scholarly journals Stand Structure, Biomass and Carbon Storage in Gmelina arborea Plantation at Agricultural Landscape in Foothills of Eastern Himalayas

Land ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 387
Author(s):  
Mendup Tamang ◽  
Roman Chettri ◽  
Vineeta Vineeta ◽  
Gopal Shukla ◽  
Jahangeer A. Bhat ◽  
...  
Keyword(s):  
Carbon Sequestration ◽  
Agricultural Landscapes ◽  
Total Carbon ◽  
Individual Species ◽  
Litter Production ◽  
Gmelina Arborea ◽  
Important Species ◽  
Carbon Sequestration Potential ◽  
Ecosystem Carbon ◽  
Sequestration Potential

In the modern era, Gmelina arborea plantations are a hotspot of future research because of their high carbon sequestration potential. The present work was conducted during 2018 to 2020 on a young unmanaged Gmelina farm to understand the ecosystem’s carbon and its dynamics. The study area was categorized into three age classes: ≤ 5, 5–10, and 10–15 years. In a plantation, Gmelina trees (10%) were randomly selected while other trees (90%) were also taken into the consideration for ecosystem carbon. A stratified random nested quadrate sampling method was adopted for analyzing other vegetation forms under study. Overall, 51 individual species in the studied Gmelina farm were found which includes 23 tree species, 7 shrub species, 16 herbs, 2 climbers, and 3 species of ferns. The estimated quantitative vegetation parameters and diversity indices indicate that the plant assemblages were heterogeneous with native diverse species evenly distributed with fairly higher densities, frequencies, and abundance. Herbs were the most important species followed by shrubs and trees. Consequently, with the increasing age of plantation, the richness of plant species increased. Soil properties were significantly influenced by the age of the plantation but exhibited no discreet trend. Total biomass density and total carbon density increased with increasing plantation age while no drastic variation was found in available soil organic carbon (SOC) because of insignificant variability in litter production. Total carbon, available SOC (up to 60 cm depth) and ecosystem carbon in the three age class plantations fell in the ranges of 54.51–59.91, 48.18–55.73, and 104.81–110.77 Mg ha−1, respectively. The carbon sequestration potential of Gmelina arborea is higher compared to other reported species and highly supportive of converting unutilized agricultural landscapes to reduce the atmospheric carbon dioxide in future.

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

1970 ◽  
Vol 18 (2) ◽  
pp. 3-9 ◽  
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

Investigation of the carbon sequestration potential of soils and woodlands at university farms

2020 ◽  
Author(s):  
Jiaqian Wang ◽  
David Werner ◽  
David Manning
Keyword(s):  
Carbon Sequestration ◽  
Carbon Dioxide Emissions ◽  
Soil Analysis ◽  
Soil Depth ◽  
Total Carbon ◽  
Leaf Biomass ◽  
Soil Layers ◽  
Carbon Sequestration Potential ◽  
Crop Fields ◽  
Sequestration Potential

<p>Reducing carbon footprint has increasingly become an important topic regarding the management of industries and universities from different fields. Newcastle University promised to achieve the goal of net-zero carbon dioxide emissions by 2040, and the first process from this ambitious target is to produce a 43% reduction by July 2020, against a 2005/06 baseline. According to the report from Carbon Management Plan 2019 of Newcastle University, there are still 1,720 tons of carbon that should be reduced or offset during this year.</p><p>Two farms were investigated in this project: Nafferton Farm (NF) and Cockle Park Farm (CP) . Soil sampling was conducted within each field at three depth increment (0-30 cm, 30-60 cm and 30-90 cm) separately. Except for soil analysis, this study also chooses some plots in the woodlands around two farms to estimate the carbon storage by various vegetation species, and these two sections will offer comprehensive information about the quality and quantity of carbon in two farms.</p><p>On average, the percentage of total carbon (TC) from all soil profiles was higher under woodland than crop fields in CP. Because the hectare of crop fields is greater than woodland, the sum of total carbon in individual soil layers from the areas is comparatively larger in crop lands, where C stock is 14,122 tons, 6,017 tons, 5,437 tons for the 0-30 cm layers, 30-60 cm layers and 60-90 cm layers, respectively. Meanwhile, the data is 1, 905 tons, 822 tons, and 648 tons for three soil depth layers in the woodland of CP. In Nafferton Farm, the value of TC from the corresponding soil layers is 17,841 tons, 6,844 tons, 6,177 tons separately.</p><p>The results attained so far represent that TC and soil organic carbon (SOC)  in each farm are all statistically significantly different (p< 0.001) with respect to soil depth, but differences were not significant with respect to crop and tree species grown in a single area. Moreover, TC in surface soil of NF is statistically higher (p< 0.01) than that in CP. In Cockle Park Farm, C contents from woodland were considerably higher than those in crop fields (p< 0.001) and the difference of TC and SOC at individual depth layer cannot be ignored. Gross carbon sequestration of plants in woodland is 150.64 tons’ annually, which was calculated by i-Tree Ecosystem Analysis. Simultaneously, the total carbon of trees, including leaf biomass and tree trunks, is in a range of 3,198- 4,096 tons in the woodland of CP. Consequently, the current quality of carbon in topsoil from the whole fields of two farms and the woodland of CP is 35,610 tons which is over four times as high as the estimated carbon emission produced by University in 2019/20 ( 8, 181 tons).</p><p>Overall, it is recommended that the management team of university should attach importance to the operation of two farms. The expectation of mitigating 1,720 ton’s carbon in the short term can be fulfilled if the management department considers converting 58.79 ha crop fields to mixed-species woodland.</p>

