Location: BR-AL - Brazil, Alagoas
The production volumes and market shares of land tenure and LUC have a high level of uncertainty, which can have large impacts in overall LCIA results (Novaes et al. 2017). However, the uncertainty associated with these data could not easily be reflected in the datasets. Uncertainty assessments should take this limitation into consideration.
Undefined unit processes (UPRs) are the unlinked, multi-product activity datasets that form the basis for all of the system models available in the ecoinvent database. This is the way the datasets are obtained and entered into the database by the data providers. These activity datasets are useful for investigating the environmental impacts of a specific activity (gate-to-gate), without regard to its upstream or downstream impacts.