Positive Effects of Biochar on the Degraded Forest Soil and Tree Growth in China: A Systematic Review

Zhang, Jingkang; Zhang, Shiyuan; Niu, Changhao; Jiang, Jiang; Sun, Haijun

doi:10.32604/phyton.2022.020323

Cited by 4 publications

(2 citation statements)

References 105 publications

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“…This is because the different textures of the soil determine the function of the biochar once it was incorporated into the soil. Generally speaking, sandy soils have more grit, larger porosity and higher water holding capacity [ 131 ]. Ghorbani et al [ 132 ] reported that applying 1% and 3% RHB to sandy soils increased the cation exchange by 20% and 30%, respectively.…”

Section: Rice Husk Biochar As a Soil Conditionermentioning

confidence: 99%

Review on Rice Husk Biochar as an Adsorbent for Soil and Water Remediation

Zheng

et al. 2023

Plants

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Rice husk biochar (RHB) is a low-cost and renewable resource that has been found to be highly effective for the remediation of water and soil environments. Its yield, structure, composition, and physicochemical properties can be modified by changing the parameters of the preparation process, such as the heating rate, pyrolysis temperature, and carrier gas flow rate. Additionally, its specific surface area and functional groups can be modified through physical, chemical, and biological means. Compared to biochar from other feedstocks, RHB performs poorly in solutions with coexisting metal, but can be modified for improved adsorption. In contaminated soils, RHB has been found to be effective in adsorbing heavy metals and organic matter, as well as reducing pollutant availability and enhancing crop growth by regulating soil properties and releasing beneficial elements. However, its effectiveness in complex environments remains uncertain, and further research is needed to fully understand its mechanisms and effectiveness in environmental remediation.

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Section: Rice Husk Biochar As a Soil Conditionermentioning

confidence: 99%

Review on Rice Husk Biochar as an Adsorbent for Soil and Water Remediation

Zheng

et al. 2023

Plants

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“…Under the background of soil BC improvement [ 18 ], in this paper, we focus on the effect of fertilization conditions on fertile black soil and strive to provide practical suggestions for soil improvement in black soil areas. A high proportion of BC applications has previously been considered to be impractical or economically infeasible [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Biochar on the Fluorescence Spectra of Water-Soluble Organic Matter in Black Soil Profile after Application for Six Years

Liang

Wei

et al. 2023

Plants

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At present, extracting water-soluble organic matter (WSOM) from agricultural organic waste is primarily used to evaluate soil organic matter content in farmland. However, only a few studies have focused on its vertical behavior in the soil profile. This study aims to clarify the three-dimensional fluorescence spectrum characteristics of the WSOM samples in 0–60 cm black soil profile before and after different chemical fertilizer treatments after six years of fertilization. Fluorescence spectroscopy combined with fluorescence and ultraviolet-visible (UV-Vis) spectroscopies are used to divide four different fertilization types: no fertilization (T0), nitrogen phosphorus potassium (NPK) (T1), biochar (T2), biochar + NPK (T3), and biochar + N (T4) in a typical black soil area. The vertical characteristics of WSOC are also analyzed. The results showed that after six years of nitrogen application, T2 had a significant effect on the fluorescence intensity of Zone II (decreasing by 9.6% in the 0–20 cm soil layer) and Zone V (increasing by 8.5% in the 0–20 cm soil layer). The fluorescent components identified in each treatment group include ultraviolet radiation A humic acid-like substances (C1), ultraviolet radiation C humic acid-like substances (C2), and tryptophan-like substance (C3). As compared with the land with T1, the content of C2 in the 20–60 cm soil layer with T2 was lower, while that of C2 in the surface and subsoil with T3 was higher. In addiiton, there were no significant differences in the contents of C1, C2, and C3 by comparing the soils applied with T3 and T4, respectively. The composition of soil WSOM was found to be significantly influenced by the addition of a mixture of biochar and chemical fertilizers. The addition of biochar alone exerted a positive effect on the humification process in the surface soil (0–10 cm). NPK treatment could stimulate biological activity by increasing biological index values in deeper soil layers (40–50 cm). Nitrogen is the sovereign factor that improves the synergism effect of chemical fertilizer and biochar during the humification process. According to the UV-Vis spectrum and optical index, soil WSOM originates from land and microorganisms. This study reveals the dynamics of WSOC in the 0–60 cm soil layer and the biogeochemical effect of BC fertilizer treatment on the agricultural soil ecosystem.

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Role of biochar made from low‐value woody forest residues in ecological sustainability and carbon neutrality

Ghosh,

Page‐Dumroese,

Han

et al. 2024

Soil Science Soc of Amer J

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Forest management activities that are intended to improve forest health and reduce the risk of catastrophic fire generate low‐value woody biomass, which is often piled and open‐burned for disposal. This leads to greenhouse gas emissions, long‐lasting burn scars, air pollution, and increased risk of escaped prescribed fire. Converting low‐value biomass into biochar can be a promising avenue for advancing forest sustainability and carbon neutrality. Biochar can be produced either in a centralized facility or by using place‐based techniques that mitigate greenhouse gas emissions and generate a high‐carbon product with diverse applications. This review explores the multifaceted roles of biochar produced from low‐value biomass during forest restoration activities in the context of the United Nations Sustainable Development Goals and carbon sequestration for climate change mitigation. First, the ecological benefits are evaluated, including soil restoration, nutrient cycling, and vegetation enhancement, which are pivotal for restoring post‐disturbance forest health and enhancing resilience to future disturbance. Second, we evaluate the role of biochar in carbon sequestration and carbon neutrality objectives, which also foster sustainable soil practices and sustainable forest management. In addition, we highlight biochar markets, commercialization, and carbon credit interactions as emerging mechanisms to incentivize biomass utilization for biochar. The integration of biochar made from low‐value woody residues from forest restoration can enhance restoration strategies, engage stakeholders in sustainable land management practices, and mitigate environmental problems while enhancing the resilience of forest ecosystems to future disturbances. The findings underscore the importance of leveraging low‐value woody biomass for biochar production as a strategic resource for achieving comprehensive forest restoration goals and fostering sustainable development in forested landscapes.

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Positive Effects of Biochar on the Degraded Forest Soil and Tree Growth in China: A Systematic Review

Cited by 4 publications

References 105 publications

Review on Rice Husk Biochar as an Adsorbent for Soil and Water Remediation

Review on Rice Husk Biochar as an Adsorbent for Soil and Water Remediation

Effects of Biochar on the Fluorescence Spectra of Water-Soluble Organic Matter in Black Soil Profile after Application for Six Years

Role of biochar made from low‐value woody forest residues in ecological sustainability and carbon neutrality

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