Carbon Sequestration in Agroforestry Technologies as a Strategy for Climate Change Mitigation

Mitigation Strategy ◽

Home Garden ◽

Ecological Survey ◽

Agroforestry Technology ◽

Change Mitigation ◽

Agroforestry Technologies

Worldwide agroforestry has been recognized as a potential greenhouse gases mitigation strategy under Kyoto protocol. And this is due to its potential in carbon sequestration. There are several agroforestry technologies with different rate in carbon sequestration. In that respect carbon sequestration can depend on type of technology, climate, time since land use change and previous land use. Our knowledge in this topic from the tropical countries such as Tanzania is how ever very limited. To address this challenge this study was undertaken in Kilombero District where the local community are practicing various agroforestry technologies. The objective of this study was to understand the carbon sequestration in different trees species in agroforestry technologies and also to understand which agroforestry technology provide the greatest benefit in term of carbon sequestration. Ecological survey was conducted and a total of 90 plot engaged in different agroforestry technologies were randomly selected from three villages of different altitudinal range. Pivot table was used in analysis and allometric equation was used for computing biomass and carbon. The result shows that Mangifera indica contributed highest carbon over all the tree species encountered during ecological survey with 189.88 Mg C ha−1. Home garden, Mixed intercropping, Parkland and Boundary with 19 514.19 MgCha−1, 648.44MgCha−1,144.79 MgCha−1 and 139.29 Mg C ha−1 respectively were the agroforestry technology practiced in Kilombero. From the results Home garden contributed more to carbon sequestration and this study results can be used to inform practitioners and policy makers on the most effective agroforestry technologies for carbon sequestration since agroforestry technologies are expected to play important role as climate change mitigation strategy.

Soil Carbon Modelling in Salix Biomass Plantations: Variety Determines Carbon Sequestration and Climate Impacts

Forests ◽

10.3390/f12111529 ◽

2021 ◽

Vol 12 (11) ◽

pp. 1529

Author(s):

Saurav Kalita ◽

Hanna Karlsson Potter ◽

Martin Weih ◽

Christel Baum ◽

Åke Nordberg ◽

...

Keyword(s):

Climate Change ◽

Land Use ◽

Carbon Sequestration ◽

Biomass Yield ◽

Climate Impacts ◽

Carbon Modelling ◽

Sequestration Potential ◽

Determining Factor ◽

Short-rotation coppice (SRC) Salix plantations have the potential to provide fast-growing biomass feedstock with significant soil and climate mitigation benefits. Salix varieties exhibit significant variation in their physiological traits, growth patterns and soil ecology—but the effects of these variations have rarely been studied from a systems perspective. This study analyses the influence of variety on soil organic carbon (SOC) dynamics and climate impacts from Salix cultivation for heat production for a Swedish site with specific conditions. Soil carbon modelling was combined with a life cycle assessment (LCA) approach to quantify SOC sequestration and climate impacts over a 50-year period. The analysis used data from a Swedish field trial of six Salix varieties grown under fertilized and unfertilized treatments on Vertic Cambisols during 2001–2018. The Salix systems were compared with a reference case where heat is produced from natural gas and green fallow was the land use alternative. Climate impacts were determined using time-dependent LCA methodology—on a land-use (per hectare) and delivered energy unit (per MJheat) basis. All Salix varieties and treatments increased SOC, but the magnitude depended on the variety. Fertilization led to lower carbon sequestration than the equivalent unfertilized case. There was no clear relationship between biomass yield and SOC increase. In comparison with reference cases, all Salix varieties had significant potential for climate change mitigation. From a land-use perspective, high yield was the most important determining factor, followed by SOC sequestration, therefore high-yielding fertilized varieties such as ‘Tordis’, ‘Tora’ and ‘Björn’ performed best. On an energy-delivered basis, SOC sequestration potential was the determining factor for the climate change mitigation effect, with unfertilized ‘Jorr’ and ‘Loden’ outperforming the other varieties. These results show that Salix variety has a strong influence on SOC sequestration potential, biomass yield, growth pattern, response to fertilization and, ultimately, climate impact.

Robust strategies of climate change mitigation in interacting energy, economy and land use systems

International Journal of Climate Change Strategies and Management ◽

10.1108/ijccsm-09-2015-0135 ◽

2016 ◽

Vol 8 (5) ◽

pp. 732-757 ◽

Cited By ~ 2

Author(s):

Marian Leimbach ◽

Maryse Labriet ◽

Markus Bonsch ◽

Jan Philipp Dietrich ◽

Amit Kanudia ◽

...

