- Soil and Land Suitability Analysis
- Rangeland Management and Livestock Ecology
- Soil erosion and sediment transport
- Remote Sensing in Agriculture
- Climate change impacts on agriculture
- Groundwater and Watershed Analysis
- Wildlife Ecology and Conservation
- Hydrology and Watershed Management Studies
- Aquatic Ecosystems and Biodiversity
- Flood Risk Assessment and Management
- Energy and Environment Impacts
- Animal Diversity and Health Studies
- COVID-19 impact on air quality
- Air Quality and Health Impacts
- Land Use and Ecosystem Services
- Species Distribution and Climate Change
- Climate variability and models
- Smart Agriculture and AI
- Transboundary Water Resource Management
- Greenhouse Technology and Climate Control
- Conservation, Biodiversity, and Resource Management
- Marine animal studies overview
- Wildlife-Road Interactions and Conservation
- Oil Palm Production and Sustainability
- Science and Climate Studies
Dedan Kimathi University of Technology
2021-2024
Jomo Kenyatta University of Agriculture and Technology
2014-2020
Kenya Marine and Fisheries Research Institute
2019
Kenya Forest Service
2019
United States Geological Survey
2019
Abstract Maize production in low-yielding regions is influenced by climate variability, poor soil fertility, suboptimal agronomic practices, and biotic influences, among other limitations. Therefore, the assessment of yields to various management practices is, others, critical for advancing site-specific measures enhancement. In this study, we conducted a multiseason calibration evaluation DSSAT–CERES-Maize model assess maize yield response two common cultivars grown Trans Nzoia County Kenya...
Abstract Population growth and increasing demand for agricultural production continue to drive global cropland expansions. These expansions lead the overexploitation of fragile ecosystems, propagating land degradation, loss natural diversity. This study aimed identify factors driving use/land cover changes (LULCCs) subsequent expansion in Trans Nzoia County Kenya. Landsat images were used characterize temporal LULCCs 30 years derive using change detection. Logistic regression (LR), boosted...
Abstract Agricultural production assessments are crucial for formulating strategies closing yield gaps and enhancing efficiencies. While in situ crop measurements can provide valuable accurate information, such approaches costly lack scalability large-scale assessments. Therefore, modeling remote sensing (RS) technologies essential assessing conditions predicting yields at larger scales. In this study, we combined RS a growth model to assess phenology, evapotranspiration (ET), dynamics grid...
Remote sensing and GIS applications are being widely used for various projects relating to natural resource management. Forests very important national assets economic, environmental protection, social cultural values should be conserved in order realize all these benefits. Kenya's forests rapidly declining due pressure from increased population, technological innovation, urbanization human development other land uses. Mau forest is one of the major Kenya that a catchment area many Great...
The Ecotourism is considered as the most attractive subset of tourism industry which can contribute to natural resource conservation and local development under proper management. stable solution in developing countries for ecotourism through assessment, identification prioritization different areas with capacity support within counties country at large, then creating enabling environment infrastructure creation. This paper presents an potential enhancing socio-economic status indigenous...
Agriculture is the backbone of Kenya’s economy. in Kenya characterized by low productivity due to external inputs, lack good farming practices, soil erosion, and other losses. In most regions country, agriculture depends entirely on rainfall which sometimes scarce. The problem selecting correct land for cultivation certain crops a long-standing mainly empirical issue. objective this study extrapolate generate crop suitability map showing areas suitable agricultural activities Taita Hills...
Groundwater is one of the important necessary renewable resources world. It forms part natural water cycle that present in underground strata with principal sources being precipitation and streamflow. Traditionally, information on potential occurrence groundwater was obtained using techniques such as drilling, geophysical, geological, hydro-geological geo-electrical which are time-consuming, costly lacked full coverage. This study shows remote sensing GIS can be utilized to map a GIS-based...
Abstract Maize ( Zea mays L.) productivity in Kenya has witnessed a decline attributed to the effects of climate change and biophysical constraints. The assessment agronomic practices across agroecological zones (AEZs) is limited by inadequate data quality, hindering precise evaluation maize yield on large scale. In this study, we employed DSSAT‐CERES‐Maize crop model (where CERES Crop Environment Resource Synthesis DSSAT Decision Support System for Agrotechnology Transfer) investigate...
