scholarly journals A Case Study of Carbon Sequestration Potential of Land Use Policies Favoring Re-growth and Long-term Protection of Temperate Forests

2010 ◽  
Vol 3 (1) ◽  
Author(s):  
Chad James McGuire
Keyword(s):  
Land Use ◽  
Carbon Sequestration ◽  
Temperate Forests ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Land Use Policies

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 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.

scholarly journals Carbon Sequestration Potential of Forest Invasive Species: A Case Study with Acacia dealbata Link

Resources ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 51
Author(s):  
Leonel Nunes ◽  
Mauro Raposo ◽  
Catarina Meireles ◽  
Carlos Gomes ◽  
Nuno Ribeiro
Keyword(s):  
Economic Implications ◽  
Acacia Dealbata ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Production Forests ◽  
Negative Impacts ◽  
Mitigate Climate Change ◽  
Control And Eradication

Biological invasions are of complex solution, consuming resources for their control and eradication. However, in many of the documented processes that are available, this is an attempt with no solution in sight. The possibility of increasing the pressure over these species while creating value chains has been presented as a method for ensuring the sustainability of their control and eradication processes. In the case of invasive forest species in Portugal, such as Acacia dealbata Link, this control is becoming increasingly important. In addition to the negative impacts on biodiversity, the proliferation of this species has economic implications due to its competition with forest production species such as Pinus pinaster Aiton and Eucalyptus globulus Labill. Another critical aspect to be considered is the increase of the risk of rural fires, which is enhanced by the accumulation of low-value biomass around production forests. In this work, the possibility of using this species as a vehicle for the capture and sequestration of carbon in the medium and long-term was evaluated from a perspective of providing ecosystem services as a measure to mitigate climate change. However, due to its highly heliophilous character, it was found that the growth capacity of this species is rapidly conditioned by the position of each tree within a stand, not being able to maintain that capacity in the medium and long term.

scholarly journals Soil Carbon Sequestration Potential and Linkages with General Flooding and Erosion Issues, Gisborne/East-Cape Region, North Island, New Zealand

2021 ◽  
Author(s):  
◽  
Bridget Ellen O'Leary
Keyword(s):  
Land Use ◽  
New Zealand ◽  
Carbon Sequestration ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Cycle ◽  
Soil Carbon ◽  
Land Management ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential

<p>The global carbon cycle has been significantly modified by increased human demand and consumption of natural resources. Billions of tonnes of carbon moves between the Earth’s natural spheres in any given year, with anthropogenic activities adding approximately 7.1 gigatonnes (Gt) of carbon (C) to this flux. On a global basis, the sum of C in living terrestrial biomass and soils is approximately three times greater than the carbon dioxide (CO2) in the atmosphere; with the current soil organic carbon (OC) pool estimated at about 1500 Gt (Falkowski et al. 2000). With total global emissions of CO2 from soils being acknowledged as one of the largest fluxes in the carbon cycle, ideas and research into mitigating this flux are now being recognised as extremely important in terms of climate change and the reduction of green house gases (GHG) in the future. Additional co-benefits of increasing carbon storage within the soil are improvements in a soil’s structural and hydrological capacity. For example, increasing organic carbon generally increases infiltration and storage capacity of soil, with potential to reduce flooding and erosion. There are several management options that can be applied in order to increase the amount of carbon in the soil. Adjustments to land management techniques (e.g. ploughing) and also changes to cropping and vegetation type can increase organic carbon content within the subsurface (Schlesinger & Andrews, 2000). If we are able to identify specific areas of the landscape that are prone to carbon losses or have potential to be modified to store additional carbon, we can take targeted action to mitigate and apply better management strategies to these areas. This research aims to investigate issues surrounding soil carbon and the more general sustainability issues of the Gisborne/East-Cape region, North Island, New Zealand. Maori-owned land has a large presence in the region. Much of this land is described as being “marginal” in many aspects. The region also has major issues in terms of flooding and erosion. Explored within this research are issues surrounding sustainability, (including flooding, erosion, and Maori land) with particular emphasis on carbon sequestration potential and the multiple co-benefits associated with increasing the amount of carbon in the soil. This research consists of a desktop study and field investigations focusing on differences in soil type and vegetation cover/land use and what effects these differences have on soil OC content within the subsurface. Soil chemical and physical analysis was undertaken with 220 soil samples collected from two case-study properties. Particle size analysis was carried out using a laser particle sizer (LPS) to determine textural characteristics and hydraulic capacity. Soil organic carbon (OC) content was determined following the colorimetric method, wet oxidation (Blakemore et al. 1987), with results identifying large difference in soil OC quantification between sampled sites. National scale data is explored and then compared with the results from this field investigation. The direct and indirect benefits resulting from more carbon being locked up in soil may assist in determining incentives for better land-use and land management practices in the Gisborne/East-Cape region. Potentially leading to benefits for the land-user, the environment and overall general sustainability.</p>

Modelling of soil carbon sequestration by use of rice-straw mulching in two citrus orchards in Valencia (Spain)

2021 ◽  
Author(s):  
Simone Pesce ◽  
Enrico Balugani ◽  
Josè Miguel De Paz ◽  
Fernado Visconti ◽  
Carlotta Carlini ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Soil Carbon ◽  
Soil Water ◽  
Rice Straw ◽  
Agricultural Practices ◽  
Soil Carbon Sequestration ◽  
Carbon Sequestration Potential ◽  
Straw Mulch ◽  
Sequestration Potential

&lt;p&gt;In the context of sustainable development, agriculture holds a promising potential for CO2 sequestration and, accordingly, for the mitigation of climate change. This potential capacity can be developed through the adoption of less conventional farming techniques, such as the mulching of the topsoil with agricultural by-products where they are available, e.g., rice straw in the semiarid Valencia province (Eastern Spain). In general, the use of straw as mulching material has been found beneficial for soil quality as it reduces temperature excursions both daily and yearly, increases soil water content overall, and increases the activity of microbes. Moreover, it encourages the binding of organic matter and mineral particles into macro and micro aggregates, leading to: enhancement of the aggregate stability, restoration of stable C, and increase in the soil organic carbon (SOC) content and, thus, soil carbon sequestration. SOC dynamic models, like the widely used RothC, are useful to assess the soil carbon sequestration potential of different agricultural practices and to project their effects on the long term. However, there is a lack of studies focusing on the modelling of straw mulch effects on SOC dynamics.&lt;/p&gt;&lt;p&gt;Our work aimed at modelling the rice straw mulch degradation and its effects on the SOC dynamics in two citrus orchards, as observed during a short-term field experiment (2 years). In the orchards, the straw mulch was applied to the inter-rows once a year, and its effects on soil water content, temperature, respiration rate, and SOC contents (amidst other chemical and biological parameters) were compared with bare soil and natural grass formation&lt;/p&gt;&lt;p&gt;The RothC carbon dynamics model was modified by including the straw mulch effects on SOC dynamics as observed on the field and, additionally, by modelling the soil water dynamics with the HYDRUS1D model. The SOC pools for the RothC simulations were assessed following the fractionation of Zimmerman et al. (2007). The model parameters were calibrated with the soil respiration data.&lt;/p&gt;&lt;p&gt;The straw mulch model can be used for the estimation of the effects of the rice straw on the SOC in the short term. By changing the soil, climatic and agricultural practices inputs, the model can be applied to different fields in semiarid conditions, allowing the assessment of the soil carbon sequestration potential of different agricultural practices. However, the model still needs to be verified on long term field studies to deliver reliable long term sequestration projections.&lt;/p&gt;

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