Application of Google earth in carbon assessment and monitoring in agroforestry: a study from Ratanpur, Nepal

The carbon assessment and monitoring in small scale forests like agroforests are difficult tasks but it creates enormous opportunity as carbon credit. This study aims to assess carbon sequestration potential in agroforestry including soil carbon using google earth imageries. Agroforestry of Ratanpur village in Tanahun district Nepal was selected as the study site. Total agroforests of 19 farmers were selected as the experimental and no agroforests area of 4 farmers were selected as the control site. The high resolution imageries of 2020 and 2015 were acquired from Google earth pro. The digitization was done to classify the image into agriculture, agroforestry, natural trees, settlement areas and others. Total enumeration was done to measure the diameter and height of the plants (tree species) planted in the agro-forest. Moreover, total 69 soil samples were collected from 0-10, 10-20 and 20-30 cm depth. The biomass was calculated using Chave et al. equation while soil carbon was analyzed using Walkley Black method. The biomass was converted into carbon which was used to calculate mean annual carbon increment. The result showed the highest carbon stock was 17.6 kg/ stand of Paulownia tomentosa. Total carbon sequestration potential was 2057.689 kg and its monetary value was US$ 30.863. The mean soil carbon stock of agro-forest was higher 52.92 ton/ha than this of 50.3 ton/ha in agriculture site. The map showed it was 7.63 ha agroforest in map of 2020. The overall accuracy of map of 2015 was 90.91% with Kappa coefficient 0.86 but these values were 80.65% and 0.74 respectively of map of 2020. One-way ANOVA and Post hoc test showed that there was significant difference in species wise carbon stock per stand at 95% confidence level. The research will be useful to understand the carbon stock in agroforestry practices.

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Conversion of degraded agricultural landscapes to a smallholder agroforestry system and carbon sequestration in drylands

International Journal of Climate Change Strategies and Management ◽

10.1108/ijccsm-08-2015-0116 ◽

2018 ◽

Vol 10 (3) ◽

pp. 472-487 ◽

Cited By ~ 2

Author(s):

Stella Nwawulu Chiemela ◽

Florent Noulèkoun ◽

Chinedum Jachinma Chiemela ◽

Amanuel Zenebe ◽

Nigussie Abadi ◽

...

Keyword(s):

Carbon Sequestration ◽

Soil Carbon ◽

Carbon Stock ◽

Vegetation Indices ◽

Agroforestry Systems ◽

Agricultural Landscapes ◽

Total Carbon ◽

Content Type ◽

Sequestration Potential ◽

Significant Difference

Purpose This paper aims at providing the evidence about how carbon sequestration in terrestrial ecosystems could contribute to the decrease of atmospheric CO2 rates through the adoption of appropriate cropping systems such as agroforestry. Design/methodology/approach Stratified randomly selected plots were used to collect data on tree diameter at breast height (DBH). Composite soil samples were collected from three soil depths for soil carbon analysis. Above ground biomass estimation was made using an allometric equation. The spectral signature of each plot was extracted to study the statistical relationship between carbon stock and selected vegetation indices. Findings There was a significant difference in vegetation and soil carbon stocks among the different land use/land cover types (P < 0.05). The potential carbon stock was highest in the vegetation found in sparsely cultivated land (13.13 ± 1.84 tons ha−1) and in soil in bushland (19.21 ± 3.79 tons ha−1). Carbon sequestration potential of the study area significantly increased (+127174.5 tons CO2e) as a result of conversion of intensively cultivated agricultural lands to agroforestry systems. The amount of sequestered carbon was found to be dependent on species diversity, tree density and tree size. The vegetation indices had a better correlation with soil and total carbon. Originality/value The paper has addressed an important aspect in curbing greenhouse gases in integrated land systems. The paper brings a new empirical insight of carbon sequestration potentials of agroforestry systems with a focus on drylands.

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Carbon sequestration potential of Alnus nepalensis in the mid hill of Nepal: A case study from Kaski district

Banko Janakari ◽

10.3126/banko.v18i2.2167 ◽

1970 ◽

Vol 18 (2) ◽

pp. 3-9 ◽

Cited By ~ 3

Author(s):

S Ranabhat ◽

KD Awasthi ◽

R Malla

Keyword(s):

Carbon Sequestration ◽

Carbon Content ◽

Soil Carbon ◽

Total Carbon ◽

Total Biomass ◽

Carbon Sequestration Potential ◽

Alnus Nepalensis ◽

Sequestration Potential ◽

Shallow Soils ◽

Different Parts

This study was carried out to analyze the carbon content in different parts of Alnus nepalensis, and to assess the effect of aspect and altitude in the carbon storage in Alnus nepalensis as well as to quantify the total carbon sequestration (stock) in Alnus nepalensis forest in the mid-hills of Kaski District. The inventory for estimating above and below ground biomass of forest was carried out using stratified random sampling technique. The carbon content in different parts of Alnus nepalensis was quantified using combustion method in the laboratory. For determining the soil carbon content, six soil profiles from each aspect were excavated and soil samples were taken from soil profile up to 1 m depth for deep soil and up to bedrock for shallow soils at the interval of 20 cm. Mean carbon content in stem, branches, leaves and bark of Alnus nepalensis were found to be 40.52%, 33%, 9.56% and 16.4%, respectively. Total biomass carbon sequestered in northern aspect was 30.20 t/ha while for southern aspect it was 39.00 t/ha. In both the aspects higher carbon sequestration was observed at an elevation range of 1200-1300m i.e. 34.8 t/ha and 45.6 t/ha in northern and southern aspects, respectively. Soil carbon sequestration in northern and southern aspects was found to be 113.4 t/ha and 169.30 t/ ha, respectively. The total carbon sequestration potential of Alnus nepalensis forest was estimated to be 186.05 t/ha. Key words: Alnus nepalensis, altitude, aspect, carbon sequestration, mid hills doi: 10.3126/banko.v18i2.2167 Banko Janakari, Vol. 18, No. 2, 3-9

