Forests, Journal Year: 2024, Volume and Issue: 15(9), P. 1542 - 1542

Published: Sept. 1, 2024

This study aimed to delve deeper into the alterations in microbial residual carbon (MRC) accumulation Yangtze River’s wetland ecosystems as a consequence of afforestation and evaluate their impact on soil organic (SOC). The hypothesis posited that could foster aggregation by augmenting arbuscular mycorrhizal fungi (AMF) hyphae glomalin-related protein (GRSP) deep soil, thereby suppressing proliferation genes pivotal residue decomposition enhancing MRC accumulation. We collected samples at 0–20, 20–40, 40–60, 60–80 80–100 cm respectively. Metagenomic sequencing, quantification amino sugars MRC, aggregate distribution profiling measurement AMF mycelium length density alongside GRSP levels were analyzed. Our findings showed notably elevated concentration total fungal with increases ranging from 53%–80% 82%–135%, respectively, across five depths examined, stark contrast eroded, non-afforested control. role SOC was observed escalate increasing depth, markedly amplifying this contribution within 40–60 cm, layers. concludes content horizons post-afforestation witnessed significant rise, paralleled substantial increase both which exhibited robust positive correlation levels. underscores sugar residues plays retention layers afforested regions, challenging conventional wisdom plant are recalcitrant forested matrices.

Language: Английский