Raza Ahmed

Mr. Raza Ahmed

orcid

Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 March 2025 in Processes
Verified
Journal Article
Open access
PDF file
HAHAFIZ ADNAN ASHRAF
HAFIZ ADNAN ASHRAF
JLJiajun Li
Jiajun Li
ZLZeyu Li
Zeyu Li
ASAzam Sohail
Azam Sohail
RARaza Ahmed
Raza Ahmed
HUHameed Ullah
Hameed Ullah
Punjab, the most populous province in Pakistan, is currently facing substantial electricity shortages that are adversely affecting both residential and industrial sectors. To address this issue, the Cholistan Desert presents a promising solution due to its high solar irradiance, making it an ideal location for solar energy production. This study aims to identify the most suitable area for solar photovoltaic (PV) power plants in the Cholistan Desert using Geographic Information System (GIS) and machine learning techniques. The analysis included field survey data encompassing 14 conditioning factors such as geophysical, socio-economic, and resource conditions. Three machine learning models were utilized: Random Forest, XGBoost, and Multilayer Perceptron (MLP). The Random Forest model demonstrated superior performance with an AUC of 0.92, and feature importance was measured through SHAP. The resulting suitability map indicates that Bahawalnagar in the eastern region and Bahawalpur in the central region have 10.50% and 11.06% of their areas classified as having a “high” and “very high” probability for solar PV installation, respectively. For stakeholders in the wind industry, these regions also present potential for wind farm feasibility due to favorable wind conditions and flat terrain. The methodology can be adapted to prioritize wind energy sites by incorporating factors such as land availability, wind direction, and other related factors. Co-locating solar and wind farms in these regions could optimize land use, enhance grid stability, and support Pakistan’s renewable energy targets. Future research integrating real-time solar and wind data could further refine site selection and support multi-source renewable energy planning, providing actionable insights for policymakers and investors.

27 February 2025 in Remote Sensing
Verified
Journal Article
Open access
PDF file
RARaza Ahmed
Raza Ahmed
Wenjiang HuangWenjiang Huang
Wenjiang Huang
YDYingying Dong
Yingying Dong
GJGuo Jing
Guo Jing
ZDZeenat Dildar
Zeenat Dildar
FYFangzheng Yue
Fangzheng Yue
Grasshoppers can significantly disrupt agricultural and livestock management because they reproduce and develop quickly in friendly environments. Xilingol League is the region most severely affected by grasshopper infestations. The region’s extensive grasslands are considered valuable, a critical component of the local ecosystem, a vital resource for the region’s key economic activity of livestock farming, and crucial for supporting diverse flora and fauna, carbon sequestration, and climate regulation. Oedaleus decorus asiaticus (O. d. asiaticus) is highly harmful in Xilingol League in the Inner Mongolia Autonomous Region of China. Therefore, early warning is crucial for projecting O. d. asiaticus’s regional spread and detecting the impacts of critical environmental elements. We systematically identified 26 major contributing elements by examining four categories of environmental factors—meteorology, vegetation, soil, and topography—encompassing the three growth phases of grasshoppers. Furthermore, the MaxEnt and frequency ratio (FR) approaches, coupled with multisource remote sensing data, were used to predict a potentially appropriate distribution (habitat suitability) of O. d. asiaticus in Xilingol League. The research found nine key habitat factors influencing O. d. asiaticus distribution: the mean specific humidity during the adult stage (ASH), vegetation type (VT), above-ground biomass during the nymph stage (NAB), soil sand content (SSAND), mean precipitation during the egg stage (EP), mean precipitation during the nymph stage (NP), soil bulk density (SBD), elevation, and soil type (ST). Additionally, our analysis revealed that the most suitable and moderately suitable habitats for O. d. asiaticus are predominantly located in the southern and eastern parts of Xilingol League, with significant concentrations in West Ujumqin, East Ujumqin, Xilinhot, Zhenglan, Zheng Xiangbai, Duolun, and Taipusi. Based on the suitable habitat results, policymakers may make judgments about future management actions to preserve the ecological security of grasslands and their sustainable growth. This study indicates that the Maxent approach exhibited superior accuracy (receiver operating characteristic) compared to the FR approach for assessing the habitat suitability for O. d. asiaticus in Xilingol League.