scholarly journals Carbon sequestration potential of nitrogen-fixing tree stands

2015 ◽  
Vol 62 (1) ◽  
pp. 39-47 ◽  
Author(s):  
Mehraj Ahamd Sheikh ◽  
Munesh Kumar ◽  
Nagendra Prasad Todaria
Keyword(s):  
Carbon Sequestration ◽  
Synergetic Effect ◽  
C Sequestration ◽  
Total Carbon ◽  
Nitrogen Fixing ◽  
Carbon Sequestration Potential ◽  
C Storage ◽  
Sequestration Potential ◽  
Mixed Plantation ◽  
Nitrogen Fixing Trees

Abstract We compared the C storage of two nitrogen-fixing trees in mixed and monospecific plantations to investigate the C sequestration potential after 10 years of their establishment. The study was carried out in three types of plantation, Dalbergia sissoo Roxb. ex DC. pure (P1DS), Leucaena leucocephala (Lam.) de Wit pure (P2LL) and mixed plantation of D. sissoo and L. leucocephala (P3DS.LL). The results of the study indicated that, P3DS.LL sequestered 34.30 ± 0.24 t yr-1 ha-1 CO2 compared to 27.35 ± 0.19 t yr-1 ha-1 in P1DS and 19.81 ± 0.44 t yr-1 ha-1 in P2LL. Total carbon storage was also maximum in P3DS.LL (93.47 ± 0.67 t ha-1) followed by P1DS (74.54 ± 0.53 t ha-1) and P2LL (53.98 ± 1.21 t ha-1). This indicates that L. leucocephala has synergetic effect with D. sissoo to enhance the carbon sequestration potential when interplanted together. The study revealed that mixed plantation of N-fixer trees have potential to sequester more carbon than same species in monoculture. The study concluded that in reforestation or afforestation program the synergic effect of N-fixer trees can be helpful projects to offset more C emissions.

scholarly journals Evaluation of Carbon Sequestration and Global Warming Potential of Wheat in Khorasan-Razavi province

2019 ◽  
Vol 38 (3) ◽  
pp. 330
Author(s):  
Surur Khorramdel ◽  
Javad Shabahang ◽  
Raheleh Ahmadzadeh Ghavidel ◽  
Abdollah Mollafilabi
Keyword(s):  
Global Warming ◽  
Carbon Sequestration ◽  
Global Warming Potential ◽  
Soil Bulk Density ◽  
Total Carbon ◽  
Nitrogen Fertilizers ◽  
Available Phosphorus ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Conversion Coefficients

In order to determine soil characteristics and above-ground and below-ground carbon sequestration potential of wheat, a systematic random sampling method was employed to select 5 samples from 50 fields situated in Khorasan-Razavi Province, Iran during 2015. The experimental design was a completely randomized design with three replications. The ash method was used to determine the carbon sequestration conversion coefficients in spikes, stems, leaves and roots. Then, greenhouse gases (such as CO2, N2O and CH4) emission were calculated using emission coefficients. The average organic carbon, total nitrogen, available phosphorus, available potassium, soil bulk density, pH and electrical conductivity were found to be 0.98%, 0.02%, 27.07 ppm, 341.32 ppm, 1.37 g.cm-3, 7.81 and 1.42 dS.m-1, respectively. The maximum (52.0%) and minimum (31.99%) conversion coefficients were related to spikes (seeds included) and roots, respectively. In addition, the total carbon sequestration was 8.25 t.ha-1 so that the maximum (4.28 t.ha-1) and minimum (0.35 t.ha-1) values were found in stems and roots, respectively. The total global warming potential (GWP) of wheat was recorded as 2377.86 kg CO2 –equiv. per ton of seed. The first contributing factor was nitrogen fertilizers, accounting for 1331.30 kg CO2 –equiv. per ton of seed.

