• Phenology-based winter wheat classification for crop growth monitoring using multi-temporal sentinel-2 satellite data 

  Newete, Solomon W.; Abutaleb, Khaled; Chirima, Johannes George; Dabrowska-Zielinska, Katarzyna; Gurdak, Radoslaw (Elsevier, 2024-12)

  Wheat is one of the most important staple crops consumed by more than four billion people in the world. However, its production is challenged by the impact of climate change which accounts for a 5.5 % reduction in wheat ...
• Developing models to detect maize diseases using spectral vegetation indices derived from spectral signatures 

  Nkuna, Basani L.; Chirima, Johannes George; Newete, Solomon W.; Nyamugama, Adolph; Van der Walt, Adriaan J. (Elsevier, 2024-09)

  Maize, a vital global crop, faces numerous challenges, including outbreaks. This study explores the use of spectral vegetation indices for the early detection of maize diseases in individual leaves based on crop phenology ...
• Unraveling the relationship between soil nutrients and maize leaf disease occurrences in Mopani district municipality, Limpopo province, South Africa 

  Nkuna, Basani L.; Chirima, Johannes George; Newete, Solomon W.; Van der Walt, Adriaan J.; Nyamugama, Adolph (MDPI, 2024-10)

  Maize is a staple crop important for food security that millions globally depend upon as an energy source, primarily due to its high starch and fat content. For growth and disease resistance, maize production requires a ...
• Synergetic use of Sentinel-1 and Sentinel-2 data for wheat-crop height monitoring using machine learning 

  Nduku, Lwandile; Munghemezulu, Cilence; Mashaba-Munghemezulu, Zinhle; Ratshiedana, Phathutshedzo Eugene; Sibanda, Sipho; Chirima, Johannes George (MDPI, 2024-06)

  Please read abstract in article.
• Seasonal monitoring of biochemical variables in natural rangelands using Sentinel-1 and Sentinel-2 data 

  Rapiya, Monde; Ramoelo, Abel; Truter, Wayne Frederick (Taylor and Francis, 2024)

  Rangelands are natural ecosystems that serve as essential sources of forage for domesticated livestock and wildlife. Therefore, accurately mapping nutrient levels in rangelands is crucial for sustainable development and ...
• Assessing species richness, diversity and assemblage of forest patches within a grassland matrix in the Afrotemperate ecosystems 

  Daemane, Mahlomola Ernest; Adelabu, Samuel; Ramoelo, Abel (Borntraeger Science Publishers, 2024-08)

  Changes in species diversity have been widely used in environmental monitoring and global change studies as an indicator of vegetation change over time. High mountain ecosystems such as the Golden Gate Highlands National ...
• The extent, perceived causes and impacts of land use and land cover change in Tyhume Valley, South Africa 

  Masiza, Wonga; Hamandawana, Hamisai; Chirima, Johannes George; Khoboko, Pitso; Parkies, Nombuso (Frontiers Media, 2023-08-25)

  There is limited knowledge on how people living in communal areas perceive land use and land cover (LULC) change and the impacts it has on sustainable access to essential ecosystem goods and services. This study used ...
• Seasonal evaluation and mapping of aboveground biomass in natural rangelands using Sentinel-1 and Sentinel-2 data 

  Rapiya, Monde; Ramoelo, Abel; Truter, Wayne Frederick (Springer, 2023-12)

  Rangelands play a vital role in developing countries’ biodiversity conservation and economic growth, since most people depend on rangelands for their livelihood. Aboveground-biomass (AGB) is an ecological indicator of ...
• The influence of fire presence and absence on grass species composition and species richness at Mountain Zebra National Park 

  Munyai, Nthabeliseni; Ramoelo, Abel; Adelabu, Samuel; Bezuidenhout, Hugo (AOSIS, 2023-04)

  It is well known that fire is a common driver in many biomes and it plays a vital role in maintaining ecosystem functioning in many South African biomes. This ecosystem process is an important determinant of plant community ...
• Effects of environmental factors on plant productivity in the mountain grassland of the Mountain Zebra National Park, Eastern Cape, South Africa 