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Comparative Status of Sequestered Carbon Stock of Azadirachta indica and Conocarpus erectus at the University of Karachi Campus, Pakistan

International Journal of Environment ◽

10.3126/ije.v5i2.15009 ◽

2016 ◽

Vol 5 (2) ◽

pp. 89-97 ◽

Cited By ~ 1

Author(s):

Amber Ajani ◽

Zafar Iqbal Shams

Keyword(s):

Carbon Sequestration ◽

Carbon Content ◽

Azadirachta Indica ◽

Carbon Stock ◽

Lower Troposphere ◽

Carbon Sequestration Potential ◽

Conocarpus Erectus ◽

Sequestration Potential ◽

Significant Difference ◽

The University

Carbon sequestration by trees is one of the most cost-effective and efficient methods to remove carbon dioxide from atmosphere since trees remove and store carbon at higher rates compared to other land covers. Carbon storage by trees typically ranges from 1 to 8 MgC ha-1 yr-1.The carbon is sequestered in different parts of the trees as biomass. The measurements of biomass provide reasonably accurate estimate of the amount of carbon that was removed from lower troposphere over the years. Therefore, the present study investigates and compares the carbon stock of native Azadirachta indica and exotic Conocarpus erectus, which are extensively cultivated in the campus of the University of Karachi, Pakistan. The above-ground and below-ground biomass of 327 trees of A. indica and 253 trees of C. erectus were estimated by using non-destructive method. The average carbon content of A. indica is calculated to be 662.32 + 1144.81 Kg while that of C. erectus is 192.70 + 322.60 Kg. The independent t-test analysis showed significant difference (p < 0.001) between the means of the carbon content of both the species. The carbon contents of two different species were also correlated with bole’s diameter at breast height (DBH) and tree’s height. The analysis demonstrated greater correlation between the carbon content and the DBH of both the species compared to that with their height. The study will help to understand the carbon sequestration potential of two different types of species for planting particularly in urban area of the world.INTERNATIONAL JOURNAL OF ENVIRONMENTVolume-5, Issue-2, March-May 2016, Page: 89-97

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CARBON SEQUESTRATION POTENTIAL OF ROAD SIDE STANDING TREES IN KAMAREDDY MUNICIPALITY, TELANGANA, INDIA

PLANT ARCHIVES ◽

10.51470/plantarchives.2021.v21.no2.133 ◽

2021 ◽

Vol 21 (2) ◽

Author(s):

Anil Ragula ◽

Shyam Mukandam ◽

Suryakiran Banoth

Keyword(s):

Carbon Sequestration ◽

Carbon Stock ◽

Total Carbon ◽

Total Biomass ◽

Carbon Sequestration Potential ◽

The Road ◽

Plot Size ◽

Sequestration Potential ◽

Standing Trees

In our study of Kamareddy Municipality area, we laid out a 27 sample plots linearly along the road side. 27 sample plots covered about 2.7 ha of land that means each plot size is 0.1 ha. We enumerated 229 number of tree individuals in sampled area. In the 27 sample plots, we calculated 53.5 M3 0f tree volume, mean volume per plot is 1.98 M3 . Total biomass (AGB+BGB) is about 44.7 tones; mean biomass per plot is around 1.65 tones. Total carbon calculated 1.3 tons, mean carbon is 0.78 tones per plot. The total Carbon sequestration potential is 77.9 tones, mean carbon sequestration potential per plot is about 2.88 tones. By the calculations we assumed per hectare volume is 19.81 M3 , biomass is 16.5 tones, carbon stock is 7.88 tones and carbon sequestration potential is 28.85 tons per hectare.

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Carbon Sequestration Potential and Edaphic Properties Along the Plantation Age of Rubber in Tripura, Northeastern India

Current World Environment ◽

10.12944/cwe.11.3.10 ◽

2016 ◽

Vol 11 (3) ◽

pp. 756-766 ◽

Cited By ~ 1

Author(s):

Bal Choudhary ◽

Koushik Majumdar ◽

Badal Datta

Keyword(s):

Carbon Sequestration ◽

Carbon Stock ◽

National Level ◽

Total Carbon ◽

Rubber Plantation ◽

Annual Increment ◽

Carbon Sequestration Potential ◽

Rubber Plantations ◽

Sequestration Potential ◽

Edaphic Properties

India is voluntarily committed towards reducing carbon emission. Rubber plantation could be an important means for carbon sequestration at state and national level. Tripura holds second position as rubber grower state in India, spreading over 72273 hectare areas. Present study designed to estimate the carbon storage potential, sequestration rate and some selected edaphic properties under four different aged rubber plantations viz. HB05, HB10, HB15 and HB20, following stratified random sampling methodology. Total, 40; 100×10 m transects were laid for estimation of biomass carbon stock and transects were further subdivided in to five equal quadrates 20×10 m sized for sampling soil. The stand structural variables like mean girth size, height, basal area, tree carbon and overall carbon stock significantly varied among the different aged rubber plantations. The periodic annual increment in terms of carbon sequestration was estimated at the rate of 2.97, 3.30, 3.14 and 2.82 (Mg C ha-1 yr-1). The result indicated that total carbon stock in rubber plantation was 202.48 Mg ha-1, out of which tree carbon shared 41.85 and Soil Organic Carbon (SOC) 160.71 Mg ha-1 respectively. SOC did not show any significant variation along the plantation ages. The study suggested that the potentiality of carbon sequestration of rubber plantation in Tripura has immense scope for future carbon credit and incentives.

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