DATAMAN

DATAMAN provides a global database of emission factors for nitrous oxide (N2O) and ammonia (NH3) from manure management systems to support quantification and refinement of greenhouse gas and ammonia emissions associated with livestock excreta and land-applied manure.

Key Features:

• Global Scope: Compiles data from 184 studies across multiple continents covering diverse climatic conditions and agricultural practices.
• Comprehensive Data Collection: Contains 5,632 observations with emission factors for N2O (approximately 56%) and NH3 (approximately 44%).
• Geographical Representation: Includes studies with substantial contributions for N2O from New Zealand, the United Kingdom, Kenya, and Brazil, and for NH3 from the United Kingdom, Denmark, Canada, and The Netherlands.
• Climatic Context: Approximately 90% of observations originate from wet temperate climates.
• Key Variables Identification: Integrates emission factors with manure characteristics, soil properties, and climatic conditions to enable identification of variables driving emissions.

Scientific Applications:

• Refinement of Emission Factors: Supports refinement of N2O and NH3 emission factors for more accurate national greenhouse gas and ammonia inventories.
• Policy Development: Provides evidence-based emission data to inform manure management policies aimed at reducing GHG and NH3 emissions.
• Research Advancements: Enables analysis of drivers of emissions across regions and climates to support climate change mitigation research.

Methodology:

Data were collated from peer-reviewed research articles, conference papers, and existing databases, and emission factors were integrated with manure characteristics, soil properties, and climatic conditions.