George Ashiagbor

George Ashiagbor
Kwame Nkrumah University of Science and Technology | KNUST · Department of Wildlife and Range Management

PhD. Geomatic Engineering

About

36
Publications
37,158
Reads
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738
Citations
Additional affiliations
August 2014 - January 2022
Kwame Nkrumah University of Science and Technology
Position
  • Lecturer
Education
August 2016 - August 2020
Kwame Nkrumah University of Science and Technology
Field of study
  • Remote Sensing and GIS in Forest/Landscape Mapping and Monitoring

Publications

Publications (36)
Article
Full-text available
Ghana's Ankasa (ACA) and Bia Conservation Area (BCA) are experiencing forest loss due to agricultural conversions. However, there is limited comprehensive analysis of these conversions and their impact on the forest habitat structure in these areas. This study aims to analyse anthropogenic‐induced forest habitat loss and fragmentation in the ACA an...
Article
The absence of clear-cut directives on the optimal classifier for land-use land-cover (LULC) classification of Ghana's cocoa landscape presents a practice gap. This has resulted in monitoring challenges since it is difficult to effectively compare land cover maps because they differ in the classifiers. In this paper, we explored the performance of...
Article
We examined the effects of habitat types (farmlands, open forests and closed forests) and seasons on the population demography and reproduction of small terrestrial mammals in two tropical evergreen forests [Atewa Range Forest Reserve (ARFR) and Bimpong Forest Reserve (BFR)] environments in 2018 and 2019. Small mammals were trapped with Sherman's c...
Article
Full-text available
Due to the overexploitation of mangrove ecosystems and subsequent decline in biomass, fringing communities of the Keta Lagoon Complex Ramsar Site (KLCRS) have resorted to plantation farming of mangroves in the wetland to continue meeting their fuel needs. Using a mixed-method approach which employed a semi-structured questionnaire and an in-depth i...
Article
Despite the scientific contributions of earlier studies to the understanding of shifts in land-use to cashew in the forest-savannah transition zone, some questions remain unanswered: (1) what is the extent of landscape-level conversions associated with cashew? (2) could the expansion of cashew in the forest-savannah transitional zone potentially se...
Article
This research analyzed cocoa deforestation within the framework of land-use policies to support efforts to implement deforestation-free cocoa commitments in Ghana. Land-use maps for 1986, 1999, and 2017 were used to explore cocoa deforestation around three contexts: (1) Gross deforestation – forest conversions irrespective of the legal provisions g...
Article
Full-text available
This study provides first-hand information on how the changing microhabitat in evergreen forests influences the assemblage of small terrestrial mammals. 30 plots of 100 × 50 metres were randomly sampled in the closed forest, open forest and farmlands habitats. Four transects, 100 m in length, spaced at 10 m, were established in each plot. Ten traps...
Article
Full-text available
This study proposes a method for assessing anthropogenic disturbance in the Owabi wetland sanctuary in Ghana using Odonata. Uniqueness of a species to specific land use (LU) class and its tolerance to environmental conditions served as the criteria for the monitoring. Twenty-nine species were identified from the families Aeshnidae, Libellulidae, Ch...
Article
Full-text available
Land use/land cover change (LULCC) studies are gaining prominence among environmentalist and land use planners. This is due to the effects of LULCCs on natural ecosystems and livelihoods. In the coastal landscape of south-western Ghana, there exist knowledge gaps in the variations in size and intensities in LULCCs and the degree of change among lan...
Article
The decline in traditionally valuable fish stocks, coupled with an increased demand for shark fins and meat has caused many fishermen to target sharks. However, there is limited information on the fishing practices, gears, and catch distribution for the shark fisheries. This study used a semi-structured interview to characterize the shark fisheries...
Article
Full-text available
Accurate and current Land Use and Land Cover (LULC) maps are important for planning purposes and to monitor the alterations to the environment mostly caused by humans’ activities. The increased utilization of land resources due to population growth have led to loss of biodiversity and urban planning issues such as flooding and pollution. This study...
Article
Full-text available
Despite the conservation importance of the Keta Lagoon Complex Ramsar Site (KLCRS), obtaining information on the extent and distribution of mangroves is challenging due to the unavailability of optical satellite data. This research explored Sentinel-1 radar data to provide information on mangrove distribution in the KLCRS. Global positioning system...
Article
There is evidence that cocoa is expanding into food croplands in cocoa-producing landscapes in Ghana. This calls for effective monitoring to inform policy and interventions in these landscapes to minimise the possible adverse effects of cropland area loss on food self-sufficiency. This study explored how farmers shift land use from food crops to co...
Article
Full-text available
Increasing demand on water resources, reduced land water availability, and concerns over food security have spurred the evolution of many innovative and complex food production. An aquaponic system is a productive, innovative, and sustainable fish and vegetable production system that is revolutionizing agriculture in the face of drought, soil ferti...
Article
Full-text available
The concept of enhancing economic assets on community farms in order to maintain Sustainable Land Resource Management via the adoption of agroforestry land-use systems has not been tested widely in the Sub-Saharan African Countries. The end line survey revealed that households practicing various agroforestry technologies (AT) increased from 53.4% i...
