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

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.

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Global forest carbon sequestration and climate policy design

Environment and Development Economics ◽

10.1017/s1355770x11000027 ◽

2011 ◽

Vol 16 (4) ◽

pp. 429-454 ◽

Cited By ~ 17

Author(s):

STEVEN K. ROSE ◽

BRENT SOHNGEN

Keyword(s):

Carbon Sequestration ◽

Policy Design ◽

Forest Carbon ◽

Carbon Policy ◽

Carbon Sequestration Potential ◽

Carbon Supply ◽

Sequestration Potential ◽

Near Term ◽

Forest Carbon Sequestration ◽

The Cost

ABSTRACTGlobal forests could play an important role in mitigating climate change. However, there are significant implementation obstacles to accessing the world's forest carbon sequestration potential. The timing of regional participation and eligibility of sequestration activities are issues. The existing forest carbon supply estimates have made optimistic assumptions about immediate, comprehensive, and global access. They have also assumed no interactions between activities and regions, and over time. We use a global forest and land use model to evaluate these assumptions with more realistic forest carbon policy pathways. We find that an afforestation only policy is fundamentally flawed, accelerated deforestation may be unavoidable, and a delayed comprehensive program could reduce, but not eliminate, near-term accelerated deforestation and eventually produce sequestration equivalent to idealized policies – but with a different sequestration mix than previously estimated by others and thereby different forests. We also find that afforestation and avoided deforestation increase the cost of one another.

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

Processes ◽

10.3390/pr8070764 ◽

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.

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Tree Diversity and Carbon Sequestration Potential of An Urban Forest Patch of Pondicherry, India

Journal of Tree Sciences ◽

10.5958/2455-7129.2018.00009.2 ◽

2018 ◽

Vol 37 (1) ◽

pp. 58

Author(s):

Swapna S Khadanga ◽

Shanmuganathan Jayakumar

Keyword(s):

Carbon Sequestration ◽

Urban Forest ◽

Tree Diversity ◽

Forest Patch ◽

Carbon Sequestration Potential ◽

Sequestration Potential

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

International Research Journal of Pure and Applied Chemistry ◽

10.9734/irjpac/2020/v21i2430341 ◽

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.

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