7 December 2025 in Remote Sensing
Verified
Journal Article
Open access
PDF file
RARaza Ahmed
Raza Ahmed
Wenjiang HuangWenjiang Huang
Wenjiang Huang
YDYingying Dong
Yingying Dong
ZDZeenat Dildar
Zeenat Dildar
HAHAFIZ ADNAN ASHRAF
HAFIZ ADNAN ASHRAF
ARAlua Rysbekova
Alua Rysbekova
China’s extensive grasslands are ecologically and economically vital but are increasingly degraded by grasshopper outbreaks. Traditional monitoring approaches are too limited for large-scale management. This study developed an advanced monitoring framework for the Xilingol League by integrating multi-source remote sensing, a degree-day model, and machine learning (ML). Field survey data from 2018 to 2023 were combined with 29 environmental variables aligned to grasshopper life stages. Four ML algorithms—Random Forest (RF), XGBoost, Multilayer Perceptron (MLP), and Logistic Regression (LR)—were evaluated for predictive performance. RF consistently outperformed other models, achieving the highest accuracy and robustness. Spatial autocorrelation analysis (Global Moran’s I) confirmed that grasshopper distributions were persistently clustered across all years, highlighting non-random outbreak patterns. Suitability mapping showed highly suitable habitats concentrated in East Ujumqin, West Ujumqin, and Xilinhot, with pronounced interannual variability, including a peak in 2022. Variable importance analysis identified soil type and vegetation type as dominant universal drivers, while precipitation, soil texture, and humidity exerted region-specific effects. These findings demonstrate that coupling biologically informed indicators with integrated learning provides ecologically interpretable and scalable predictions of outbreak risk. The framework offers a robust basis for early warning and targeted management, advancing sustainable pest control and grassland conservation.

27 March 2026 in Frontiers in Environmental Science
Verified
Journal Article
Open access
PDF file
RARaza Ahmed
Raza Ahmed
Wenjiang HuangWenjiang Huang
Wenjiang Huang
ZDZeenat Dildar
Zeenat Dildar
HAHafiz Adnan Ashraf
Hafiz Adnan Ashraf
MAMuhammad Ateeq
Muhammad Ateeq
ZRZahid Ur Rahman
Zahid Ur Rahman
Grasshopper outbreaks pose serious ecological and economic threats to temperate grasslands, reducing vegetation productivity and destabilizing steppe ecosystems. To enhance monitoring and prediction, this study integrated remote-sensing indicators with ensemble machine learning and a degree-day (DD) model to assess grasshopper habitat suitability in the Xilingol steppe of Inner Mongolia from 2018 to 2022. Field-based occurrence data of Oedaleus decorus asiaticus and Dasyhippus barbipes were combined with 28 environmental variables encompassing meteorological, vegetative, soil, topographic, and landscape factors. Following multicollinearity screening using tolerance, variance inflation factor (VIF), and correlation thresholds, independent predictors were used to train four algorithms—Random Forest, Multilayer Perceptron, XGBoost, and MaxEnt—whose weighted integration formed the ensemble model. Spatial autocorrelation and hotspot analyses were employed to examine distributional clustering, while suitability maps were classified into low, moderate, and high categories. The ensemble achieved the highest predictive accuracy (AUC = 0.923–0.945), outperforming individual models. Results indicated persistent spatial clustering of grasshopper occurrences, with stable hotspots around Xilinhot and East and West Ujumqin and notable expansions during favorable years (2020, 2022). Minimum temperature during the egg stage (22.6%) and fractional vegetation cover during the nymph stage (19.8%) emerged as dominant environmental drivers, followed by precipitation, elevation, and above-ground biomass. These findings underscore the central role of temperature and vegetation dynamics in shaping grasshopper habitat suitability. The integration of DD-based phenological modeling with ensemble learning provides a robust, ecologically coherent framework for regional pest monitoring, early warning, and sustainable grassland management in semi-arid ecosystems.

