scholarly journals Incorporating changes in albedo in estimating the climate mitigation benefits of land use change projects

2008 ◽  
Vol 5 (2) ◽  
pp. 1511-1543 ◽  
Author(s):  
D. N. Bird ◽  
M. Kunda ◽  
A. Mayer ◽  
B. Schlamadinger ◽  
L. Canella ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Carbon Stock ◽  
Climate Change Mitigation ◽  
Surface Albedo ◽  
Climate Forcing ◽  
Canopy Closure ◽  
Climatic Forcing ◽  
Mitigation Option ◽  
Sequestration Rate ◽  
Change Mitigation

Abstract. Some climate scientists are questioning whether the practice of converting of non-forest lands to forest land (afforestation or reforestation) is an effective climate change mitigation option. The discussion focuses particularly on areas where the new forest is primarily coniferous and there is significant amount of snow since the increased climate forcing due to the change in albedo may counteract the decreased climate forcing due to carbon dioxide removal. In this paper, we develop a stand-based model that combines changes in surface albedo, solar radiation, latitude, cloud cover and carbon sequestration. As well, we develop a procedure to convert carbon stock changes to equivalent climatic forcing or climatic forcing to equivalent carbon stock changes. Using the model, we investigate the sensitivity of combined affects of changes in surface albedo and carbon stock changes to model parameters. The model is sensitive to amount of cloud, atmospheric absorption, timing of canopy closure, carbon sequestration rate among other factors. The sensitivity of the model is investigated at one Canadian site, and then the model is tested at numerous sites across Canada. In general, we find that the change in albedo reduces the carbon sequestration benefits by approximately 30% over 100 years, but this is not drastic enough to suggest that one should not use afforestation or reforestation as a climate change mitigation option. This occurs because the forests grow in places where there is significant amount of cloud in winter. As well, variations in sequestration rate seem to be counterbalanced by the amount and timing of canopy closure. We close by speculating that the effects of albedo may also be significant in locations at lower latitudes, where there are less clouds, and where there are extended dry seasons. These conditions make grasses light coloured and when irrigated crops, dark forests or other vegetation such as biofuels replace the grasses, the change in carbon stocks may not compensate for the darkening of the surface.

scholarly journals Biomass, Carbon Stock and Sequestration Potential of Oxytenanthera abyssinica forests in Lower Beles River Basin, Northwestern Ethiopia

2021 ◽  
Author(s):  
Shiferaw Abebe ◽  
Amare Sewnet Minale ◽  
Demel Teketay ◽  
Durai Jayaraman
Keyword(s):  
Climate Change ◽  
Carbon Sequestration ◽  
River Basin ◽  
Carbon Stock ◽  
Climate Change Mitigation ◽  
Biomass Carbon ◽  
Oxytenanthera Abyssinica ◽  
The Mean ◽  
And Storage ◽  
Change Mitigation

Abstract Background: Ethiopia is endowed with abundant bamboo resources. However, little is known about biomass, carbon sequestration and storage potential of bamboos. Therefore, this study was conducted to estimate the carbon sequestration and storage potential of Oxytenanthera abyssinica forests in Lower Beles River Basin, Northwestern Ethiopia. To this end, A total of 54 circular plots of 100 m2, with plots having a radius of 5.64, were established to conduct the inventory in Assitsa and Eddida bamboo forests, the typical bamboo sites in Lower Beles River Basin. Biomass accumulation of bamboo was estimated using an allometric equation based on diameter at breast height (DBH) and age. Soil samples were taken from two different soil depths (0 – 15 and 15 – 30 cm) to determine soil organic carbon.Results: Results indicate that a total of 1,620 bamboo culms were measured in the bamboo forests. The mean biomass of the bamboo forests in the study area accounted for about 140.11 ± 2.55 Mg ha-1. The mean biomass carbon and soil organic carbon stock of the bamboo forests were 65. 85 ± 1.19 and 69.70 ± 1.83 Mg C ha-1, respectively. Therefore, the mean carbon stock of the O. abyssinica bamboo forests was 135.63 ± 2.33 Mg C ha-1 with 497.8 ± 8.55 CO2 equivalents. Conclusion: Generally, the O. abyssinica bamboo forests of the study area have significant role in climate change mitigation. Therefore, sustainable management of these crucial vegetation resources will enhance their role in carbon sequestration and thereby, climate change mitigation.

Evaluating the Role of Community-Managed Forest in Carbon Sequestration and Climate Change Mitigation of Tripura, India

2021 ◽  
Vol 232 (5) ◽  
Author(s):  
Dipankar Deb ◽  
Mary Jamatia ◽  
Jaba Debbarma ◽  
Jitendra Ahirwal ◽  
Sourabh Deb ◽  
...  
Keyword(s):  
Climate Change ◽  
Carbon Sequestration ◽  
Climate Change Mitigation ◽  
Managed Forest ◽  
Change Mitigation

Carbon stock of Banja forest in Banja district, Amhara region, Ethiopia: An implication for climate change mitigation

2017 ◽  
Vol 36 (6) ◽  
pp. 604-622 ◽  
Author(s):  
Fentahun Abere ◽  
Yehualashet Belete ◽  
Alemayehu Kefalew ◽  
Teshome Soromessa
Keyword(s):  
Climate Change ◽  
Carbon Stock ◽  
Climate Change Mitigation ◽  
Amhara Region ◽  
Change Mitigation

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

Forests ◽  
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 ◽  
Climate Change Mitigation ◽  
Biomass Yield ◽  
Climate Impacts ◽  
Carbon Modelling ◽  
Sequestration Potential ◽  
Determining Factor ◽  
Change Mitigation

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.

scholarly journals PERAN TEGAKAN SENGON DI HUTAN TANAMAN INDUSTRI DALAM MITIGASI PERUBAHAN IKLIM GLOBAL (The Role of Sengon’s Stand at Forest Plantation in Global Climate Change Mitigation)

HUTAN TROPIKA ◽  
2020 ◽  
Vol 14 (2) ◽  
pp. 71-79
Author(s):  
Admin JHT
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Carbon Stock ◽  
Climate Change Mitigation ◽  
Global Climate ◽  
Co2 Uptake ◽  
Biomass Carbon ◽  
Forest Plantation ◽  
Carbon Dioxide Uptake ◽  
Change Mitigation

ABSTRACTThis research aims to estimate the biomass, carbon storage, carbon dioxide uptake andoxygen produced by sengon (Paraserianthes falcataria (L.) Nielsen) stand aged 9, 11and 13 years in IUPHHK-HTI PT Parwata Rimba, Central Kalimantan. Estimated ofbiomass, carbon stock, CO2 uptake and Oxygen produced using allometric equations.The results showed that the storage of sengon standing biomass aged 9,11 and 13 yearsranged from 110.71 to 200.94 tons/ha, carbon stock ranged from 52.03 to 94.44 tons C/ha, CO2 uptake ranged from 190.79 to 259.13 tons CO2/ha and Oxygen produced around138.75 to 251.84 tons O2/ha. The total of biomass, carbon stock, CO2 uptake and Oxygenproduced by sengon stands at forest plantations are large enough to have an importantrole in global climate change mitigation in the forestry sector.Keywords: biomassa, climate change, forest plantation, karbon, sengon

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