Article
A wall-to-wall Earth observation (EO) data is required, as recommended by the Intergovernmental Panel on Climate Change, private sector organizations and major development partners, to allow for the implementation of forest monitoring commitments, and also to monitor commodity-led deforestation. However, a major limitation associated with the use o...
Article
Full-text available
Pragmatic quantitative data on geographical accessibility to healthcare remain generally limited in sub-Saharan Africa. This study aims to generate quantitative evidence in health care access in the Ashanti region of Ghana. Dasymetric mapping technique and GIS tools were used to estimate the total population leaving within WHO's recommended 5 km di...
Article
Full-text available
In Ghana, unsustainable management of land resources has led to degradation of the natural resource base leading to food and income insecurities. In this study, we hypothesized that deliberate and planned integration of trees to enhance assets on farms via agroforestry land-use systems should positively influence land resources and thereby enhance...
Article
Full-text available
Artisanal small-scale mining is widely operated in various countries serving as a livelihood to many rural communities. However, it is a significant source of environmental mercury contamination which affects human health. Amalgamation and amalgam smelting, two significant steps in the artisanal small-scale mining operations generate lots of mercur...
Article
Full-text available
Floodplains are among the most productive and highly diverse ecosystems that serve as a source of feed, shelter and breeding ground for wildlife, as well as protect neighbouring settlements from flush floods. Nonetheless, they are among the most threatened habitats on earth. The study quantified factors that accounted for floodplain vegetation chan...
Article
Full-text available
Beyond the loss of peri-urban agricultural and forested land as a result of built-up expansion, not much information exists on the changes in the structure of the peri-urban landscape in Ghana. The aim of this paper is to examine the extent to which urban expansion is driving changes in landscape structure of the peri-urban fringes of Accra. We sub...
Article
Full-text available
Despite the rapid urban transformation in green space in most cities in Ghana, knowledge on urban tree diversity and the evidence of the consequences of built-up expansion on trees is scanty. This article provides a novel contribution to the current urban trees abundance and richness in Kumasi Metropolitan Area, Ghana. Post classification change de...
Article
Full-text available
In Ghana, about 73% of households rely on solid fuels for cooking. Over 13,000 annual deaths are attributed to exposure to indoor air pollution from inefficient combustion. In this study, assessment of thermal efficiency, emissions, and total global warming impact of three cookstoves commonly used in Ghana was completed using the International Work...
Preprint
Full-text available
In Ghana, about 73% of households rely on solid fuels for cooking. Over 13,000 annual deaths are attributed to exposure to indoor air pollution from inefficient combustion. In this study, assessment of thermal efficiency, emissions and total global warming impact of three cookstoves commonly used in Ghana was completed using IWA water boiling test...
Article
Full-text available
To avoid unnecessary waste of limited resources and to help prioritize areas for conservation efforts, this study aimed to provide information on habitat use by elephants between the wet and dry seasons in the Mole National Park (MNP) of Ghana. We compiled coordinates of 516 locations of elephants' encounters, 256 for dry season and 260 for wet sea...
Article
Full-text available
Background Temporal changes in anthropometric indices of Ghanaian adults have not been thoroughly researched. In this study, we present results and projections of mean BMI, underweight and obesity prevalence among women (15-49 years) in Ghana. Methods This is a secondary analysis of the mean BMI, underweight and obesity prevalence data reported in...
Article
Full-text available
To avoid unnecessary waste of limited resources and to help prioritize areas for conservation efforts, this study aimed to provide information on habitat use by elephants between the wet and dry seasons in the Mole National Park (MNP) of Ghana. We compiled coordinates of 516 locations of elephants' encounters, 256 for dry season and 260 for wet sea...
Article
Full-text available
Background To fully understand the burden of hepatitis C (HCV) infection in Ghana towards informing appropriate preventive measures, accurate prevalence estimates are needed. In this study, we estimate the prevalence of chronic HCV infection by systematically reviewing primary studies published between 1995 and 2015. MethodsA systematic review and...
Article
Full-text available
In Ghana fire accounts for one of the major causative agents responsible for reducing productivity and depleting the genetic diversity of forests. Forest fires in Ghana have been estimated to cause an annual loss of 3% of GDP during the past years. They are anthropogenic in origin and can be prevented to a large extent if local people are effective...
Article
Full-text available
Soil erosion involves detachment and transport of soil particles from top soil layers, degrading soil quality and reducing the productivity of affected lands. Soil eroded from the up-land catchment causes depletion of fertile agricultural land and the resulting sediment deposited at the river networks creates river morphological change and reservoi...
Conference Paper
Full-text available
As part of decentralization reforms, many countries have devolved revenue and expenditure responsibilities to Local Government Authorities (LGA's). LGA’s therefore, face the challenge of mobilizing appropriate level of revenue to enable effective service and infrastructure provision. To ensure effective execution of these statutory functions, the L...

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