Browsing Journal Articles by Impact Area "Precision Agriculture"

Now showing items 1-11 of 11

Aboveground biomass density models for NASA’s Global Ecosystem Dynamics Investigation (GEDI) lidar mission

Author: Duncanson, L ; Kellner, JR ; Armston, J ; Dubayah, R ; Minora, DM ; Hancock, S ; Healey, SP ; Patterson, PL ; Main, Russell S ; Naidoo, Laven Date: Mar 2022 NASA’s Global Ecosystem Dynamics Investigation (GEDI) is collecting spaceborne full waveform lidar data with a primary science goal of producing accurate estimates of forest aboveground biomass density (AGBD). This paper presents the development ... Read more
Determining the wetland-dryland boundary of depressions using littoral gradient analysis of soil edaphic factors

Author: Nondlazi, Basanda X ; Cho, Moses A ; Van Deventer, Heidi ; Sieben, EJ Date: Aug 2021 Depressional wetlands are highly vulnerable to changes in land surface temperature and rainfall but little is known about their responses to future climate change. This study assessed the variation in edaphic factors between wetlands and along ... Read more
Estimating South African maize biomass using integrated high-resolution UAV and sentinel 1 and 2 datasets

Author: Naidoo, Laven ; Main, Russell S ; Cho, Moses A ; Madonsela, Sabelo ; Majozi, Nobuhle, P Date: Jul 2021 Sentinel-1 and Sentinel-2 have provided consistent hyper-temporal information (5–7 days or earlier) at high spatial resolutions (10m) on biophysical composition, structural and physiological conditions of crops in a variety of environments. ... Read more
Geospatial analysis of meteorological drought impact on Southern Africa biomes

Author: Cho, Moses A ; Chirwa, PW ; Marumbwa, FM Date: Jan 2021 Within Southern African biomes, droughts are recurrent with devastating impacts on ecological, economic, and human wellbeing. In this context, understanding the drought impact on vegetation is of extreme importance. However, information on ... Read more
Investigating the relationship between tree species diversity and landsat-8 spectral heterogeneity across multiple phenological stages

Author: Madonsela, Sabelo ; Cho, Moses A ; Ramoelo, Abel ; Mutanga, O Date: Jun 2021 The emergence of the spectral variation hypothesis (SVH) has gained widespread attention in the remote sensing community as a method for deriving biodiversity information from remotely sensed data. SVH states that spectral heterogeneity on ... Read more
Land tenure conflict and agribusiness development in sub-Saharan Africa

Author: Effossou, KA ; Cho, Moses A Date: Jun 2021 There is a growing demand of land by multinational commercial agribusinesses to meet the increasing demand for food in sub-Saharan Africa (SSA) and the export market. Land tenure system is identified as one of the factors stymieing the growth ... Read more
Machine learning modelling of crop structure within the Maize Triangle of South Africa

Author: Naidoo, Laven ; Main, Russell S ; Cho, Moses A ; Madonsela, Sabelo ; Majozi, Nobuhle, P Date: Jan 2022 Maize has been identified as a strategic commodity for the reduction of poverty and enhancement of food security in the African continent. Climate variability and difficult economic conditions are pressuring farmers to produce higher (maize) ... Read more
Predicting land degradation using Sentinel-2 and environmental variables in the Lepellane catchment of the Greater Sekhukhune District, South Africa

Author: Nzuza, P ; Ramoelo, Abel ; Odindi, J ; Mwenge Kahinda, Jean-Marc ; Madonsela, Sabelo Date: Sep 2020 Land degradation is defined as the reduction of biological and economic productivity, which impedes the capacity of the land to provide ecosystem services. There is a need to move towards near real-time monitoring of land degradation using ... Read more
Spatio-temporal analysis of built-up impervious surface area and interplay with land surface temperature in Pretoria, South Africa

Author: Adeyemi, A ; Ramoelo, Abel ; Cho, Moses A ; Strydom, J Date: Sep 2021 Evaluating changes in built-up impervious surface area (ISA) to understand the urban heat island (UHI) extent is valuable for governments in major cities in developing countries experiencing rapid urbanization and industrialization. This work ... Read more
Spectral index to improve the extraction of built-up area from WorldView-2 imagery

Author: Adeyemi, A ; Ramoelo, Abel ; Cho, Moses A ; Masemola, C Date: Apr 2021 Globally, the unprecedented increase in population in many cities has led to rapid changes in urban landscape, which requires timely assessments and monitoring. Accurate determination of built-up information is vital for urban planning and ... Read more
Tree species composition and diversity in Miombo woodlands between co-managed and government-managed regimes, Malawi

Author: Gondwe, MFK ; Geldenhuys, CJ ; Chirwa, PWC ; Assédé, ESP ; Cho, Moses A Date: Nov 2020 Comparative information on the composition and diversity in tree species associations in Miombo woodland is limited. This study assessed how tree species associations across forest reserves of Miombo woodland in Malawi varied in composition ... Read more

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Browsing Journal Articles by Impact Area "Precision Agriculture"

Browsing Journal Articles by Impact Area "Precision Agriculture"

Browse

All of ResearchSpace

This Collection

Quick Links

Legislation and compliance

General Enquiries

Social Connect