Kabir Peerbhay
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View article: Understanding forest sap flow velocity through satellite based remote sensing platforms: A time series analysis
Understanding forest sap flow velocity through satellite based remote sensing platforms: A time series analysis Open
The impacts of climate on forestry will influence the tree species planted for commercial use and the ability to adapt to drastic changes in the environment. These changes have promoted the use of technologies such as remote sensing, to mo…
View article: Mapping Commercial Forests Infected by the Novel Variant of Elsinoë masingae, Using Unmanned Aerial Technology in Southern Africa
Mapping Commercial Forests Infected by the Novel Variant of Elsinoë masingae, Using Unmanned Aerial Technology in Southern Africa Open
Eucalyptus scab disease (Elsinoë) is a harmful plant fungus that can disrupt various ecological and economic services provided by commercial forests. To effectively control and monitor the occurrence of forest pathogens, it is important to…
View article: Exploring forest rehabilitation and restoration: A brief systematic review
Exploring forest rehabilitation and restoration: A brief systematic review Open
Ecosystem services are essential to global environmental policy, highlighting the critical role of forests as providers of these services. However, extensive deforestation threatens access to these vital services. This underscores the urge…
View article: Remote Sensing Applications in Agricultural, Earth and Environmental Sciences
Remote Sensing Applications in Agricultural, Earth and Environmental Sciences Open
Remote sensing has become an essential tool in agricultural, earth and environmental sciences and offers significant insights into land use changes, climate variability, and resource management [...]
View article: Investigating the Capabilities of Thermal Technologies to Detect Tree Stress in Commercial Forestry Compartments
Investigating the Capabilities of Thermal Technologies to Detect Tree Stress in Commercial Forestry Compartments Open
View article: Multi-Aged Eucalyptus Tree Crown Detection from Lidar and Multispectral Data
Multi-Aged Eucalyptus Tree Crown Detection from Lidar and Multispectral Data Open
View article: The use of suitability models and remote sensing to map forest suitability: a systematic review
The use of suitability models and remote sensing to map forest suitability: a systematic review Open
View article: Optimising forest rehabilitation and restoration through remote sensing and machine learning: Mapping natural forests in the eThekwini Municipality
Optimising forest rehabilitation and restoration through remote sensing and machine learning: Mapping natural forests in the eThekwini Municipality Open
Forests are crucial in delivering ecosystem services that underpin human well-being and biodiversity conservation. However, these vital ecosystems are threatened by forest degradation and rapid urbanisation. This study addresses this chall…
View article: A machine learning approach to mapping suitable areas for forest vegetation in the eThekwini municipality
A machine learning approach to mapping suitable areas for forest vegetation in the eThekwini municipality Open
Driven by climate change, global forests are undergoing significant transformations in growth, ecology, and distribution, necessitating informed restoration and conservation strategies, particularly in the eThekwini Municipality where anth…
View article: Estimating high-density aboveground biomass within a complex tropical grassland using Worldview-3 imagery
Estimating high-density aboveground biomass within a complex tropical grassland using Worldview-3 imagery Open
View article: Comparing the Utility of Artificial Neural Networks (ANN) and Convolutional Neural Networks (CNN) on Sentinel-2 MSI to Estimate Dry Season Aboveground Grass Biomass
Comparing the Utility of Artificial Neural Networks (ANN) and Convolutional Neural Networks (CNN) on Sentinel-2 MSI to Estimate Dry Season Aboveground Grass Biomass Open
Grasslands are biomes of significant fiscal, social and environmental value. Grassland or rangeland management often monitors and manages grassland productivity. Productivity is determined by various biophysical parameters, one such being …
View article: A Hybrid Method for Enhancing Individual Tree Crown Delineation Using Multispectral and Lidar Data
A Hybrid Method for Enhancing Individual Tree Crown Delineation Using Multispectral and Lidar Data Open
View article: The use of synthetic aperture radar technology for crop biomass monitoring: A systematic review
The use of synthetic aperture radar technology for crop biomass monitoring: A systematic review Open
In agriculture, crop biomass is a vital indicator of the overall health of an ecosystem. Recent developments in synthetic aperture radar (SAR) technologies have promoted the application of SAR remote sensing for agricultural monitoring. SA…
View article: Comparison of different spectral indices to differentiate the impact of insect attack on planted forest stands
Comparison of different spectral indices to differentiate the impact of insect attack on planted forest stands Open
Eucalyptus plantations are an important contributor to the South African economy and are geographically concentrated in the productive Zululand region. However, this area is becoming increasingly vulnerable to various forest disturbances s…
View article: The Detection of Nitrogen Saturation for Real-Time Fertilization Management within a Grassland Ecosystem
The Detection of Nitrogen Saturation for Real-Time Fertilization Management within a Grassland Ecosystem Open
Unfettered agricultural activities have severely degraded vast areas of grasslands over the last decade. To rehabilitate and restore the productivity in affected grasslands, rangeland management practices still institute vast nitrogen-base…
View article: Detecting canopy damage caused by Uromycladium acaciae on South African Black Wattle forest compartments using moderate resolution satellite imagery
Detecting canopy damage caused by Uromycladium acaciae on South African Black Wattle forest compartments using moderate resolution satellite imagery Open
Uromycladium acaciae, also known as wattle rust, is a rust fungus that has adversely impacted black wattle (Acacia mearnsii) in South Africa. This study assessed the potential of the Landsat 8 multispectral sensor to detect canopy damage c…
View article: Estimation of foliar nitrogen using remotely sensed data: A quantitative review
