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All Journal Journal of Geographical Sciences and Education
Njeru, Moses Kathuri
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Astronomy Education

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Intensitas Penerapan Strategi Mitigasi Kekeringan di antara Rumah Tangga di Sub-Kabupaten Tharaka Selatan, Kenya Mukami, Nyaga Mary; Njeru, Moses Kathuri; Njue, Paul Nyaga
Journal of Geographical Sciences and Education Vol 3 No 2 (2025): Journal of Geographical Sciences and Education
Publisher : PT. Pubsains Nur Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69606/geography.v3i2.221

Abstract

Recent uncertainties in rainfall amount and intensity have increased drought. This situation has prompted the need to assess the intensity of the adoption of the drought mitigation strategy. This study analyzed ten drought mitigation strategies (DMS) among households using the descriptive statistical approach in Tharaka South Sub-County, Kenya. About 397 samples from 18,623 households and 3 key informants were selected as informants. They were selected using cluster random sampling and purposive sampling, respectively. Data collection was done through questionnaires, interviews, and observations. The study revealed that planting drought-tolerant crops (89.7%), crop diversification (84.2%), and rainwater harvesting (78.1%) were among the top three widely adopted DMS for drought mitigation. Community programs (23.2%), irrigation (15.1%), and soil conservation (6.1%) had low adoption among households. The households are more likely to adopt simple strategies. Therefore, policy support is needed for less implemented strategies, such as soil conservation and irrigation.
Influence of Urban Sprawl on Spatial-Temporal Changes Along Rupingazi Riverine Ecosystem, Embu County, Kenya Riungu, James Muthomi; Njeru, Moses Kathuri; Nkoroi, Medrine Cirindi
Journal of Geographical Sciences and Education Vol 4 No 1 (2026): Journal of Geographical Sciences and Education
Publisher : PT. Pubsains Nur Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69606/geography.v4i1.408

Abstract

Urban sprawl refers to the unplanned expansion of urban areas, typically leading to inefficient land use and environmental degradation. This study analyzes the impact of urban sprawl on the Rupingazi River ecosystem between 1989 and 2019 using Landsat satellite imagery. Analysis of NDBI values revealed a consistent distinction between built-up and non-built-up areas, with built-up surfaces recording higher positive values across all periods. The findings show a significant transformation within Embu County. In 1989, non-built-up land and vegetation dominated the landscape at 4.7 km2 (70.47%). By 1999, this declined to 4.46 km2 (56.89%) as built-up areas expanded to 3.38 km2 (43.11%). A critical shift occurred in 2009, when built-up areas (4.58 km2; 51.93%) overtook natural cover (48.07%) for the first time. By 2019, urban surfaces reached 6.04 km2 (68.17%), leaving only 31.83% natural cover. These trends necessitate stricter zoning enforcement, riparian buffer protection, and compact development strategies. Urban planners must integrate geospatial monitoring to mitigate environmental pressure on the Rupingazi riverine ecosystem.
Co-Authors Mukami, Nyaga Mary Njue, Paul Nyaga Nkoroi, Medrine Cirindi Riungu, James Muthomi