Timber as a forest-risk commodity: embodied socio-ecological impacts in the Brazilian supply chain
Licentiate thesis, 2023

The continued loss and degradation of forest resources is one of the largest sustainability challenges of our time. The past decades rise in global demand for agricultural and forest commodities have created unparalleled pressure on the natural resources, leading to forest destruction and associated loss in carbon stocks, invaluable biodiversity, ecosystems services, livelihoods. Timber and related wood products have long featured among top forest-risk commodities, yet we still lack elementary understanding of this supply chain and how it links consumers across the world to tropical timber extraction and associated socio-ecological impacts. The overarching goal of this research is to advance the understanding of the socio-ecological impacts embodied in the production to consumption of timber originating from Brazilian native forests. It contributes to answering two foundational questions: To what extent can we connect localities of production to consumption? How are the embodied illegality risks of the supply chain distributed? Paper I provides answers to the latter. By adapting environmentally extended input–output modelling to timber originating from Brazilian native forests, we show how distinct illegality risks can be mapped and quantified at species-level across the supply chain to overcome traceability limitations. We focus on high-value ipê hardwood from the Amazon state of Pará, a leading timber producer and contested forest frontier. We found less than quarter of all ipê entering supply chains between 2009 and 2019 is risk-free, provide insights on the geographical diversification of potential laundering strategies and show how we can use this approach to overcome the lack of traceability. Paper II expands on Paper I in further compiling data on logging permits and timber flows from state- and federal-level transport licenses substantiated by these, and assessing to what extent we can connect forest exploitation to timber flows. We find about 22% of the exploited forests can be associated to authorized areas, whereas the remaining falls within the complex land tenure patchwork of this forest frontier. Next steps include getting closer to answering: How is the embodied forest degradation risk of the supply chain distributed? This thesis may offer important insights toward this end.

Environmentally-extended input-output model

Land use

Supply chain traceability

Forest frontiers

Sustainable Forest Management (SFM)

Forest degradation

Illegal logging

Opponent: Metodi Sotirov

Author

Caroline Sartorato Silva Franca

Chalmers, Space, Earth and Environment, Physical Resource Theory

Quantifying timber illegality risk in the Brazilian forest frontier

Nature Sustainability,; Vol. In Press(2023)

Journal article

Franca,C.S.S., Persson,U.M., Cardoso,D., Damasceno,C., Ward, R.S., Souza Jr.,C. Putting numbers on (un)certainties in the timber traceability-illegality-risk nexus: the case of Pará, Brazil.

Tracing timber: assessing forest degradation impacts and illegality in Brazilian supply-chains using big data (TRACTION)

Formas (2022-00810), 2023-01-01 -- 2025-12-31.

Driving Forces

Sustainable development

Subject Categories

Environmental Sciences related to Agriculture and Land-use

Forest Science

Publisher

Chalmers

Online

Opponent: Metodi Sotirov

Related datasets

Data required for "Quantifying timber illegality risk in the Brazilian forest frontier" [dataset]

DOI: 10.5281/zenodo.8068432 URI: https://doi.org/10.5281/zenodo.8068432

More information

Latest update

10/27/2023