13 May 2026 in Sensors
Verified
Journal Article
Open access
PDF file
ZDZeenat Dildar
Zeenat Dildar
Wenjiang HuangWenjiang Huang
Wenjiang Huang
RARaza Ahmed
Raza Ahmed
ZKZeeshan Khalid
Zeeshan Khalid
Remote sensing technologies provide valuable geospatial data for analyzing environmental conditions and for supporting spatial ecological modeling across large, heterogeneous landscapes. In this study, multi-source remote sensing–derived environmental variables were integrated with ensemble machine learning techniques to model the habitat suitability of the common leopard (Panthera pardus) in Azad Jammu and Kashmir (AJ&K), Pakistan. Environmental predictors derived from satellite observations included land cover, vegetation condition, terrain attributes, and climate-related indicators. To ensure model reliability, multicollinearity among predictors was evaluated, and spatial clustering patterns of leopard occurrence records were examined using global spatial autocorrelation analysis. Two complementary machine learning algorithms, Maximum Entropy (MaxEnt) and Random Forest (RF), were implemented and integrated through a weighted ensemble approach to improve predictive accuracy and robustness. The ensemble model achieved high predictive performance with an area under the curve (AUC) value of 0.942, outperforming individual algorithms. The resulting habitat suitability map indicates that approximately 30% of the study region is highly suitable habitat, primarily in the northern and central districts, including Muzaffarabad, Neelum, Hattian, Poonch, and Sudhnutti. Variable importance analysis identified remotely sensed land cover, elevation, vegetation cover, slope, and temperature seasonality as the dominant predictors of habitat suitability, whereas anthropogenic indicators such as proximity to roads and population density had secondary effects in fragmented areas. The results demonstrate the potential of integrating remote sensing data and ensemble machine learning for spatial habitat modeling and wildlife conservation planning in mountainous ecosystems.

14 June 2025 in Environments
Verified
Journal Article
Open access
PDF file
ZDZeenat Dildar
Zeenat Dildar
Wenjiang HuangWenjiang Huang
Wenjiang Huang
RARaza Ahmed
Raza Ahmed
ZKZeeshan Khalid
Zeeshan Khalid
The common leopard (Panthera pardus) in Azad Jammu and Kashmir (AJ and K), Pakistan, is increasingly threatened by habitat fragmentation and climate change. This study employs a dual-model approach, integrating Maximum Entropy (MaxEnt) and Random Forest algorithms with multi-source remote sensing data to evaluate leopard habitat suitability. Our analysis identifies land cover (LC), fractional vegetation cover (FVC), elevation, temperature seasonality (bio4), and distance to roads (Dist_road) as the most influential habitat predictors. Leopards exhibit a strong preference for mixed forests at elevations between 1000 and 3000 m, with a suitability index of 0.83. The study identifies several unsuitable conditions including: road proximity (<0.08 km), low elevation zones ( 8 °C), and non-forested land cover types. MaxEnt demonstrated superior habitat prediction accuracy over Random Forest (AUC = 0.912 vs. 0.827). The results highlight a distinct north-to-south suitability gradient, with optimal habitats concentrated in the northern districts (Muzaffarabad, Hattian, Neelum, Bagh, Haveli, Poonch, Sudhnutti) and declining suitability in human-dominated southern areas. Based on these findings, this study underscores the urgency of targeted conservation efforts in the northern districts of AJ and K, where optimal leopard habitats are identified. The findings emphasize the need for habitat connectivity and protection measures to mitigate the impacts of habitat fragmentation and climate change. Future conservation strategies should prioritize the preservation of mixed forests and the establishment of buffer zones around roads to ensure the long-term survival of the common leopard in this region.