Sarah HUET, PhD

Agri-food Ecology & Economics

Early career researcher bridging ecology and economics, with a hands-on practice background,
to study, model, and leverage the transition of food systems.

sarah.huet@inrae.fr 🔗 ORCID GitHub LinkedIn
Work in progress

FADN2Footprint

FADN2Footprint is an R package currently under development that estimates the main environmental impacts of farms (climate, biodiversity, water) on the sole basis of their accountancy data (as recorded in the Farm Accountancy Data Network - FADN). It bridges farm-level economic data with environmental performance indicators in a life-cycle assessment spirit.

Input Data

The package supports two versions of FADN: EU level and national FADN paired with the national Land Parcel Information System (LPIS). The latter allows to mobilize spatially explicit open data (e.g. maps of hedges) to refine the estimates.

1

National FADN + Spatial Data

  • National FADN — Detailed farm accountancy data at country level
  • National LPIS — Land Parcel Identification System for spatial crop allocation
  • National hedges map — Hedge density and landscape structure data
  • Cover crop map — Ground cover and inter-crop management data
2

EU FADN

  • EU FADN — Harmonized European-level farm accountancy data, enabling cross-country comparison
+

Additional Data Sources (embedded in the package to calibrate fixed parameters)

  • Farm practices survey & feed tables — Used to derive allocation keys for inputs across activities and products
  • Emission parameters — From national Greenhouse Gas Inventories (GHGIs) or IPCC default values for footprint computation

Scope

Life Cycle Assessment spirit

Adopts an LCA-inspired methodology covering upstream and on-farm processes

Scope 3 coverage

Accounts for indirect emissions and impacts along the supply chain (purchased inputs, feed, energy)

Scale of Analysis

Country
NUTS2
Farm
Activity
Product

Farm Practices

Fertilizer quantity (mineral and organic) Pesticides use Tillage intensity Crop diversity Yields Hedge density Mean field size Ground cover Livestock density Livestock feed intake Rearing parameters (e.g. age at first calving, cull rate) Manure management

Output Indicators

Environmental Footprint

Greenhouse gas emissions Biodiversity impact Water pollution

Economic Performance

Price premium Net return of Assets Net return of Land Operating margin

Social Performance

Employment Wage level Net revenue per unsalaried working unit