Estimation of net carbon sequestration potential with farmland application of bagasse charcoal: life cycle inventory analysis through a pilot sugarcane bagasse carbonisation plant

Soil Research ◽  
2010 ◽  
Vol 48 (7) ◽  
pp. 586 ◽  
Author(s):  
Koji Kameyama ◽  
Yoshiyuki Shinogi ◽  
Teruhito Miyamoto ◽  
Koyu Agarie
Keyword(s):  
Life Cycle ◽  
Carbon Sequestration ◽  
Co2 Emissions ◽  
Sugarcane Bagasse ◽  
Agricultural Sector ◽  
Ghg Emissions ◽  
Inventory Analysis ◽  
Microbial Decomposition ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential

Enriching soil carbon storage is regarded as a viable option for mitigating greenhouse gas (GHG) emissions in the agricultural sector. Carbon sequestration by applying biomass into the soil can be an effective sequestration pathway for agriculture. Biochar, charcoal produced from biomass pyrolysis, is highly stable against microbial decomposition, and applying this to farmland has the potential to mitigate GHG emissions. However, CO2 is emitted throughout the biochar life cycle, including pyrolysis, transportation, and farmland application. Therefore, estimating the net carbon sequestration potential by considering these CO2 emissions is important. To this end, operational data from a pilot sugarcane bagasse carbonisation plant were collected, and the net carbon sequestration potential with farmland application of bagasse charcoal was calculated using inventory data from the pilot plant. The results were as follows: (i) kerosene consumption during the carbonisation process was the greatest contributor to CO2 emissions within the life cycle of applying bagasse charcoal to farmland; (ii) the initial dryness of the feedstock was an important factor in estimating net carbon sequestration potentials; (iii) the CO2 mitigation potential with farmland application of bagasse charcoal on Miyako Island would be 1200–1800 t CO2/year.

Soil organic carbon sequestration potential of reforesting riparian areas in an agricultural watershed in the state of São Paulo, Brazil

2020 ◽  
Author(s):  
Leonardo de Aro Galera ◽  
Luiz Antonio Martinelli
Keyword(s):  
Carbon Sequestration ◽  
Organic Carbon ◽  
Ghg Emissions ◽  
Riparian Forests ◽  
Agricultural Watershed ◽  
Riparian Areas ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Forest Code ◽  
Soc Stocks

<p>Fighting climate change has never been so urgent as today. As geoscientific research advances, more realistic and appalling future climate scenarios are unraveled. Decreasing greenhouse gases (GHG) emissions is not sufficient to avoid a bad outcome; hence, mitigation actions are needed to reduce climate-related risks in the future. The depletion of the soil organic carbon (SOC) pool due to land use change and soil degradation have substantially contributed to the increase in the atmospheric CO<sub>2 </sub>concentration. Likewise, the sequestration of C by the soil is crucial to reverse this issue. These are especially important processes in the tropics where the replacement of native vegetation by agriculture still occurs at a high rate. Brazil is one of the biggest agricultural producers in the world. In 2018, agriculture and land use change represented 70% of the total Brazilian GHG emissions. Fortunately, Brazil also has opportune mitigation options. Since 1965, the Brazilian Forest Code requires landowners to conserve native vegetation by means of Riparian Preservation Areas, among other categories. Riparian forests provides several ecosystem services like water protection, biodiversity conservation and carbon sequestration. Frequently, the discussion over the carbon sequestration potential of riparian forests focus on the aboveground carbon, nevertheless, SOC stocks are more stable and protected from natural and anthropogenic hazards. We consider that the mandatory reforestation of riparian zones is a significant mitigation strategy in Brazil, owing to the potential of SOC sequestration by Brazilian biomes and the extensive area to be reforested. The objective of this study was to assess the SOC stocks of the main land uses of an agricultural watershed located in the state of São Paulo, Southeastern Brazil, and estimate the change in the SOC stocks that would occur with the reforestation of the riparian areas of this watershed. In order to achieve this goal, we compared the SOC stocks of riparian forests with the two main agricultural uses of the region, namely pasture and sugarcane. The mean SOC stock at 30 cm for riparian forests was of 44 Mg.ha<sup>-1</sup>, for pastures was of 26 Mg.ha<sup>-1</sup> and for sugarcane was of 27 Mg.ha<sup>-1</sup>. Although the riparian forests of the region are often poorly preserved, they contained considerably more SOC at 30 cm than the agricultural uses. Based on the estimates of the SOC stocks of the main land uses and the extent of the riparian zones of the sampled sites, we could foresee an accretion of 20% of organic carbon in the 30 cm soil layer of those areas. We hope that this study highlight the importance of the riparian forests and the ecosystem services they provide, and the relevance of the Brazilian Forest Code in the mitigation of climate change.</p>

scholarly journals Compared impact of compost and digestate on priming effect and hydrophobicity of soils depending on textural composition

