Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Light Acquisition

Light Acquisition

In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.

Levels of Use of a GIS

Levels of Use of a GIS

Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...

Thematic Layering in GIS

Thematic Layering in GIS

In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...

Topographic Surveying and Contours

Topographic Surveying and Contours

Topographic surveying is critical for documenting the Earth's surface, focusing on capturing elevations, slopes, and natural and man-made features. It is essential in construction planning, water resource management, and land-use analysis. The primary outcome of such surveys is a topographic map, which uses contour lines to visually represent the shape and slope of the terrain, providing valuable insights into the landscape's characteristics.Contour lines are fundamental to understanding the...

Methods of Obtaining Topography

Methods of Obtaining Topography

Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Mg-integrated octopus-inspired hydrogel dressing enables autonomous adhesion and wound closure for enhanced healing via sequential microenvironment regulation.

Biomaterials·2026

Same author

Real-world pharmacological treatment of patients with hyperemesis gravidarum in 9 cities of China from 2019 to 2024: a cross-sectional analysis.

Frontiers in pharmacology·2026

Same author

The dual-path association between upward social comparison and short video addiction: parallel mediating roles of negative emotions and psychological resilience.

Frontiers in psychology·2026

Same author

Antihypertensive drug use for hypertensive disorders of pregnancy in hospitals across nine Chinese cities: a real-world data study.

BMC pregnancy and childbirth·2026

Same author

Multifunctional robotic micromanipulation system for automated cardiovascular disease therapy using zebrafish.

npj biomedical innovations·2026

Same author

A weakened diurnal weather constraint leads to longer burning hours in North America.

Science advances·2026

Search research articles

Related Experiment Video

Updated: Jan 3, 2026

Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

Published on: August 29, 2019

Modelling vegetation understory cover using LiDAR metrics.

Lisa A Venier¹, Tom Swystun¹, Marc J Mazerolle²

¹Canadian Forest Service, Great Lakes Forestry Centre, Natural Resources Canada, Saul Ste Marie, ON, Canada.

|November 28, 2019

Summary

LiDAR technology effectively predicts forest understory cover using voxel-based metrics and vertical strata. This approach enhances forest management and conservation planning by mapping understory vegetation structure.

More Related Videos

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Published on: October 24, 2025

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Published on: September 12, 2017

Related Experiment Videos

Last Updated: Jan 3, 2026

Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

Leaf Area Index Estimation Using Three Distinct Methods in Pure Deciduous Stands

Published on: August 29, 2019

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Collecting and Processing Drone-based Remotely Sensed Data for Use in Forest Recovery Monitoring

Published on: October 24, 2025

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Published on: September 12, 2017

Area of Science:

Forestry
Remote Sensing
Ecology

Background:

Forest understory vegetation is crucial for ecosystem health and management.
Accurate mapping of understory structure is challenging with current methods.
Light Detection and Ranging (LiDAR) shows promise for remote sensing of forest understory.

Purpose of the Study:

To assess the capability of LiDAR point cloud data in predicting forest understory cover.
To model ground-based understory structure using various LiDAR metrics.
To compare the performance of mixed-effects and Random Forest models for understory prediction.

Main Methods:

Ground-based understory structure data were collected across three vertical strata.
LiDAR metrics, including voxel-based, fractional cover, normalized cover, and leaf area density, were calculated.
Mixed-effects and Random Forest models were employed to predict understory cover using LiDAR metrics and vertical strata.

Main Results:

The top-ranked mixed-effects model, utilizing a voxel-based understory metric and vertical stratum, explained 87% of the variance with a 15.6% cross-validation error.
LiDAR metrics showed high correlation and explained significant variance in understory structure prediction.
While LiDAR pulse occlusion occurred in the lowest stratum, it did not impact prediction accuracy.

Conclusions:

Mixed-effects models with voxel-based LiDAR metrics and vertical strata offer the most effective approach for predicting forest understory structure.
LiDAR technology provides a valuable tool for mapping and managing forest understory vegetation.
Alternative LiDAR metrics also demonstrated effectiveness in predicting understory structure, offering flexibility in modeling approaches.