Converting carbon vulnerable lands to wood plantations for use as building materials: overall environmental performance and time-dependent assessment of carbon dioxide removals - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Cleaner Production Année : 2023

Converting carbon vulnerable lands to wood plantations for use as building materials: overall environmental performance and time-dependent assessment of carbon dioxide removals

Zhou Shen
Lorie Hamelin
Ligia Tiruta-Barna

Résumé

Bioeconomy addresses the triple balancing challenge posed by the Paris Agreement: inducing additional GHG mitigation alongside biophysical carbon dioxide removals, while keeping fossil carbon in the ground. The use of woody plants as construction materials could simultaneously address this challenge: CO2 is absorbed through photosynthesis, while wood-based products provide mitigation by replacing either petrochemical materials such as plastic boards or energyintensive materials like bricks. This study combines, at the scale of France, static and dynamic life cycle assessment with soil carbon simulations to investigate the long-term environmental performance of using, as input for the building sector, black locust (Robinia pseudoacacia L.) planted on "carbon vulnerable lands". These are areas specifically selected for their low soil organic carbon (SOC) levels and low potential to interfere with food security. After the consecutive cultivation of three rotations, black locust was shown to stock an additional 92000 kg ha-1 of carbon in soils as SOC. The mitigation effect from the plastic board replacement is the major contributor to the assessed environmental impacts, including climate change, leading the black locust system to generally perform better than the reference system where the carbon vulnerable areas are left as they are with their initial vegetation. Considering that cultivation starts in 2022, the dynamic evaluation of the global mean temperature change (GMTC) shows that the black locust system results in net negative emissions in the near-and mid-term, but with a GMTC overshot in the second half of the century. Even if a considerable carbon stock is created through time (e.g., 81% and 39% of the carbon captured by photosynthesis, in 2050 and 2100 respectively), the GHG emissions stemming from manufacturing and end-of-life processes were shown to offset the benefit of carbon capture.
Fichier principal
Vignette du fichier
Shen, Hamelin, Tiruta-Barna, JCLEPROD 2023.pdf (1.76 Mo) Télécharger le fichier
Black locust inventory Zhou 17122022.xlsx (1.49 Mo) Télécharger le fichier
Supplementary Material.pdf (2.17 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04335081 , version 1 (11-12-2023)

Identifiants

Citer

Zhou Shen, Lorie Hamelin, Ligia Tiruta-Barna. Converting carbon vulnerable lands to wood plantations for use as building materials: overall environmental performance and time-dependent assessment of carbon dioxide removals. Journal of Cleaner Production, 2023, 388, pp.136040. ⟨10.1016/j.jclepro.2023.136040⟩. ⟨hal-04335081⟩
30 Consultations
12 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More