Estimation of foliar nitrogen using remotely sensed data: A quantitative review Open
Several ecosystems have been significantly altered by anthropogenic nitrogen inputs. The timely estimation of nitrogen concentration is essential for ensuring environmental sustainability. Academic publications between 1966 and 2016 were r…
View article: Modelling the effect of terrain variability in even-aged Eucalyptus species using LiDAR-derived DTM variables
Modelling the effect of terrain variability in even-aged Eucalyptus species using LiDAR-derived DTM variables Open
Accurate multi-source forest inventory attributes are necessary for estimating productivity and timber stock in commercial forest plantations. This study aims to uncover the effects of terrain variation on the growth of even aged Eucalyptu…
View article: Detecting nutrient deficiencies in Eucalyptus grandis trees using hyperspectral remote sensing and random forest
Detecting nutrient deficiencies in Eucalyptus grandis trees using hyperspectral remote sensing and random forest Open
Nutrient deficiencies in commercial forest trees often lead to stunted growth and reduced chances of field survival, resulting in a loss of time, productivity, and trees that can become more susceptible to a host of infections. While conve…
View article: Mapping carbon content in a mountainous grassland using SPOT 5 multispectral imagery and semi-automated machine learning ensemble methods
Mapping carbon content in a mountainous grassland using SPOT 5 multispectral imagery and semi-automated machine learning ensemble methods Open
View article: Burned Area Mapping over the Southern Cape Forestry Region, South Africa Using Sentinel Data within GEE Cloud Platform
Burned Area Mapping over the Southern Cape Forestry Region, South Africa Using Sentinel Data within GEE Cloud Platform Open
Planted forests in South Africa have been affected by an increasing number of economically damaging fires over the past four decades. They constitute a major threat to the forestry industry and account for over 80% of the country’s commerc…
View article: Forest canopy gaps offer a window into the future:The case of subtropical coastal forests within an urban matrix in South Africa
Forest canopy gaps offer a window into the future:The case of subtropical coastal forests within an urban matrix in South Africa Open
Aim of the study: Alien and indigenous species emergence patterns within canopy gaps in urban subtropical forests are poorly understood. This study compared canopy gap floristics in relation to abiotic and physical characteristics across t…
View article: Detecting Harvest Events in Plantation Forest Using Sentinel-1 and -2 Data via Google Earth Engine
Detecting Harvest Events in Plantation Forest Using Sentinel-1 and -2 Data via Google Earth Engine Open
South Africa is reported to experience timber shortages as a result of growing timber demands and pulp production, coupled with the government’s reluctance to grant new forestry permits. Rampant timber theft in the country makes these circ…
View article: Estimating soil organic carbon stocks under commercial forestry using topo-climate variables in KwaZulu-Natal, South Africa
Estimating soil organic carbon stocks under commercial forestry using topo-climate variables in KwaZulu-Natal, South Africa Open
Commercial forests are expanding globally, with great potential to absorb carbon and mitigate climate change. However, whereas the role of natural forests in carbon sequestration has been widely investigated, there is a paucity in the lite…
View article: Testing the utility of multivariate techniques in mapping commercial forest species using freely available Landsat 8 Operational Land Imager (OLI)
Testing the utility of multivariate techniques in mapping commercial forest species using freely available Landsat 8 Operational Land Imager (OLI) Open
Reliable species discrimination remains essential for the management of commercial forests. Therefore, this study sought to evaluate the utility of Partial Least Squares Linear Discriminant Analysis (PLS-LDA) and Partial Least Squares-Disc…
View article: Feature Selection on Sentinel-2 Multispectral Imagery for Mapping a Landscape Infested by Parthenium Weed
Feature Selection on Sentinel-2 Multispectral Imagery for Mapping a Landscape Infested by Parthenium Weed Open
In the recent past, the volume of spatial datasets has significantly increased. This is attributed to, among other factors, higher sensor temporal resolutions of the recently launched satellites. The increased data, combined with the compu…
View article: Unsupervised Clustering of Forest Response to Drought Stress in Zululand Region, South Africa
Unsupervised Clustering of Forest Response to Drought Stress in Zululand Region, South Africa Open
Drought limits the production of plantation forests, notably in the drought-prone Zululand region of South Africa. During the last 40 years, the country has faced a series of severe droughts, however that of 2015 stands out as the most ext…
View article: Detecting and mapping Gonipterus scutellatus induced vegetation defoliation using WorldView-2 pan-sharpened image texture combinations and an artificial neural network
Detecting and mapping Gonipterus scutellatus induced vegetation defoliation using WorldView-2 pan-sharpened image texture combinations and an artificial neural network Open
Defoliation induced by the weevil Gonipterus scutellatus is causing significant damage to South Africa's eucalyptus plantations. Therefore, the ability of remote sensing to detect and map G. scutellatus defoliation is essential for monitor…
View article: Using Sentinel-2 Multispectral Images to Map the Occurrence of the Cossid Moth (Coryphodema tristis) in Eucalyptus Nitens Plantations of Mpumalanga, South Africa
Using Sentinel-2 Multispectral Images to Map the Occurrence of the Cossid Moth (Coryphodema tristis) in Eucalyptus Nitens Plantations of Mpumalanga, South Africa Open
Coryphodema tristis is a wood-boring insect, indigenous to South Africa, that has recently been identified as an emerging pest feeding on Eucalyptus nitens, resulting in extensive damage and economic loss. Eucalyptus plantations contribute…
View article: Assessing the Trade-Offs of SPOT7 Imagery for Monitoring Natural Forest Canopy Intactness
Assessing the Trade-Offs of SPOT7 Imagery for Monitoring Natural Forest Canopy Intactness Open
Natural and human-induced disturbances influence the biodiversity and functionality of forest ecosystems. Regular, repeated assessments of canopy intactness are essential to map site-specific forest disturbance and recovery patterns, an es…