Carbon Sequestration and Stability; Soil Erosion in Forest Ecosystems: 2nd Edition

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

Deadline for manuscript submissions: 31 July 2025 | Viewed by 1430

Special Issue Editors


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Guest Editor
College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
Interests: forest ecology; ecosystem carbon cycle
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Guest Editor
Huanjiang Observation and Research Station for Karst Ecosystems, Huanjiang, China
Interests: forest ecology; carbon cycling
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Guest Editor
Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan 750021, China
Interests: plant (community) ecology; microbial ecology; global change ecology
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Special Issue Information

Dear Colleagues,

The pool of soil organic carbon is an important source and sink of atmospheric CO2, and it is one of the most important factors in carbon cycling and functioning. The stability of soil carbon is another factor that controls soil carbon emissions and storage. Stable soil carbon can enhance soil carbon sequestration and increase its mean residence time. Given that soil carbon stability influences carbon emission and storage, and greatly contributes to soil nutrients and quality, an accurate estimation of the soil carbon stock and its stability may have important implications for predicting climate change and maintaining ecological sustainability. This Special Issue aims to determine plant, soil, and ecosystem carbon storage and soil C stability changes in forest ecosystems, and to identify key factors that best explain carbon storage and stability changes.

Studies focusing on global change (such as warming and drought, amongst others), forest management (such as forest thinning, fertilization, and nitrogen and phosphorus addition), succession, vegetation restoration, greenhouse experiments, field experiments, litter decomposition, soil microbial activity, soil animals, soil carbon, and soil erosion are welcome in this Special Issue.

Dr. Hongwei Xu
Dr. Jun Xiao
Dr. Danbo Pang
Guest Editors

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Keywords

  • forest ecosystems
  • forest management
  • global change
  • vegetation restoration
  • carbon cycling
  • carbon stability
  • soil physical property
  • soil biodiversity
  • soil erosion
  • plant diversity

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Published Papers (2 papers)

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Research

12 pages, 3370 KiB  
Article
Effects of Warming on Change Rate of Soil Organic Carbon Content in Forest Soils
by Hongtao Xu, Lulu Huang and Shaoyong Wang
Forests 2025, 16(1), 59; https://doi.org/10.3390/f16010059 - 1 Jan 2025
Viewed by 598
Abstract
Climate warming affects the carbon cycle in terrestrial environments. However, the effects of warming on the change rate of soil organic carbon (SOC) content in forest soils are unclear. Here, we extracted 276 data points from 98 published papers to examine the effects [...] Read more.
Climate warming affects the carbon cycle in terrestrial environments. However, the effects of warming on the change rate of soil organic carbon (SOC) content in forest soils are unclear. Here, we extracted 276 data points from 98 published papers to examine the effects of warming on the change rate of SOC content in the soil mineral profile (0–20 or 0–30 cm), focusing on the regulatory effects of warming magnitude and duration and the humidity index. Warming promoted an increase in SOC content from 67.47 to 69.90 g kg−1 in forest soils, with a change rate of SOC content of 0.85 g kg−1 yr−1 on a global scale. The change rate of SOC content decreased from 1.22 to 0.11 g kg−1 yr−1 at a warming magnitude of 0–2 and >2 °C, respectively, and it changed from 0.96 to −0.81 to −0.51 g kg−1 yr−1 at warming durations of 0–5, 5–10, and >10 years, respectively. The change rate of SOC content was higher at a humidity index value of 30–50 than at 0–30 and >50. Although climate warming increases the SOC content, the change rate of SOC content decreases with increased magnitude and duration of warming but increases with an increased humidity index. These findings help elucidate SOC accumulation in the context of climate change. Full article
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21 pages, 7532 KiB  
Article
Stand Density Management of Cypress Plantations Based on the Influence of Soil Hydrothermal Conditions on Fine Root Dynamics in Southwestern China
by Guirong Hou, Jinfeng Zhang, Chuan Fan, Xianwei Li, Gang Chen, Kuangji Zhao, Yunqi Zhang, Jiangkun Zheng and Yong Wang
Forests 2025, 16(1), 46; https://doi.org/10.3390/f16010046 - 30 Dec 2024
Viewed by 559
Abstract
The mechanisms by which the soil physical structure, nutrient conditions, understory vegetation diversity and forest meteorological factors influence fine root (<2 mm diameter) characteristics mediated by soil moisture content (SMC) and soil heat flux (SHF) remain uncertain under climate change. Therefore, in this [...] Read more.
The mechanisms by which the soil physical structure, nutrient conditions, understory vegetation diversity and forest meteorological factors influence fine root (<2 mm diameter) characteristics mediated by soil moisture content (SMC) and soil heat flux (SHF) remain uncertain under climate change. Therefore, in this research, continuous observations were made of the fine root growth, death and turnover of cypress plantations, as well as the SMC and SHF under the management of four thinning intensities in hilly areas in central Sichuan from 2021 to 2023. The fine root data were obtained using the microroot canals (minirhizotron) in the study, and the soil hydrothermal data were obtained using the ECH2O soil parameter sensor and the PC-2R SHF data logger. In the time series, the fine root growth, death and turnover of the cypress plantations with different thinning intensities first increased and then decreased throughout the year; the vertical center of the gravity of the fine roots of cypress was concentrated in the 30–50 cm range. This research also revealed that the variability in the SMC decreased with increasing soil depth. Additionally, the SHF was transmitted from greater soil depths to the surface in unthinned cypress plantation at a rate of 0.036 per year, which decreased the heat in the fine root region. However, SHF was transmitted from the soil surface to greater depths at rates of 0.012 per year, 0.08 per year and 0.002 per year, which increased the heat in the fine root area. The redundancy analysis (RDA) and structural equation model (SEM) results indicated that the SMC and soil heat energy distribution pattern obviously affected fine root growth, death and turnover in the cypress plantation. However, the climate conditions in the forest, the characteristics of vegetation in the understory and the physical and chemical characteristics of the soil directly or indirectly affect the characteristics of the fine roots of cypress plantations with changes in thinning intensity. This research provides a basis for understanding ecosystem structure, nutrient cycling and carbon balance and may guide artificial plantation development and management. Full article
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