Accurate livestock counts are essential for effective pastureland management. High spatial resolution remote sensing, coupled with deep learning, has shown promising results in detection. However, challenges persist, particularly when the targets small and a heterogeneous environment, such as those African rangelands. This study evaluated nine state-of-the-art object detection models, four variants each from YOLOv5 YOLOv8, Faster R-CNN, detecting cattle 10 cm aerial RGB imagery Kenya. The...
Modeling the spatial distribution of soil heavy metals is important in determining safety contaminated soils for agricultural use. This study utilized 60 topsoil samples (0 - 30 cm), multispectral images (Sentinel-2), spectral indices, and ancillary data to model along Nairobi River. The was generated using Random Forest package R. Using R2 assess prediction accuracy, satisfactory results all elements. It also ranked variables order their importance overall prediction. Spectral indices were...
Climate variations all over the world have huge potential impacts to environment at large.Human and economic activities are not left behind when climate change issues concerned.Agriculture, being core human one of basic is severely hampered by variations.In Africa, specifically in Kenya, there has been rampant growing patterns some crops.Farmers lack knowledge that ascertains reason low income from their farm produce.The main research objective this study determine variation agro-ecological...
Somalia nation has been in the past classified as a volatile and of low economic value since 1990s when government was deemed to have collapsed. Currently independent is turning out be one back bone Northern Eastern parts Africa trade agriculture. This paper focuses on agricultural potential using geospatial techniques through characterization. Climate characterized described, terrain models are derived, Soil analysis hydrological assessment also analyzed. Agroclimatic maps developed show...
This study was aimed at assessing soil erosion, climate variation and how has affected both the agro climatic agro-ological zones of Kerio Valley basin. The basin faces challenges especially loss, due to massive degradation that takes place in valley. Due increase rainfall recently experienced area, most top been carried away leading excessive valley, causing loss subsequent deposition sediments Lake Kamnarok which is an oxbow lake posing it threat extinction. All these aforementioned...
The study is aimed at analyzing the risk of Taita Hills region harmful runoff and soil erosion by employing morphometric analysis change detection in a GIS environment to prioritize Taveta County. objective was characterize give hierarchy which should be conserved. methodology adopted hydrological modeling, computation, Weighted Sum Analysis (WSA) detection. Hydrological modeling vital delineating sub-watersheds stream network. Morphometric computation WSA applicable coming up with...
Wildlife conservation is essential, especially for countries like Kenya which rely on tourism as a major earner of foreign exchange. Conservation species with minimal ecological information such Grevy’s zebra, though challenge, critical to enable the future survival species. and Plains zebra have been classified endangered near-threatened by International Union Nature Natural Resources (IUCN) respectively, found mostly in Northern Ethiopia. This has due habitat degradation from livestock...
Mango remains an important tropical and sub-tropical crop, ranking as the sixth most cultivated popularacross globe. Despite thriving in many areas, regions previously dedicated to mango cultivation are undergoing a shift different agricultural pursuits due lack of sustainable mangooutput. Due spatial variability factors affecting production, not all areas suitable for production Kenya. This study aims develop Geographic Information System(GIS)and Analytical Hierarchy Process (AHP)...
The authors would like to make the following corrections their published paper [...]
<title>Abstract</title> Air pollution seriously threatens respiratory health, particularly for children under five. The majority of air pollution-related fatalities occur in low- and middle-income countries, with Africa bearing a significant burden. rapid urbanization, vehicle emissions, inadequate waste management Kenya have led to surge illnesses, such as Upper Respiratory Tract Infections (URTI) Nakuru County. To address this pressing issue, study explored the use remote sensing data...
Fisheries in Lake Victoria have been threatened by declining fish stocks and diversity, environmental degradation due to increased input of pollutants, industrial municipal waste, overfishing use unapproved fishing methods, infestation aquatic weeds especially water hyacinth, de-oxygenation a reduction the quantity quality water. Remote sensing GIS are essential tools detection grounds which is important providing sustainability for human beings allows at minimal cost optimizes effort. This...