  Munyai, Nthabeliseni; Ramoelo, Abel; Adelabu, Samuel; Bezuidehout, Hugo; Sadiq, Hassan (MDPI, 2023-12)

  The relationship between plant productivity, measured according to biomass and species richness, is a fundamental focal point in community ecology, as it provides the basis for understanding plant responses or adaptive ...
• Development of the grass LAI and CCC remote sensing-based models and their transferability using sentinel-2 data in heterogeneous grasslands 

  Tsele, Philemon; Ramoelo, Abel; Qabaqaba, Mcebisi (Taylor and Francis, 2023)

  Please read abstract in the article.
• Diversifying modelling techniques to disentangle the complex patterns of species richness and diversity in the protected afromontane grasslands 

  Mashiane, K.K. (Katlego); Ramoelo, Abel; Adelabu, Samuel (Springer, 2023-03)

  Ecological research has focused on the importance of environmental factors on spatial biodiversity variations and organisation. This is important because of scant conservation resources. We used stepwise backward selection ...
• Determination of soil electrical conductivity and moisture on different soil layers using electromagnetic techniques in irrigated arid environments in South Africa 

  Ratshiedana, Phathutshedzo Eugene; Abd Elbasit, Mohamed A. M.; Adam, Elhadi; Chirima, Johannes George; Liu, Gang; Chirima, Johannes George (MDPI, 2023-05)

  Precise adjustments of farm management activities, such as irrigation and soil treatment according to site-specific conditions, are crucial. With advances in smart agriculture and sensors, it is possible to reduce the ...
• Estimating mountainous plant species richness and diversity for monitoring global change in a protected grassland park 

  Mashiane, K.K. (Katlego); Ramoelo, Abel; Adelabu, Samuel; Damenae, Ernest (Wiley, 2023-09)

  Assessments of species diversity and richness are essential to understand present ecological and biodiversity conditions for effective conservation management strategies. Biodiversity indicators determine rangeland health ...
• Public health awareness on bat rabies among bat handlers and persons residing near bat roosts in Makurdi, Nigeria 

  Ameh, Veronica Odinya; Chirima, Johannes George; Quan, Melvyn; Sabeta, Claude Taurai (MDPI, 2022-08-26)

  Rabies is a neglected disease endemic in Asia and Africa but is still a significant public and veterinary health threat. Whilst a key delicacy for the local diet, bats are a natural reservoir host for many viral zoonotic ...
• Apportioning human-induced and climate-induced land degradation : a case of the greater Sekhukhune district municipality 

  Kgaphola, Motsoko Juniet; Ramoelo, Abel; Odindi, John; Kahinda, Jean-Marc Mwenge; Seetal, Ashwin (MDPI, 2023-03)

  Land degradation (LD) is a global issue that affects sustainability and livelihoods of approximately 1.5 billion people, especially in arid/semi-arid regions. Hence, identifying and assessing LD and its driving forces ...
• Integrating random forest and synthetic aperture radar improves the estimation and monitoring of woody cover in indigenous forests of South Africa 

  Qabaqaba, Mcebisi; Naidoo, Laven; Tsele, Philemon; Ramoelo, Abel; Cho, Moses Azong (Springer, 2023-03)

  Please read abstract in article.
• Ecosystem service valuation for a critical biodiversity area : case of the Mphaphuli community, South Africa 

  Musetsho, Khangwelo Desmond; Chitakira, Munyaradzi; Ramoelo, Abel (MDPI, 2022-09-30)

  The study of ecosystem services and the valuation of their contribution to human wellbeing is gaining increasing interest among scientists and decision-makers. The setting of this study was a critical biodiversity area on ...
• A reflection about the recent Koedoe publications (Volume 64, No 1, 2022) 

  Ramoelo, Abel (AOSIS, 2022)

  No abstract available.
• Using mulching to reduce soil surface temperature to facilitate grass production 

  Mangani, Tshepiso; Mangani, Robert; Chirima, Johannes George; Khomo, Lesego; Truter, Wayne Frederick (Elsevier, 2022-12)

  Ecosystems in semi-arid and arid Southern Africa experience high temperatures which translate to extremely hot soil surface temperatures. High soil surface temperatures lead to a decrease in seed germination and ...

View more