CarbonView: Tree Inventory & Carbon Stock Management

CarbonView is a geospatial web platform designed to map, monitor, and analyze tree inventories and carbon storage with spatial precision. It helps organizations, academic institutions, and policymakers track tree data, estimate carbon sequestration, and assess environmental impact across different locations.

This system enables users to make data-driven decisions for urban greening projects, carbon stock assessments, and sustainable ecosystem management.

Key Features

• Tree Inventory Mapping – Capture and visualize detailed tree data, including species, diameter, height, and estimated carbon storage.
• Carbon Stock Analysis – Assess and quantify carbon sequestration potential based on scientifically backed formulas.
• Real-Time Data Collection – Enable field teams to log tree data instantly using LINE Bot integration, allowing seamless updates from mobile devices.
• Geospatial Insights – Analyze spatial patterns, detect deforestation risks, and plan reforestation projects effectively.
• Multi-Organization Collaboration – Supports multiple stakeholders, including universities, municipalities, and environmental agencies, for data sharing and impact assessment.
• Custom Dashboards & Reports – Generate visual reports on carbon stock trends, tree distributions, and ecosystem benefits.

Integration with Srinakharinwirot University

CarbonView is actively used for tree inventory data collection and environmental studies at Srinakharinwirot University (SWU). This collaboration allows researchers and students to contribute real-time data on campus greenery, monitor carbon sequestration, and support urban forestry initiatives.

A LINE Bot system has been developed for SWU, enabling efficient field data collection through QR code-based reporting. This enhances community engagement, environmental awareness, and sustainability planning.

Carbon Storage Calculation Methods

Formula for Calculating Tree Height Using a Clinometer

H = D × tan(θ) + ℎ

Note

• H = Tree height (meters)
• D = Distance from the tree base to the measurement position (meters)
• θ = Angle of elevation measured using a clinometer (degrees)
• ℎ = Height from ground to the observer's eye level (meters)

Formula for Calculating DBH (Diameter at Breast Height)

DBH = C / π​

Note

• DBH = Diameter at breast height (meters)
• C = Circumference at breast height (meters)
• π = Constant approximately 3.14159

Formulas for Calculating Tree Biomass by Category

• General Tree Species

  W_S = 0.0396 × (D²H)^0.933

  W_B = 0.00349 × (D²H)^1.030

  W_L = (28 / (W_S + W_B) + 0.025)^-1

  W_T = W_S + W_B + W_L

• Mangrove Species

  W_S = 0.05466 × (D²H)^0.945

  W_B = 0.01579 × (D²H)^0.9124

  W_L = 0.0678 × (D²H)^0.5806

  W_T = W_S + W_B + W_L

• Palm Species

  W_T = 6.666 + 12.826 × H^0.5 × ln(H)

• Bamboo Species

  Forest Bamboo - W_T = 0.1466 H^0.7187

• Climbers and Vines

  Forest Bamboo - W_T = 0.8622 H^2.0210

Note

• W_S = Weight of the stem (kg)
• W_B = Weight of the branches (kg)
• W_L = Weight of the leaves (kg)
• W_T = Total above-ground biomass (kg)
• D = Diameter of the trunk at 1.30 meters height
• H = Total tree height (meters)

Formula for Calculating Total Biomass

• AGB (Above Ground Biomass)

  AGB = a × (DBH^b) × (H^c)

Note

• AGB = Above-ground biomass (kg)
• DBH = Diameter at breast height (cm)
• H = Tree height (meters)
• a, b, c = Constants derived from research specific to the area or tree species
• BGB (Below Ground Biomass)

  BGB = AGB × r

Note

• BGB = Below-ground biomass (kg)
• r = Ratio factor relating AGB and BGB (typically between 0.2 and 0.4 depending on tree species)
• Total Biomass

  Total Biomass = AGB + BGB

Formula for Calculating Carbon Content in Trees

Carbon Content (kgC) = Biomass (kg) × f_c

Note

• Biomass = Total tree biomass in kilograms
• f_c = Carbon fraction of biomass (typically 0.47 or 0.5, meaning 50% of biomass is carbon)

Formula for Calculating Greenhouse Gas Sequestration

• Convert Carbon Content (kg) to Carbon Dioxide (CO₂)

  CarbonS1 (KgCO₂) = Carbon Content × ( 44 / 12 )

Note

• The mass ratio of Carbon (C) in Carbon Dioxide (CO₂) is calculated as 12 / 44, where:
  • Atomic mass of Carbon (C) = 12
  • Atomic mass of Carbon Dioxide (CO₂) = 44
• Convert Kilograms to Tons

  CarbonSeq (tonCO₂) = CarbonS1 / 1000