scholarly journals Carbon Sequestration in Support of the “4 per 1000” Initiative Using Compost and Stable Biochar from Hazelnut Shells and Sunflower Husks

Processes ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 764
Author(s):  
Klaus Mikula ◽  
Gerhard Soja ◽  
Cristina Segura ◽  
Alex Berg ◽  
Christoph Pfeifer
Keyword(s):  
Carbon Sequestration ◽  
Management Strategies ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Carbon Sequestration Potential ◽  
Carbon Neutrality ◽  
Sequestration Potential ◽  
Corylus Avellana L ◽  
Hazelnut Shells

The achievement of carbon neutrality till 2050 will require the deployment of negative carbon emission technologies like the production and soil incorporation of biochar, produced from pyrolyzed plant-based residues. The carbon sequestration potential of biochar (BC) from hazelnut (Corylus avellana L.) shells (HNS) and sunflower (Helianthus annuus L.) husks (SFH) was evaluated when the biomass was carbonized in a fixed bed reactor, in a rotary kiln and in a screw reactor. In all tested reactors, higher temperatures (>500 °C) and longer retention times increased the C concentration and stability of the biochar, with negligible effects of the reactor type and feedstock. A national case study was developed for Austria concerning the potential use of SFH- and HNS-BC in combination with compost for reaching the “4 per mille” objective. An annual soil organic carbon increase of 2.5 Mt C would be needed, requiring amendment rates of 2.2 Mt C a−1 for all annual crop areas and 0.3 Mt C a−1 for all vineyards and orchards. If compost only were used, the annual cost would be about 200 EUR ha−1 but short-term re-mineralization would have to be considered. If the more recalcitrant biochar were used only, about 2.3 t BC ha−1 would be needed at a cost of 1400–1870 EUR ha−1. The study shows in principle the feasibility of applying compost–biochar mixtures for achieving the “4 per mille” objective but in practice, supplemental soil management strategies for sequestering C will be required.

Geochemical behavior of ultramafic waste rocks with carbon sequestration potential: a case study of the Dumont Nickel Project, Amos, Québec

2017 ◽  
Vol 24 (12) ◽  
pp. 11734-11751 ◽  
Author(s):  
El Hadji Babacar Kandji ◽  
Benoit Plante ◽  
Bruno Bussière ◽  
Georges Beaudoin ◽  
Pierre-Philippe Dupont
Keyword(s):  
Carbon Sequestration ◽  
Geochemical Behavior ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Waste Rocks

scholarly journals ANALYSIS OF URBAN FOREST CARBON SEQUESTRATION CAPACITY: A CASE STUDY OF ZENGDU, SUIZHOU

2017 ◽  
Vol XLII-2/W7 ◽  
pp. 1423-1426
Author(s):  
X. Yu ◽  
H. Wang ◽  
W. Cai ◽  
Y. Han
Keyword(s):  
Carbon Sequestration ◽  
Forest Ecosystem ◽  
Urban Forest ◽  
Management Strategies ◽  
Tree Cover ◽  
Forest Land ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Forest Carbon Sequestration ◽  
Major Factors

Carbon-fixing and oxygen-releasing is an important content of forest ecosystem serving in city. Analysis of forest ecosystem carbon sequestration capacity can provide scientific reference for urban forest management strategies. Taking Zengdu of Suizhou as an example, CITYGREEN model was applied to calculate the carbon sequestration benefits of urban forest ecosystem in this paper. And the carbon sequestration potential of urban forest ecosystem following the returning of farmland to forest land is also evaluated. The results show that forest area, percent tree cover, and the structure of forest land were the major factors reflecting regional carbon sequestration capacity.

Assessing the carbon sequestration potential of managed forests: a case study from temperate Australia

2006 ◽  
Vol 43 (6) ◽  
pp. 1149-1159 ◽  
Author(s):  
S. H. ROXBURGH ◽  
S. W. WOOD ◽  
B. G. MACKEY ◽  
G. WOLDENDORP ◽  
P. GIBBONS
Keyword(s):  
Carbon Sequestration ◽  
Managed Forests ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential

scholarly journals Soil Organic Carbon Sequestration and Carbon Pools in Rice Based Cropping Systems in Indo-Gangetic Plains: An Overview

2020 ◽  
pp. 122-136
Author(s):  
Shipra Yadav ◽  
Rahul Kumar ◽  
M. Sharath Chandra ◽  
. Abhineet ◽  
Swati Singh ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Soil Carbon ◽  
Methane Emission ◽  
Carbon Emissions ◽  
Cropping Systems ◽  
Management Strategies ◽  
System Of Rice Intensification ◽  
Mycorrhizal Symbiosis ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential

Carbon sequestration in the agricultural lands is possible through different soil management strategies and could be substantial with widespread implementation. Sequestration of historic carbon emissions is now essential as mitigation alone is not enough to stabilize our atmosphere. There are numerous management strategies for drawing carbon out of the atmosphere and holding it in the soil. Effectiveness of these strategies vary across different climates, soil types, and geographies. Still, it is a controversy about the durability of sequestration in soil and about the precise conditions that maximize drawdown of carbon emissions. Carbon sequestration in soil is the potential strategy which can reduce or mitigate the impacts of the global warming. The Asian countries are having more than 90% of rice fields, they are being blamed for their contribution in the methane emission and associated climate change. A major part of rice is grown under the continuous submergence condition that may influence the active and passive pools of soil carbon besides methane emission. In this paper we have reviewed the carbon sequestration potential of rice-based soils besides discussion on the mechanisms and strategies that promote accumulation of soil carbon while minimizing carbon emissions. The strategies viz. System of Rice Intensification, Integrated Nutrient Management, promoting mycorrhizal symbiosis in aerobic rice system besides enhancement of phytolith-occluded carbon are some of the key areas facilitating better carbon sequestration in rice ecosystem.

scholarly journals Diversity, Structure and Dynamics of a Mangrove Forest: a Case Study

2014 ◽  
Vol 6 (3) ◽  
pp. 300-307
Author(s):  
Suresh Satyanarayana HEBBALALU ◽  
Dattatray M. BHAT ◽  
Ravindranath H. NIJAVALLI ◽  
Sukumar RAMAN
Keyword(s):  
Carbon Sequestration ◽  
Mangrove Forest ◽  
Allometric Equation ◽  
Repeated Measurements ◽  
Sacred Grove ◽  
Western Coast ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Productive Systems

The intertidal vegetation along tropical and subtropical coast is defined as mangrove vegetation. India has a long coast line measuring 7516 km. The ecology of mangrove forest is relatively less studied. Mangrove systems are known to be one of the most productive systems in the world. The study aimed to estimate the carbon sequestration potential of a relatively protected sacred grove along the western coast of India, in Kagekanu, Kumta, Karnataka. One hectare permanent plot was established, with all woody stems > 1 cm dbh (diameter at breast height), which were marked and identified. Repeated measurements were made to register the growth and other parameters. Allometric equation was used to estimate the biomass, out of which 50% was considered as carbon content. A total of 1100 stems > 1 cm dbh, belonging to 4 species, were enumerated. There was an overall decline of 13.9% stems during the study period. Mean mortality rate was found to be 5.83 ± 1.85% and there was no recruitment. The biomass increased from 155.53 tons/ha to 164.28 tons/ha. There was a net gain of 4.38 tons. Avicinnia officinalis was found to contribute significantly to carbon sequestration.

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