Conducting an Agricultural Life Cycle Assessment: Challenges and Perspectives

Table 3

Selected life cycle inventory considerations for agriculture.

Direct sources	Indirect sources
Nutrient volatilization/leachate	Soil nutrient manufacture
Direct land use change	Indirect land use change
Livestock handling	Feed production
Fuel combustion	Fuel manufacture
Soil quality/tillage	Equipment production
Agrochemical use	Agro-chemical manufacture