Work

Intrinsic nutrients and defensive compounds drive coarse woody debris decay in five dominant subtropical tree species, China

Year: 2025

Type: article

Abstract: ). Fast-decaying species were characterized by high hemicellulose, cellulose, and phosphorus (P) content, with rapid P release within the first decay year and nitrogen (N) accumulation over time. Tannin initially inhibited decay in fast-decaying species, but defensive compounds (tannins and phenolics) showed no sustained effect on decomposition rates. These findings indicate active CWD decomposition in subtropical forests, where P limitation outweighs N for broadleaves and bamboo. Defensive compounds only weakly influenced early-stage decay. Our results enhance the understanding of deadwood decomposition and carbon sink dynamics in subtropical ecosystems.

Source: iScience

DOI: 10.1016/j.isci.2025.112961

Authors: Xiaoyu Wang, Tingsi Xie, Hui Chen, Shangbin Bai, Nan Wang

Institutions: Jiyang College of Zhejiang A&F University, Zhejiang A & F University

Language: English

Topic: Forest Ecology and Biodiversity Studies

Subfield: Insect Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Life on land

Open Access status: gold

Estimated APC paid: $3,240