision-making processes. The assessment is evaluated by a series of criteria involving socio-economic needs. To deal wit...
Moisture-induced suction changes in expansive soils due to infiltration and evaporation result in failure of civil infrastructure. The objective of this paper was to develop a two stage deformation model by si...
In the context of the knowledge of the functioning of estuaries and the evolution of abiotic factors on the basis of the marine dynamics, a study was conducted at the level of the Loukkos river estuary.
Traditional and indigenous communities in India are of the religious belief that medicinal groves and plants are sacred in nature. Sacred groves (SGs) are patches of trees on forest land that are protected com...
Waste management problems are subject to uncertainties presented as intervals, random variables and/or fuzzy sets. During the past 20 years, inexact programming methods have been developed and applied increasi...
Authors: Wei Sun, Chunjiang An, Gongchen Li and Ying Lv
The integrative assessment of responses to environmental disturbance simultaneously considering multiple taxonomic groups or guilds has become increasingly important in ecological monitoring. The most common s...
Authors: Melanie Mueller, Joachim Pander and Juergen Geist
Raster-based digital elevation models (DEMs) play an important role in distributed hydrologic modeling supported by geographic information systems (GIS). In this study, DEMs and stream network data were used t...
China's inland nuclear power plants plan has been suspended until 2015 since Fukushima disaster. The policy on inland nuclear power plants becomes uncertain. This paper provides an overview of inland nuclear p...
This study tested a first-order perturbation method based on Karhunen-Loevè expansion (FP-KLE), to analyze flood inundation modeling under uncertainty. The floodplain roughness over a 2-dimensional domain was ...
Climate change is a significant and long-term change in the weather patterns over periods ranging from decades to millions of years. The impacts of climate change have been drawn more and more worldwide attent...
In this study, we applied the geostatistical modeling to analyze an oil field. The reservoir properties, thickness, porosity and permeability, were studied. Data analysis tools, such as histogram, scatter plot...
Authors: Shan Zhao, Yang Zhou, Mengyuan Wang, Xiaying Xin and Fang Chen
