Comparative analysis of rhizosphere soil between three plantation types in Karst Rocky Desertification area by widely targeted metabolomics

PeerJ, Journal Year: 2025, Volume and Issue: 13, P. e19131 - e19131

Published: March 31, 2025

Understanding the differences in rhizosphere soil microbial metabolites between severely and mildly rocky desertified areas is crucial for developing ecological restoration strategies land management measures desertification regions. This study systematically analyzed of Toona sinensis , Vernicia fordii Cornus wilsoniana Western Hunan using untargeted metabolomics. The results showed that types quantities primary secondary were significantly lower than those areas. Additionally, under severe conditions, 15 common compounds ( e.g. 17a-estradiol, adenine, all-trans-retinoic acid) increased three tree species. These may provide defense mechanisms plants to adapt harsh environments. KEGG metabolic pathway analysis revealed shared six enriched pathways, which play an important role biosynthesis such as phenylpropanoids unsaturated fatty acids. By revealing metabolites, this not only deepens understanding ecosystems but also provides valuable scientific evidence sustainable management.

Language: Английский

Stoichiometric Coupling of C, N, P, and K in the Litter and Soil of Rosa roxburghii Tratt Woodlands across Rocky Desertification Grades and Seasons

Forests, Journal Year: 2024, Volume and Issue: 15(8), P. 1415 - 1415

Published: Aug. 13, 2024

The purpose of this study was to explore the inherent links between elemental cycling in Rosa roxburghii Tratt litter and soil, as well their coupled relationships, within barren soil environments typical karst rocky desertification regions Guizhou Province. Ecological stoichiometric methods were used systematically analyze nutrient concentrations C, N, P, K stoichiometry roxburghii, with a focus on impacts seasonal variations regions. High C levels low N P are observed litter, whereas has lower K, replenishment priorities > C. Strong positive correlations found among C/N, C/P, N/K ratios both soil. Furthermore, vary significantly by season. Seasonal influence concentrations, notable increases September compared March. contributing balance ecosystem stability. Moreover, significant contents across distinct grades. Nonrocky desertified areas present elevated light increased concentrations. Moderately presented severely highest levels. These discernible trends profiles highlight synergistic inadequacy plant utilization strategies. findings contribute better understanding element mechanisms woodland ecosystems, offering valuable information for sustainable forest management practices.

Language: Английский