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With climate change and increasingly fierce international trade competition, upgrading the global value chains (GVCs) under the sustainable development mode is becoming a key transformation for China's wood industry. This study applies system dynamics theory to build a model of upgrading and evolution of the GVC of the wood industry based on sustainable green growth and uses Vensim PLE software for system simulation. The results demonstrate that (1) under the framework of sustainable green growth, the optimization of industry structure and security of resource supply play an important role in promoting the position of the GVC. (2) improving technological innovation capacity, plantation forest stock, carbon emission reduction intensity, and wage growth is essential to upgrade the wood industry's position in the GVC. (3) different policy implementations have different impacts on the coupled and coordinated development of the system, and implementing innovation-driven policies is the optimal realization path to promote the synergistic upgrading of the GVC. The findings enrich the holistic and systematic study of the evolution of GVC upgrading in traditional manufacturing industries and provide a fresh perspective for assisting the wood industry in realizing GVC upgrading under a sustainable green growth model. [Display omitted] • A framework for sustainable green growth in the Chinese wood industry is developed. • Mechanisms for upgrading the global value chain are constructed and simulated. • Industry structure and resource supply are critical in the upgrading mechanisms. • Innovation-driven policies are the optimal path for upgrading global value chains. [ABSTRACT FROM AUTHOR]

As one of the most vital wood-based products, the carbon footprint of wooden doors has received increasing attention in recent years. The studies on the carbon footprints of different types of wooden doors are few. In this study, the cradle-to-grave carbon footprints of three types of wooden doors produced in China were comparatively analyzed. Models used for calculating the total life-cycle carbon footprint of a wood-based composite door, a solid wood composite door, and a solid wood door were developed. Considering the biogenic carbon storage and its delayed emissions, the wood-based composite door, solid wood composite door, and solid wood door featured carbon footprints of 0.379, 0.257, and −0.277 kg CO 2 e per kg product, respectively. The solid wood door exhibited a negative carbon footprint, indicating that its carbon storage was higher than the carbon emission during the life cycle stage. The raw material acquisition (38%–66%) and the transportation stages (23%–38%) of the three types of wooden doors were the main contributors to the total carbon footprints (excluding the biogenic carbon). The product manufacturing stage released relatively small emissions (11%–24%). The waste disposal treatment at the end-of-life phase, the degradation of wood materials in landfills, and their service life displayed significant impacts on the carbon footprints of the three types of wooden doors. Fiberboard, laminated veneer lumber, sawn lumber, finger-jointed lumber, and electricity were identified as the main emission hotspots. This study provides guidelines for low-carbon development in the wooden door industry. [Display omitted] • The full life cycle carbon footprint of three types of wooden door were compared. • Solid wood door showed the best profile, followed by the solid wood composite door and wood-based composite door. • The disposal at the end of life significantly impacted the carbon footprint of wooden door. [ABSTRACT FROM AUTHOR]

As an industrial waste material, the utilization rate of wood processing residues in China is only 30%, and the high-efficiency utilization of wood processing residues can greatly alleviate the shortage of wood resources in China. This study suggested a novel treatment method for conserving wood resources by recycling wood processing residues as core materials for wooden doors, the feasibility of which was validated through an actual production operation in a wooden door manufacturing factory. Since the recycling process requires a series of processes, two comparison scenarios were proposed in this study in order to assess whether the recycling method can reduce the environmental impact and thus generate environmental benefits. Scenario 1 conducted a comparative LCA analysis among wood processing residues and two commonly used core materials for wooden doors, namely, tubular particleboard and laminated veneer lumber (LVL). Scenario 2 conducted a comparative LCA analysis between two treatment methods for wood processing residues, namely, recycling as core material and incineration as boiler fuel for heat production. The results revealed that using wood processing residues as a core material for wooden doors reduced the emission of approximately 7.46 kg CO2 eq of GWP and 143.77 MJ of PED when compared to tubular particleboard, but when compared to LVL, recycling of wood processing residues produced no environmental benefits but exerted a negative impact. In addition, recycling wood processing residues to replace tubular particleboard as core material for wooden doors is a superior method of disposal compared to incineration as boiler fuel for heat production. [Display omitted] • This study suggests a novel treatment method for wood processing residues. • The system boundary expansion with substitution (SBES) approach was applied. • Comparative LCA was conducted among different wood processing residue treatment methods. • Recycling wood processing residues to replace tubular particleboard is an ecological disposal method. [ABSTRACT FROM AUTHOR]