Biogeochemical Cycles in Forests: 2nd Edition

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

Deadline for manuscript submissions: 25 December 2025 | Viewed by 795

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Guest Editor
Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
Interests: karst forest; functional trait; stoichiometry
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Guest Editor
Department of Natural Resources and Environmental Science, University of Nevada, Reno, NV 89557, USA
Interests: forest biogeochemistry; wetland biogeochemistry; succession and ecosystem development; effects of climatic warming and CO2 fertilization on forest soils; soil organic matter chemistry; microbial ecology; chlorine chemistry in water; ultraviolet light disinfection
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Special Issue Information

Dear Colleagues,

A forest is an ecosystem composed of a biological community (including plants, animals, and microorganisms) with trees as the main body and the abiotic environment surrounding it (light, heat, water, air, soil, etc.). With the largest carbon stores and the most economical carbon absorbers on land, we can estimate that forest ecosystems contain more than half of the carbon in terrestrial ecosystems. Under the influence of global climate change and human interference, major elements (C, N, P, etc.) and trace metal elements (Pb, Cd, etc.) undergo biogeochemical cycles and migration processes in the vegetation–water–soil system, thus realizing a variety of forest ecosystem services. In recent years, with the development of isotopes, molecular biology, the model of geochemical cycles, and geographic information technology, significant progress has been made in studies on forest biogeochemical cycles. To reflect the latest research on biogeochemical cycles in forest ecosystems, we encourage the submission of studies from all fields that focus on the nutrient circle, plant stoichiometry, microbial stoichiometry, soil stoichiometry, and the element cycle model from a field-to-region scale, contributing to this Special Issue, which aims to enrich forest biogeochemistry theories and provide a basis for forest ecosystem management.

Prof. Dr. Hao Zhang
Prof. Dr. Robert G. Qualls
Guest Editors

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Keywords

  • forest ecosystem
  • nutrient circle
  • soil microorganism
  • ecological stoichiometry
  • global change
  • carbon pool
  • element cycle model

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Published Papers (1 paper)

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Research

19 pages, 3937 KB  
Article
Responses of Soil Microbial Community and Nutrient Cycling Functional Genes in Young Cyclobalanopsis gilva Forests to Infertile Mountainous Areas
by Wei Yang, Shengyi Huang, Yafei Ding, Yukun Lin, Yonghong Xu, Jianzhong Fan, Zhichun Zhou, Zhaogui Yan and Bin Wang
Forests 2025, 16(11), 1656; https://doi.org/10.3390/f16111656 - 30 Oct 2025
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Abstract
This study explores the effects of afforestation in infertile mountainous areas on soil microbial communities and functional nutrient cycling genes in young Cyclobalanopsis gilva forests, aiming to provide a scientific basis for promoting C. gilva growth. Employing metagenomic sequencing coupled with integrative analyses [...] Read more.
This study explores the effects of afforestation in infertile mountainous areas on soil microbial communities and functional nutrient cycling genes in young Cyclobalanopsis gilva forests, aiming to provide a scientific basis for promoting C. gilva growth. Employing metagenomic sequencing coupled with integrative analyses of microbial community structure and functional genes, this study took 7-year-old C. gilva forest stands in infertile mountainous areas of Shouchang Forest Farm, Zhejiang Province as the research object, using adjacent 7-year-old C. gilva forest in woodland areas as a control, to analyze the differences in soil microbial community structure and nutrient cycling functional genes in the rhizosphere (SCG) and non-rhizosphere (SNR) of infertile mountainous areas, as well as from the rhizosphere (FCG) and non-rhizosphere (FNR) of control woodland areas, and further explore their relationships with the growth of C. gilva. The results indicated that the contents of soil organic carbon (SOC), total nitrogen (TN), total phosphorus (TP), and microbial biomass nitrogen (MBN) in SNR were significantly lower than those in FNR by 59.50%, 39.57%, 29.32%, and 53.13%, respectively. Bradyrhizobium and Trebonia were the dominant genera in both site conditions; however, the relative abundance of these genera was lower in infertile mountainous areas compared to the control. Notably, the Shannon and Simpson indices of SCG were significantly lower by 0.49 and 0.01 than those of SNR (p < 0.05), respectively. Additionally, the relative abundances of carbon fixation and nitrogen fixation of SCG were significantly higher than those of SNR. And the relative abundances of functional genes involved in carbon cycling (glyA, fdhA), nitrogen cycling (nasA, narfC, narC, and nirB), and phosphorus cycling (phoB) in infertile mountainous areas were significantly higher than those in the control. The nutrient cycling processes and the expression of functional genes in SCG are coordinately regulated by soil nutrients (SOC and TN) and microbial biomass [MBC (microbial biomass carbon) and MBN]. This work provides a mechanistic foundation for optimizing afforestation strategies and ecological restoration in nutrient-limited mountainous ecosystems, highlighting the critical role of microbial functional plasticity in overcoming edaphic constraints. Full article
(This article belongs to the Special Issue Biogeochemical Cycles in Forests: 2nd Edition)
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