2019 ◽  
Vol 70 (1) ◽  
pp. 47-57 ◽  
Author(s):  
Amrei Voelkner ◽  
Charlotte Diercks ◽  
Rainer Horn
Keyword(s):  
Carbon Sequestration ◽  
Organic Carbon ◽  
Organic Substance ◽  
Plant Nutrition ◽  
Priming Effect ◽  
Basal Respiration ◽  
Organic Carbon Content ◽  
Microbial Decomposition ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential

Summary Digestates and compost are used as valuable fertilizers in agriculture because of their benefits for plant nutrition and carbon sequestration potential. These amendments are also suspected to interfere negatively with the soil. To compare their relevance for priming effect and hydrophobicity of soils, two amounts of digestate or compost, respectively, were mixed with a homogenized cambic Luvisol and a Podzol. The basal respiration rate (BAS), the repellency index (RI) and organic carbon content (Corg) of pre-dried mixtures were investigated. The podsolic mixture showed quantitative reduction of Corg and increased BAS (this effect was not statistically significant) due to priming effect through microbial stimulation. As a result of enhanced organic substance (OS) protection in the cambic Luvisol mixture, constant amounts of Corg and declined BAS could be detected. The wettability was reduced in both soils: either directly by the supply of amphiphilic components or indirectly by increased incorporation of microbial exudates. This reduction was not statistically significant. Higher contents of available organic compounds in digestates and higher amounts of hydrophobic humic acids in the compost could be assumed to be decisive for generation of hydrophobicity. Also the soil texture controlled the microbial decomposition by higher incorporation of OS in finer pores and contributed to the protection against microbial decay.

A new remote sensing-based carbon sequestration potential index (CSPI): A tool to support land carbon management

2021 ◽  
Vol 494 ◽  
pp. 119343
Author(s):  
Adrián Pascual ◽  
Christian P. Giardina ◽  
Paul C. Selmants ◽  
Leah J. Laramee ◽  
Gregory P. Asner
Keyword(s):  
Remote Sensing ◽  
Carbon Sequestration ◽  
Carbon Management ◽  
Carbon Sequestration Potential ◽  
Potential Index ◽  
Sequestration Potential

Carbon sequestration potential of green roofs using mixed-sewage-sludge substrate in Chengdu World Modern Garden City

2015 ◽  
Vol 49 ◽  
pp. 247-259 ◽  
Author(s):  
Hongbing Luo ◽  
Xiaoling Liu ◽  
Bruce C. Anderson ◽  
Ke Zhang ◽  
Xiaoting Li ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Sewage Sludge ◽  
Green Roofs ◽  
Garden City ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential

A perceptive study on carbon sequestration potential of Acacia catechu in the Mukundara National Park Rajasthan-India

2021 ◽  
Vol 1 (3) ◽  
Author(s):  
Dr. Nidhi Chaturvedi, ◽  
Keyword(s):  
Climate Change ◽  
Carbon Sequestration ◽  
Power Law ◽  
Aboveground Biomass ◽  
National Park ◽  
Carbon Sequestration Potential ◽  
Acacia Species ◽  
Significant Function ◽  
Sequestration Potential ◽  
Acacia Catechu

The carbon sequestration potential of an unmanaged and previously unstudied Acacia catechu in the Mukundara National Park Rajasthan, by estimating the total aboveground biomass contained in the forest. It turned into observed that the biomass, above ground comprising of stems, branches, and foliage, holds a total of 200 tons per hectare, foremost to a valued 100 tons of carbon being deposited per hectare aboveground. Acacia species consequently has the potential to play a significant function within the mitigation of climate change. The relation among the biomass, M, of each component (stems, branches, and foliage) and the diameter d, of the plant become also studied, by means of fitting allometric equations of the form M = αdβ. It was observed that all components fit this power law relation very well (R2 > 0.7), chiefly the stems (R2 > 0.8) and branches (R2 > 0.9) for which the relation is found to be almost linear.

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