Forestry Mapping | Geosun GS-260X UAV LiDAR System

Precision Forestry Mapping with GS-260X UAV LiDAR System

Unlocking Canopy Penetration and Terrain Clarity in Hunan’s Mountain Forests

Project Overview

• Location: Hilly forest regions, Hunan Province, China

• Objective: Accurate forest terrain mapping, canopy penetration, and biomass assessment

• System Deployed: Geosun GS-260X UAV LiDAR with integrated 26MP RGB Camera

• Flight Specifications:

  • Altitude: 120 meters

  • Speed: 6 m/s

  • Platform: Multi-rotor UAV

  • Flight Coverage: ~1.4 km² per mission

Why GS-260X is Ideal for Forestry

Dense forest areas with steep terrain demand LiDAR systems that combine long range, high precision, and excellent canopy penetration. The GS-260X rises to the challenge with:

1. Powerful Penetration & Terrain Resolution

• Laser Range: Up to 300m — ideal for mountainous regions

• Triple Echo Detection: Returns multiple layers per pulse (canopy, branches, ground)

• Data Rate: 1.92 million points/sec ensures dense coverage even at lower speeds

• Point Cloud Density:

  • At 120m & 6 m/s: Exceeds 160 pts/m²

  • Reliable ground returns even under dense foliage

2. High-Accuracy Positioning System (POS)

• IMU: gSpin 310 with 200 Hz update rate

• Horizontal Accuracy: 2 cm

• Vertical Accuracy: 3 cm

• Orientation Precision:

  • Pitch/Roll: 0.005°

  • Heading: 0.017°

• Multi-GNSS Support: GPS, GLONASS, GALILEO, BDS – ensures stability in remote valleys

3. RGB Camera Integration

• Resolution: 26 MP

• Field of View: 80°

• Provides colorized point clouds and visual inspection data for tree health and species recognition

Key Results

• DTM/DSM Generation: Accurate ground surface modeling under thick canopy

• Vegetation Structure Analysis: Identification of multi-layer canopies

• Tree Height Mapping & Volume Estimation

• Digital Forestry Inventory: Classifiable point cloud data for automated tree counting

Field Observations

• Penetration Effectiveness:

  Ground visibility exceeded 85% in dense evergreen forests

• Data Quality:

  Achieved consistent point cloud density with minimal voids across ridgelines and slopes

• Processing Efficiency:

  Full-area DTM generated within 24 hours post-flight using Geosun GeoCloud Software

Forestry Team Feedback

“The GS-260X provided exceptional ground resolution despite the triple canopy. We can now extract slope, tree volume, and undergrowth models from a single dataset.”
— Project Director, Hunan Forestry Survey Unit

The performance is as following

The density of point cloud is 269.927 per square meter.
Full View of Flight Area

The points under the tree are abvious.

The accuracy is 5 cm.