Unlocking the Secrets of Soil: How Carbon and Nutrient Dynamics Shape Forest Ecosystems

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Soil".

Deadline for manuscript submissions: 28 May 2026 | Viewed by 549

Special Issue Editors


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Guest Editor
Guangzhou Academy of Agricultural and Rural Sciences, Guangzhou 510405, China
Interests: soil carbon sequestration; phosphorus dynamics; ecoenzymatic stoichiometry; soil quality improvement; soil stoichiometric imbalance
Kyushu Research Center, Forestry and Forest Products Research Institute (FFPRI), Kurokami 4-11-16, Kumamoto 860-0862, Japan
Interests: ecoenzymes; ecosystem ecology; greenhouse gases; organic matter decomposition; soil nutrient dynamics

Special Issue Information

Dear Colleagues,

Forests are among the most critical terrestrial ecosystems, playing a pivotal role in regulating regional climates. Soil functions as the primary reservoir of carbon and nutrients in forest ecosystems; minor perturbations to soil biogeochemical processes can strongly alter ecosystem carbon sequestration and nutrient cycling. Therefore, elucidating the cycling processes of carbon, nitrogen, phosphorus, and other elements is critical for informing effective forest conservation strategies and ensuring long-term ecosystem sustainability. Our Special Issue focuses on studies of element cycling in forest ecosystems, including their underlying mechanisms and response patterns under global change, and nutrient-mediated regulation of forest community structure and ecosystem functions. These studies may conduct cross-scale analyses from macroscopic community patterns to microscale microbial processes. We encourage submissions addressing elemental cycling in tropical, temperate, boreal, coastal, mangrove, and wetland forest ecosystems.

Topics of interest include, but are not limited to, the following:

  1. Mechanisms underlying forest soil carbon sequestration processes and stabilization;
  2. Long-term monitoring and large-scale investigations of forest soil carbon budgets and nutrient cycling processes;
  3. Dynamics of soil nutrient availability and plant/community adaptation mechanisms in forest ecosystems under global change;
  4. Impacts of land use/land cover changes on forest nutrient balances;
  5. Alterations in soil element dynamics and their trajectories under anthropogenic interventions/management.

Dr. Senhao Wang
Dr. Taiki Mori
Guest Editors

Manuscript Submission Information

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Keywords

  • forest ecosystem functioning
  • carbon sequestration
  • nutrient cycle
  • forest management
  • forest community composition and structure
  • global change

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Published Papers (1 paper)

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Research

23 pages, 5281 KB  
Article
Simultaneous Application of Ammonium and Nitrate Nitrogen Enhances Phytoremediation Efficiency by Mediating Biomass and Bioavailability of Lead and Cadmium in Salix linearistipularis
by Jian Zhou, Dongliu Di, Yaoyao Zhang, Zhuotian Gao, Xiaoyun Niu, Dazhuang Huang and Keye Zhu
Forests 2026, 17(3), 364; https://doi.org/10.3390/f17030364 - 14 Mar 2026
Viewed by 345
Abstract
This study aims to elucidate the effects and mechanisms of ammonium (NH4+-N) and nitrate (NO3-N) nitrogen on the efficiency of Salix linearistipularis K. S. Hao in remediating heavy metal-contaminated soils. Thus, the effects of 15 fertilization treatments [...] Read more.
This study aims to elucidate the effects and mechanisms of ammonium (NH4+-N) and nitrate (NO3-N) nitrogen on the efficiency of Salix linearistipularis K. S. Hao in remediating heavy metal-contaminated soils. Thus, the effects of 15 fertilization treatments (comprising three nitrogen levels and five nitrogen form ratios) on Pb and Cd accumulation, soil properties, microbial structure, and metabolic characteristics were investigated using a pot experiment. The results indicated that Pb and Cd accumulation were the highest under the L12 treatment (60 kg N·hm−2·year−1, NH4+-N/NO3-N = 1:2), whereas nitrate-only treatments, irrespective of concentration, resulted in a decrease in accumulation. In the L12 treatment, biomass increased by 87.0%, with Pb and Cd accumulation rising by 85.71% and 80.0%, respectively, suggesting that biomass may contribute predominantly to heavy metal accumulation. Additionally, NH4+-N/NO3-N ratio had a greater effect on biomass than the nitrogen application amount. Microbial composition was altered, and the relative abundance of heavy metal-resistant microbes increased. However, the amount of nitrogen fertilizer had a stronger impact on microbial variation. Under different nitrogen application rates and NH4+-N/NO3-N ratios, the formation or disappearance of unique metabolic pathways related to amino acids and carbohydrates was observed. Furthermore, both microbial metabolism and the bioavailability of Pb and Cd were positively correlated with nitrogen levels and NH4+-N/NO3-N ratios. These findings indicate a potential association between shifts in microbial metabolism and the bioavailability of heavy metals. Therefore, the simultaneous application of ammonium and nitrate nitrogen in appropriate ratios can enhance the remediation efficiency of S. linearistipularis by boosting biomass and heavy metal bioavailability via microbial metabolism. The findings of this study not only provide novel insights into improving the phytoremediation efficiency of woody plants through fertilization strategies but also lay a theoretical foundation for the effects of nitrogen fertilization on nutrient cycling in metal-contaminated soils. Full article
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