Tag: soil carbon sequestration

Gabriel Kehinde Olawepo, Opeyemi Saheed Kolawole, John Ojo Isah IN:  
Sustainable Soil Systems in Global South, https://doi.org/10.1007/978-981-97-5276-8_14

The roles of microbes and biological matter in enhancing soil carbon sequestration in the Global South are explored in this chapter. The chapter begins by providing an introduction to the significance of soil carbon sequestration and the specific focus on microbial communities and biological matter. Understanding the dynamics of soil carbon sequestration and the factors influencing it forms the foundation for effective strategies. The authors discuss the current challenges and opportunities faced in the Global South regarding soil carbon sequestration and highlight the urgent need for sustainable solutions. Microbes, such as bacteria and fungi, are key players in carbon cycling and storage. The authors delve into the intricate interactions between soil microbial communities and plant roots and emphasize their contribution to carbon sequestration. They explore microbial processes involved in organic matter decomposition, nutrient cycling, and the formation of stable soil organic carbon.

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Han Zheng, Yue Xu, Min Wang, Lin Qi, Zhenghua Lian, Lifang Hu, Hangwei Hu, Bin Ma, Xiaofei Lv IN: Agriculture, 14, https://doi.org/10.3390/agriculture14101850

Fertilization, an important component of agricultural management, is a significant factor influencing soil carbon sequestration. This study analyzed literature from the Web of Science from 2008 to 2024 using CiteSpace. It provides a comprehensive overview of the role of fertilization in soil carbon sequestration, providing important insights for improving soil carbon sequestration strategies.

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Andrew Macintosh, Megan C. Evans, Don Butler, Pablo Larraondo, Chamith Edirisinghe, Kristen B. Hunter , Maldwyn J. Evans, Dean Ansell, Marie Waschka, David Lindenmayer IN: The Rangeland Journal, 46, https://doi.org/10.1071/RJ24024

Rangelands have been advanced as suitable for offset projects because of low opportunity cost and a perception they are extensively degraded. The most prominent example globally is human-induced regeneration (HIR) projects under the Australian carbon credit unit (ACCU) scheme, which are purporting to regenerate permanent even-aged native forests (≥20% canopy cover from trees ≥2 metres high) across millions of hectares of largely uncleared rangelands, predominantly by reducing grazing pressure. Previous research found limited forest regeneration in the credited areas of these projects, and that most of the observed changes in tree cover were attributable to factors other than the project activities. Here we extend this research by evaluating compliance of a sample of 116 HIR projects with regulatory requirements and their performance in increasing sequestration in regeneration.

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Kaiyi Zhang, Zehao Liu, Bruce A. McCarl, Chengcheng J. Fei IN: Climate, 12(10), https://doi.org/10.3390/cli12100151

This review explores and evaluates the research findings and needs for six concepts: (1) permanence; (2) additionality; (3) leakage; (4) uncertainty; (5) transaction costs; and (6) heat-trapping ability of different gases. These concepts are crucial for the effective implementation of soil C sequestration projects since they help establish robust and integrated methodologies for measurement, verification, and issuance of carbon credits. In turn, they help ensure that environmental, social, and economic benefits are accurately assessed and credibly reported, enhancing the integrity of carbon markets and contributing to global climate mitigation efforts. This review also evaluates the existing and potential market opportunities for agricultural production with C sequestration and “climate- smart” farming practices. 

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Xiaojuan Feng, Guohua Dai, Ting Liu, Juan Jia, Erxiong Zhu, Chengzhu Liu, Yunpeng Zhao, Ya Wang, Enze Kang, Jun Xiao, Wei Li IN: Science China Earth Sciences, 2024, https://doi.org/10.1007/s11430-024-1359-9

This paper reviews recent progress in the related domestic and international research and provides an overview of the key processes and mechanisms of soil carbon sequestration. The main pathways for enhancing soil carbon sequestration (including plant inputs, mineral protection, microbial transformation, and rock weathering) are summarized. The paper also discusses and synthesizes how advanced biogeochemical methods and technologies may be employed to explore soil carbon sequestration mechanisms and potentials.

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Nazli Uludere Aragon, Yanhua Xie, Daniel Bigelow, Tyler J. Lark, Alison J. Eagle IN: Earth’s Future, 12, https://doi.org/10.1029/2023EF003866

Existing estimates of the climate mitigation potential from cropland carbon sequestration (C-sequestration) are limited because they tend to assume constant rates of soil organic carbon change over all available cropland area, use relatively coarse land delineations, and often fail to adequately consider the agronomic and socioeconomic dimensions of agricultural land use. This results in an inflated estimate of the C-sequestration potential. The authors address this gap by defining a more appropriate land base for cover cropping in the United States for C-sequestration purposes: stable croplands in annual production systems that can integrate cover cropping without irrigation.

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Lening Hu, Xuehui Liu, Yaqi Xie, Yicheng Zeng, Huiping OU, Yuefeng You, Tieguang He IN: Forntiers in Environmental Science 12, 1411122, https://doi.org/10.3389/fenvs.2024.1411122

As a soil amendment, Bamboo charcoal helps to contributes to the improvement of soil carbon sequestration, but its effect on the accumulation and transformation of different soil organic carbon in soil of karst forests is not clear. In this paper three distinct forest land succession stages were analysed in ordert to study the charcteristics of SOC mineralization, different carbon fractions of organic carbon, and soil enzyme activities.

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