Agriculture — Savanna fires Emissions
| Object type | Damage Signal |
|---|---|
| SIGNAL Earth ID | DS-00891 |
| Observable type | — |
| Unit | — |
| Temporal structure | — |
| Monitoring backbone | — |
Agriculture — Savanna fires Emissions refer to the release of carbon dioxide (CO2) and other gases into the atmosphere resulting from the burning of savanna vegetation primarily for agricultural purposes. These fires are a common land management practice in many tropical and subtropical regions, used to clear land, manage pasture, and stimulate new plant growth. The emissions from such fires contribute to atmospheric greenhouse gas concentrations and have implications for regional air quality and global climate dynamics.
Savanna ecosystems, characterized by a mix of grasses and scattered trees, cover extensive areas in continents such as Africa, South America, and Australia. The burning of these landscapes for agricultural management is a significant source of CO2 emissions associated with land use change. Understanding and quantifying these emissions is essential for assessing their role within the global carbon cycle and for informing environmental monitoring frameworks.
Within the broader context of environmental monitoring, Agriculture — Savanna fires Emissions represent a distinct category of biomass burning emissions linked to agricultural activity. These emissions are monitored and analyzed to track their spatial and temporal patterns, contributing to assessments of land use impacts on atmospheric composition.
Geographic / System Context
[edit]Savanna ecosystems where agricultural fires occur are widely distributed across tropical and subtropical regions, including the African savannas, parts of South America such as the Cerrado, and northern Australia. These regions are characterized by seasonal rainfall patterns and vegetation adapted to periodic fire regimes. Agricultural practices involving savanna fires vary locally but generally involve controlled burns to clear vegetation, manage grazing lands, or prepare fields for planting. The geographic extent of these fires is not confined to a single country or region, reflecting the broad distribution of savanna landscapes used for agriculture.
Monitoring and Measurement
[edit]Monitoring of Agriculture — Savanna fires Emissions relies on a combination of satellite remote sensing, ground-based observations, and emission inventory modeling. Satellite instruments detect active fires and burned areas, providing data on fire occurrence, extent, and intensity. These observations are integrated with vegetation and fuel load information to estimate emissions. Scientific institutions and global monitoring programs compile biomass burning emission inventories using multi-source data and modeling frameworks. The recently developed Multi-ensemble Biomass-burning Emissions Inventory (MBEI) exemplifies advances in characterizing spatiotemporal uncertainty in global biomass burning emissions, including those from savanna fires used in agriculture.
Within the SIGNAL system, this phenomenon is treated as a defined environmental signal whose boundaries and measurement conventions are described below.
Signal Definition
[edit]Agriculture — Savanna fires Emissions are defined as the carbon dioxide emissions resulting from the combustion of savanna vegetation specifically associated with agricultural land management practices. This signal quantifies the CO2 released during controlled or uncontrolled fires set to clear or manage savanna landscapes for agricultural use. The measurement encompasses emissions from aboveground biomass and associated organic material combusted during these fire events.
Boundary Conditions
[edit]Boundary inclusions for this signal encompass all CO2 emissions generated by fires occurring in savanna ecosystems where the primary purpose is agricultural land management, including land clearing, pasture maintenance, and crop preparation. Emissions from naturally occurring wildfires or fires unrelated to agricultural activity, such as those caused by lightning or accidental ignition, are excluded. Additionally, emissions from burning outside savanna biome classifications, such as forest or grassland fires not associated with agriculture, are not included within this signal.
Aggregation Semantics
[edit]Geographically, Agriculture — Savanna fires Emissions can be aggregated across savanna regions globally or within specific countries or administrative units to assess spatial emission patterns. Temporally, aggregation may occur at daily, monthly, or annual intervals to capture fire seasonality and interannual variability. Cross-signal aggregation involves integrating this signal with other biomass burning emissions, land use change signals, and atmospheric composition data to provide comprehensive assessments of carbon fluxes and air quality impacts. Aggregation methods account for variations in fire intensity, extent, and fuel consumption to produce representative emission estimates.
Observational Status
[edit]Current monitoring of Agriculture — Savanna fires Emissions benefits from satellite-based fire detection and biomass burning emission inventories that provide regular updates on fire activity and associated emissions. However, uncertainties remain in quantifying fuel loads, combustion completeness, and spatial variability of fires. The Multi-ensemble Biomass-burning Emissions Inventory (MBEI) represents a recent advancement in addressing these uncertainties by integrating multiple data sources and modeling approaches. Future SIGNAL releases may enhance temporal resolution, incorporate additional greenhouse gas species, and improve spatial attribution of emissions within savanna agricultural landscapes.
Related Signals
[edit]- None specified
Key Associated People
[edit]- Roland Vernooij — Vrije Universiteit Amsterdam [Source author; High]
- X. Liu — - [Source author; High]
Inclusion reflects material contribution to the scientific understanding of this damage signal; it does not imply review, endorsement, or affiliation with SIGNAL Earth.
Sources
[edit]- The newly developed Multi-ensemble Biomass-burning Emissions Inventory (MBEI): characterizing and unraveling spatiotemporal uncertainty in global biomass burning emissions — 2026. [Dataset; Anchor; High]
- Emissions mitigation opportunities for savanna countries from early dry season fire management — Environmental Research Letters, 2018. DOI: 10.1088/1748-9326/aae1a3. [Paper; Supporting; High]
- Global Fire Emissions Database, Version 4.1 (GFEDv4) — NASA Open Data Portal, 2018. DOI: 10.5067/VEGETATION/GFED4.1/1.0. [Dataset; Supporting; High]
- Measurements of savanna landscape fire emission factors for CO₂, CO, CH₄, and N₂O using a UAV-based sampling methodology — Zenodo, 2021. DOI: 10.5281/zenodo.7695798. [Dataset; Supporting; High]