Kwanghun Choi
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View article: Power law between the apparent drainage density and the pruning area
Power law between the apparent drainage density and the pruning area Open
Self-similar structures of river networks have been quantified as having diverse scaling laws. Among these, we investigated a power function relationship between the apparent drainage density ρa and the pruning area Ap, with an exponent η.…
View article: Enhancing pest control interventions by linking species distribution model prediction and population density assessment of pine wilt disease vectors in South Korea
Enhancing pest control interventions by linking species distribution model prediction and population density assessment of pine wilt disease vectors in South Korea Open
Pine wilt disease caused by pinewood nematode is one of the most destructive forest diseases, and still spreading in South Korea despite the various control efforts. Japanese pine sawyer (JPS) and Sakhalin pine sawyer (SPS) are the main ve…
View article: Power-Law between the Apparent Drainage Density and the Pruning Area
Power-Law between the Apparent Drainage Density and the Pruning Area Open
Self-similar structures of river networks have been quantified as diverse scaling laws. Among them we investigated a power functional relationship between the apparent drainage density ρa and the pruning area Ap with an exponent η. We anal…
View article: Supplementary material to "Power-Law between the Apparent Drainage Density and the Pruning Area"
Supplementary material to "Power-Law between the Apparent Drainage Density and the Pruning Area" Open
View article: Investigating the Efficacy of the Species Distribution Model by Comparing Nationwide Sampled Population Density: Cases of Monochamus Alternatus and M.Saltuarius, Vectors of Pine Wilt Nematode
Investigating the Efficacy of the Species Distribution Model by Comparing Nationwide Sampled Population Density: Cases of Monochamus Alternatus and M.Saltuarius, Vectors of Pine Wilt Nematode Open
View article: Population Dynamics of American Bullfrog (Lithobates catesbeianus) and Implications for Control
Population Dynamics of American Bullfrog (Lithobates catesbeianus) and Implications for Control Open
Lithobates catesbeianus (American bullfrog), known to be one of the notorious invasive species, was introduced to South Korea and has proliferated in the Korean natural environment for the past 25 years. The ecological impact caused by the…
View article: Comment on hess-2022-237
Comment on hess-2022-237 Open
Abstract. Self-similar structures of river networks have been quantified as diverse scaling laws. Among them we investigated a power functional relationship between the pruning area Ap and the associate…
View article: Comment on hess-2022-237
Comment on hess-2022-237 Open
Self-similar structures of river networks have been quantified as diverse scaling laws. Among them we investigated a power functional relationship between the pruning area Ap and the associated apparent drainage density ρa with an exponent…
View article: Supplementary material to "Power-Law between the Apparent Drainage Density and the Pruning Area"
Supplementary material to "Power-Law between the Apparent Drainage Density and the Pruning Area" Open
View article: Power-Law between the Apparent Drainage Density and the Pruning Area
Power-Law between the Apparent Drainage Density and the Pruning Area Open
Self-similar structures of river networks have been quantified as diverse scaling laws. Among them we investigated a power functional relationship between the pruning area Ap and the associated apparent drainage density ρa with an exponent…
View article: A Modeling Approach for Quantifying Human-Beneficial Terpene Emission in the Forest: A Pilot Study Applying to a Recreational Forest in South Korea
A Modeling Approach for Quantifying Human-Beneficial Terpene Emission in the Forest: A Pilot Study Applying to a Recreational Forest in South Korea Open
(1) Background: Recent economic developments in South Korea have shifted people’s interest in forests from provisioning to cultural services such as forest healing. Although policymakers have attempted to designate more forests for healing…
View article: Modeling the risk of illegal forest activity and its distribution in the southeastern region of the Sierra Madre Mountain Range, Philippines
Modeling the risk of illegal forest activity and its distribution in the southeastern region of the Sierra Madre Mountain Range, Philippines Open
Illegal activity within protected forests, such as illegal logging, slash-and-burn farming, and agricultural expansion, has brought many plant and animal species to the brink of extinction and threatens various conservation efforts. The Ph…
View article: Efficient dead pine tree detecting method in the Forest damaged by pine wood nematode (<i>Bursaphelenchus xylophilus</i>) through utilizing unmanned aerial vehicles and deep learning-based object detection techniques
Efficient dead pine tree detecting method in the Forest damaged by pine wood nematode (<i>Bursaphelenchus xylophilus</i>) through utilizing unmanned aerial vehicles and deep learning-based object detection techniques Open
Pine wood nematode (Bursaphelenchus xylophilus) is an invasive pathogen in South Korea, where it has caused pine wilt disease (PWD) with extremely high mortality of native pine species (Pinus densiflora, Pinus thunbergii, and Pinus koraien…
View article: Redistribution patterns of soil and soil nutrients : A study using process-oriented and machine-learning approaches, with applications to mountain catchments under monsoon climate
Redistribution patterns of soil and soil nutrients : A study using process-oriented and machine-learning approaches, with applications to mountain catchments under monsoon climate Open
Soil erosion is one of the significant environmental problems worldwide, causing surface soil degradation and freshwater deterioration. As the world’s population increases, the problem is worsening because erosion-resistant natural ecosyst…
View article: Evaluating the Effectiveness of Spatially Reconfiguring Erosion Hot Spots to Reduce Stream Sediment Load in an Upland Agricultural Catchment of South Korea
Evaluating the Effectiveness of Spatially Reconfiguring Erosion Hot Spots to Reduce Stream Sediment Load in an Upland Agricultural Catchment of South Korea Open
Upland agricultural expansion and intensification cause soil erosion, which has a negative impact on the environment and socioeconomic factors by degrading the quality of both nutrient-rich surface soil and water. The Haean catchment is a …
View article: Environmental drivers of spatial patterns of topsoil nitrogen and phosphorus under monsoon conditions in a complex terrain of South Korea
Environmental drivers of spatial patterns of topsoil nitrogen and phosphorus under monsoon conditions in a complex terrain of South Korea Open
Nitrogen (N) and phosphorus (P) in topsoils are critical for plant nutrition. Relatively little is known about the spatial patterns of N and P in the organic layer of mountainous landscapes. Therefore, the spatial distributions of N and P …
View article: Daily Based Morgan–Morgan–Finney (DMMF) Model: A Spatially Distributed Conceptual Soil Erosion Model to Simulate Complex Soil Surface Configurations
Daily Based Morgan–Morgan–Finney (DMMF) Model: A Spatially Distributed Conceptual Soil Erosion Model to Simulate Complex Soil Surface Configurations Open
In this paper, we present the Daily based Morgan–Morgan–Finney model. The main processes in this model are based on the Morgan–Morgan–Finney soil erosion model, and it is suitable for estimating surface runoff and sediment redistribution p…
View article: Commentary on 'Modified MMF (Morgan-Morgan-Finney) model for evaluating effects of crops and vegetation cover on soil erosion' by Morgan and Duzant (2008)
Commentary on 'Modified MMF (Morgan-Morgan-Finney) model for evaluating effects of crops and vegetation cover on soil erosion' by Morgan and Duzant (2008) Open
The Morgan-Morgan-Finney (MMF) model is a widely used semi-physically based soil erosion model that has been tested and validated in various land use types and climatic regions. The latest version of the model, the modified MMF (MMMF) mode…