Layer 4: Stocks and flows
4.02. Extraction: Agriculture
Total quantities of biomass that is harvested within your boundaries. This normally includes both plants and livestock that are farmed or otherwise extracted from the environment. Local authorities or experts may be the best point to start. There is likely some sort of reporting and monitoring that happens around agriculture, but it sometimes vary by industry. Look at what authority collects these data, and how to obtain this. The more finegrained, the better.