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Application of Social Media Tool in Disaster Management in Disaster-Prone Communities in Freetown, Sierra Leone

Open Journal of Applied Sciences 2023年第6期13卷 858-873页

作者： ibrahim abdulai sawaneh Luo Fan Brima Sesay School of Management Wuhan University of Technology Wuhan China Department of Computer Science University of Management and Technology Freetown Sierra Leone Department of Economics and Commerce Fourah Bay College University of Sierra Leone Freetown Sierra Leone

This study used both the “digital divide” and “attribution theory” to analyze the propensity of social media use by disaster-prone communities. The study focused on the variables that may affect how social media is used for disaster management. Structural equation modeling (SEM) was utilized in the study to analyze the data and test the hypotheses after using a survey questionnaire to collect the data. The study’s findings show that: 1) communities that are vulnerable to disasters are less likely to use social media for disaster management, 2) personal effort and intention to use social media for disaster management are positively correlated, and 3) task complexity and intention to use social media for disaster management are negatively correlated. The study added to the body of knowledge regarding the role social media plays in disaster management.

关键词： Social Media Use Disaster Management Disaster-Prone Community Task Complexity Ability Effort

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Effect of Land Uses on Soil Erodibility in the Njala Area of Southern Sierra Leone

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Open Journal of Soil Science 2022年第10期12卷 475-489页

作者： Denis Magnus Ken Amara ibrahim Benya Sheku Alfred Kanu Daniel Hindogbe Saidu Raymond Morie Musa Osman Sidie Vonu Fayia Brima Joseph Christian Adamu Mboma Michael Jusu Foday Turay abdulai Kamara Department of Soil Science School of Agriculture & Food Sciences Njala University Njala Campus Njala Sierra Leone Department of Soil Science Faculty of Development Agriculture & Natural Resources Management Eastern Technical University of Sierra Leone Private Mail Bag Kenema Sierra Leone Project Management Office Mamour Agricultural Foundation Freetown Sierra Leone Department of Crop Science School of Agriculture & Food Sciences Njala University Njala Campus Sierra Leone Department of Agriculture Food Security & Livelihood Sustainable Cassava Commercialization through Entrepreneurs Strengthening & Support (SUCCESS) Project Bangladeshi Rural Agro Committee (BRAC) Bo Sierra Leone Department of Agricultural Education Faculty of Education Eastern Technical University of Sierra Leone Kenema Sierra Leone Department of Social Studies Faculty of Education Eastern Technical University of Sierra Leone Kenema Sierra Leone Department of Agriculture & Forestry Faculty of Development Agriculture & Natural Resources Management Eastern Technical University of Sierra Leone Kenema Sierra Leone Department of Agricultural Engineering Faculty of Development Agriculture & Natural Resources Management Eastern Technical University of Sierra Leone Kenema Sierra Leone

Soil loss through erosion continues to pose serious challenges to increasing the smallholder agricultural productivity in Sierra Leone. While emphasis on sustainable land use practices continue to gain attention among land users, however, the rate of adoption among smallholder farmers is still very low and hence, in most part of the country soil fertility has been declining at alarming rates. In the Njala area, studies have shown that soil loss ranges from moderate to high. Though soil erosion has been identified as a major soil fertility declining factor, however, the effect of land use practices on the inherent resistance of soil materials to erosion is lacking. This study was therefore conducted to assess the effect of land uses on soil erodibility. The results showed that the soils are coarse sandy loam with high sand content. The dispersion ratios and erosion indices of soils under cassava, plantain, maize and guava were above the minimum thresholds of 15.0 and 10.0 respectively, thus indicating that these soils are highly erodible compared to soils under fallow and sweet potato which have dispersion ratios and erosion indices below the minimum thresholds. Clay content was inversely proportional to and significantly correlated with dispersion ratio and erosion index while the correlations between silt + clay, dispersion ration and erosion index, and silt, silt + clay and dispersion ratio were negative and non-significant. Considering the coarse nature of soils, landscape features and high erodibility indices, these soils would need special soil and water conservation practices to counter further degradation. These may include following, agroforestry, silvi-pasture, controlled and rotational grazing. In addition, awareness of sense of self-responsibility and forest policies and regulations are needed.

关键词： Soil Erosion Land Use Agriculture Smallholders Soil Texture Erodibility Soil Fertility Deforestation

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