Soil and tree biomass carbon sequestration potential of silvopastoral and woodland-pasture systems in North East Scotland

Erosion through ravines causes many problems on bank of Chambal river in Madhya Pradesh. It damages rangelands, croplands and infra-structures. Plantation of different fruit trees (Moringa oleifera, Amblica officinalis, Psidium guaijava, Ziziphuszezuba, Punica grantum, Annonasquamosa), forest / medicinal trees (Cenchr sciliaris,Azardirechtaindica, Pongamia pinnata, Albizialebbeck, Dalbergiasisso and Acacia nilotica)) and some grasses (lemon grass, pamarosa, para and napier grass) under four management modules viz. M1-diversified cropping system, M2- Agri-horticultural, M3- Horti-pastoral, M4- Silvi-medicinal and M5- Silvi-pastoral were raised during 2012 at 3x3 m spacing. Plants absorb carbon dioxide from the atmosphere by the process of photosynthesis and store the carbon (C) as biomass.The highest biomass carbon wasyielded in ModuleM3, followed by M2, M5, M4 and M1, respectively. The average biomass carbon was found highest in grasses followed by fruit and forest trees. The study shows that the carbon sequestration in soil (0-15 cm) was found highest in M4 (0.45%) followed by M5 (0.44%), M1 (0.36%), M2 (0.35%) and between depth 15-25 cm the soil sequestration was highest in M1. The percent increase in soil carbon from 2012 to 2017 was highest in M1 (0-15 cm), while in depth 15-25 cm M4 showedhighest increase in soil carbon. Available nutrient status showedtremendous changes over initial value whereas available phosphorous showed decreasing trend under all modules after six years of studies.

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Above ground biomass carbon assessment using field, satellite data and model based integrated approach to predict the carbon sequestration potential of major land use sector of Arunachal Himalaya, India

Carbon Management ◽

10.1080/17583004.2021.1899753 ◽

2021 ◽

pp. 1-14

Author(s):

Bisawjit Das ◽

Reetashree Bordoloi ◽

Sangeeta Deka ◽

Ashish Paul ◽

Pankaj Kumar Pandey ◽

...

Keyword(s):

Land Use ◽

Carbon Sequestration ◽

Satellite Data ◽

Integrated Approach ◽

Biomass Carbon ◽

Above Ground Biomass ◽

Carbon Sequestration Potential ◽

Ground Biomass ◽

Sequestration Potential ◽

Arunachal Himalaya

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Tree biomass and soil carbon stocks of a mangrove ecosystem on the Egyptian-African Red Sea coast

Fundamental and Applied Limnology / Archiv für Hydrobiologie ◽

10.1127/fal/2020/1240 ◽

2020 ◽

Vol 193 (3) ◽

pp. 239-251 ◽

Cited By ~ 2

Author(s):

Abdelwahab A. Afefe ◽

Mohamed S. Abbas ◽

Amira Sh. Soliman ◽

Abdel-Hamid A. Khedr ◽

El-Bialy E. Hatab

Keyword(s):

Carbon Sequestration ◽

Organic Carbon ◽

Carbon Content ◽

Mangrove Ecosystem ◽

Organic Carbon Content ◽

Mangrove Forests ◽

Tree Biomass ◽

Mangrove Species ◽

Carbon Sequestration Potential ◽

Sequestration Potential

Mangroves are key ecosystems in strategies addressing the mitigation of climate change through carbon storage in several countries around the world. The main objective of this study is to quantify the carbon storage (above- and below-ground) in the biomass and sediment of mangrove forests (Avicennia marina and Rhizophora mucronata), as well as to estimate the carbon sequestration potential in the Gebel Elba Protected Area along the Egyptian–African Red Sea Coast. The mean recorded soil bulk density in both mangrove species was 1.16 g cm–3, while the recorded mean soil organic carbon (SOC) content was 34.95 g C kg–1. The total mean SOC content was statistically higher in A. marina stands (39.66 g C kg–1) than in R. mucronata stands (33.15 g C kg–1 ). The total mean SOC density for A. marina and R. mucronata amounts to 40.60 kg C m–3. We recorded the carbon sequestration rate of mangrove forests in Egypt as 11.36 g C m–2 year–1 and the total carbon sequestration potential as 5.97 Gg C year–1. The average single tree biomass was notably highly variable between different mangrove species and sites, with a total average tree biomass of 164.8 and 43.7 kg tree–1 for A. marina and R. mucronata, respectively. The results show that the average total tree carbon content is 74.3 and 18.0 kg tree–1 for A. marina and R. mucronata, respectively. While the recorded tree below-ground biomass was 54.1 and 32.6 kg tree–1, and above-ground biomass was 110.7 and 11.1 kg tree–1 for A. marina and R. mucronata, respectively. The recorded average biomass per hectare of mangrove was 74997.1 and 22536.8 kg for A. marina and R. mucronata, respectively. Moreover, the average total tree carbon content per hectare was 33782.3 and 9304.7 kg for A. marina and R. mucronata, respectively. However, for Egypt mangroves (525 ha), the total organic carbon content amounts to 17.73 Gg C for biomass and 5.97 Gg C year–1 for soil, with total of 23.7 Gg C of organic carbon content storage in the mangrove ecosystem in Egypt.

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Impact of changes in climate and CO<sub>2</sub> on the carbon-sequestration potential of vegetation under limited water availability using SEIB-DGVM version 3.02

10.5194/gmd-2021-383 ◽

2021 ◽

Author(s):

Shanlin Tong ◽

Weiguang Wang ◽

Jie Chen ◽

Chong-Yu Xu ◽

Hisashi Sato ◽

...

Keyword(s):

Carbon Sequestration ◽

Carbon Stocks ◽

Ground Vegetation ◽

Biomass Carbon ◽

Dynamic Global Vegetation Model ◽

Carbon Sequestration Potential ◽

Vegetation Biomass ◽

Sequestration Potential ◽

Below Ground ◽

Vegetation Carbon

Abstract. Documenting year-to-year variations in carbon-sequestration potential in terrestrial ecosystems is crucial for the determination of carbon dioxide (CO2) emissions. However, the magnitude, pattern and inner biomass partitioning of carbon-sequestration potential, and the effect of the changes in climate and CO2 on inner carbon stocks, remain poorly quantified. Herein, we use a spatially explicit individual based-dynamic global vegetation model to investigate the influences of the changes in climate and CO2 on the enhanced carbon-sequestration potential of vegetation. The modelling included a series of factorial simulations using the CRU dataset from 1916 to 2015. The results show that CO2 predominantly leads to a persistent and widespread increase in above-ground vegetation biomass carbon-stocks (AVBC) and below-ground vegetation biomass carbon-stocks (BVBC). Climate change appears to play a secondary role in carbon-sequestration potential. Importantly, with the mitigation of water stress, the magnitude of the above- and below-ground responses in vegetation carbon-stocks gradually increases, and the ratio between AVBC and BVBC increases to capture CO2 and sunlight. Changes in the pattern of vegetation carbon storage was linked to regional limitations in water, which directly weakens and indirectly regulates the response of potential vegetation carbon-stocks to a changing environment. Our findings differ from previous modelling evaluations of vegetation that ignored inner carbon dynamics and demonstrates that the long-term trend in increased vegetation biomass carbon-stocks is driven by CO2 fertilization and temperature effects that are controlled by water limitations.

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