Keyword(s):

Climate Change ◽

Land Use ◽

Mitigation Strategy ◽

Emission Reductions ◽

Content Type ◽

Mitigation Scenarios ◽

Land Use Model ◽

Energy Economy ◽

Purpose Bioenergy is a key component of climate change mitigation strategies aiming at low stabilization. Its versatility and capacity to generate negative emissions when combined with carbon capture and storage add degrees of freedom to the timing of emission reductions. This paper aims to explore the robustness of a bioenergy-based mitigation strategy by addressing several dimensions of uncertainty on biomass potential, bioenergy use and induced land use change emissions. Design/methodology/approach Different mitigation scenarios were explored by two different energy-economy optimization models coupled to the same land use model, which provides a common basis for the second generation bioenergy dynamics in the two energy-economy models. Findings Using bioenergy is found to be a robust mitigation strategy as demonstrated by high biomass shares in primary energy demand in both models and in all mitigation scenarios. Practical implications A variety of possible storylines about future uses of biomass exist. The comparison of the technology choices preferred by the applied models helps understand how future emission reductions can be achieved under alternative storylines. Originality/value The presented comparison-based assessment goes beyond other comparison studies because both energy-economy models are coupled to the same land use model.

Carbon sequestration versus bioenergy: A case study from South India exploring the relative land-use efficiency of two options for climate change mitigation

Biomass and Bioenergy ◽

10.1016/j.biombioe.2009.10.008 ◽

2010 ◽

Vol 34 (1) ◽

pp. 116-123 ◽

Cited By ~ 11

Author(s):

J.M. Rootzén ◽

G. Berndes ◽

N.H. Ravindranath ◽

H.I. Somashekar ◽

I.K. Murthy ◽

...

Keyword(s):

Climate Change ◽

Land Use ◽

Carbon Sequestration ◽

South India ◽

Land Use Efficiency ◽

Use Efficiency ◽

Quantifying the effectiveness of climate change mitigation through forest plantations and carbon sequestration with an integrated land-use model

Carbon Balance and Management ◽

10.1186/1750-0680-3-3 ◽

2008 ◽

Vol 3 (1) ◽

Cited By ~ 27

Author(s):

Jelle G van Minnen ◽

Bart J Strengers ◽

Bas Eickhout ◽

Rob J Swart ◽

Rik Leemans

Keyword(s):

Climate Change ◽

Land Use ◽

Carbon Sequestration ◽

Forest Plantations ◽

Land Use Model ◽

Economics of Forest Carbon Sequestration as a Climate Change Mitigation Strategy

Encyclopedia of Energy, Natural Resource, and Environmental Economics ◽

10.1016/b978-0-12-375067-9.00074-7 ◽

2013 ◽

pp. 41-47

Author(s):

B.C. Murray

Keyword(s):

Climate Change ◽

Carbon Sequestration ◽

Mitigation Strategy ◽

Forest Carbon ◽

Forest Carbon Sequestration ◽

Impacts of future agricultural change on ecosystem service indicators

10.5194/esd-2019-44 ◽

2019 ◽

Author(s):

Sam S. Rabin ◽

Peter Alexander ◽

Roslyn Henry ◽

Peter Anthoni ◽

Thomas A. M. Pugh ◽

...

Keyword(s):

Climate Change ◽

Land Use ◽

Carbon Sequestration ◽

Ecosystem Service ◽

Agricultural Land ◽

Nitrogen Pollution ◽

Human Populations ◽

Drought Risk ◽

Abstract. A future of increasing atmospheric carbon dioxide concentrations, changing climate, growing human populations, and shifting socioeconomic conditions means that the global agricultural system will need to adapt in order to feed the world. These changes will affect not only agricultural land, but terrestrial ecosystems in general. Here, we use the coupled land use and vegetation model LandSyMM to quantify future land use change and resulting impacts on ecosystem service indicators including carbon sequestration, runoff, and nitrogen pollution. We additionally hold certain variables, such as climate or land use, constant to assess the relative contribution of different drivers to the projected impacts. While indicators of some ecosystem services (e.g., flood and drought risk) see trends that are mostly dominated by the direct effects of climate change, others (e.g., carbon sequestration) depend critically on land use and management. Scenarios in which climate change mitigation is more difficult (Shared Socioeconomic Pathways 3 and 5) have the strongest impacts on ecosystem service indicators, such as a loss of 13–19 % of land in biodiversity hotspots and a 28 % increase in nitrogen pollution. Evaluating a suite of ecosystem service indicators across scenarios enables the identification of tradeoffs and co-benefits associated with different climate change mitigation and adaptation strategies and socioeconomic developments.