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

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.

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

2021 ◽  
Vol 6 (6) ◽  
pp. 201-210
Author(s):  
Ramasheshwar Mandal ◽  
Srijana Karki ◽  
Bishnu Hari Pandit
Keyword(s):  
Carbon Sequestration ◽  
Soil Carbon ◽  
Carbon Stock ◽  
Google Earth ◽  
Total Carbon ◽  
Small Scale ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential ◽  
Significant Difference ◽  
Assessment And Monitoring

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.

scholarly journals Assessment of Carbon Sequestration Potential of some Selected Urban Tree Species

2021 ◽  
Author(s):  
Ezekiel Ajayi
Keyword(s):  
Carbon Sequestration ◽  
Tree Species ◽  
Carbon Sink ◽  
Total Carbon ◽  
Acacia Auriculiformis ◽  
Gmelina Arborea ◽  
Individual Tree ◽  
Urban Tree ◽  
Sequestration Potential ◽  
Exotic Tree

Tree species carbon assessment and quantification remain the only opportunity to determine the position of forest in climate change amelioration potentials. Forest biomass constitutes the largest terrestrial carbon sink and accounts for approximately 90% of all living terrestrial biomass. The aim of this study is to assess tree species carbon sequestration potentials of selected urban tree species. The study was carried out in Adekunle Ajasin University Campus, Akungba Akoko, Ondo State, Nigeria. All trees species ≥10 cm Diameter at Breast Height (Dbh) within the area were identified and their Dbh measured as well as other variables for volume computation such as height, diameters at the base, middle and top. Also, for density assessment; stem core samples were collected. Again, the coordinate of individual tree was recorded using a Global Positioning System (GPS) receiver. A total of 124 individual trees were encountered with varying growth variables as well as carbon values. The study area contains some indigenous and exotic tree species such as Acacia auriculiformis, Terminalia mantily, Gmelina arborea and Tectona grandis etc. but Acacia auriculiformis had the highest frequency. The tree species with highest carbon sequestration was Gmelina arborea as recorded for this study. The total carbon and carbon dioxide sequestered in the study area were reported as 47.94 kg and 176.03 kg respectively.

scholarly journals Carbon Sequestration Potential of Urban Green Spaces (PMC Gardens) in Pune City, India

2021 ◽  
pp. 22-38
Author(s):  
R. Shinde Vijayalaxmi ◽  
M. Mahajan Dnyanesh
Keyword(s):  
Carbon Sequestration ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Samples ◽  
Green Spaces ◽  
Total Carbon ◽  
Urban Green ◽  
Urban Green Spaces ◽  
Carbon Sequestration Potential ◽  
Sequestration Potential

Aim: To estimate the Carbon sequestration potential of trees in Urban green spaces of Pune city. Study Design: The methods suggested by Ravindranath and Ostwald were used for measuring the above and belowground biomass and estimation of carbon pool. Random sampling technique was used to collect soil samples. As the study area were one acre and above, each and every tree was sampled for various parameters. The GPS instrument was used for measuring latitude and longitude of each and every tree. Place and Duration of Study: The gardens developed by Pune Municipal Corporation (total   66 having an area one acre and above) Pune, Three years( from January 2015 to December 2015, January 2016 to December 2016, January 2017 to December 2017) Methodology: The gardens having an area one acre and above were selected for the work. Each and every tree is sampled along with its position on ground by using GPS instrument. Sampling of tree includes measuring Height and Girth at breast height (GBH). Later, the parameters like Volume, Mass, Wood density, Above and Below ground biomass, Total biomass and Total carbon were calculated as per the standard methods given by Ravindranath and Ostwald [1] Soil samples were collected randomly from a depth of 30 cm as it is a zone of highest microbial activity. Walkley‐Black Wet Oxidation method was used to find out soil organic carbon. Results: Total amount of above and belowground carbon sequestered was estimated to be 7,00,507.83 tonnes; litter and deadwood 24,904.05, and soil organic carbon 1879.905; and the sum of all were 7,27,291.785 tonnes. The exotic species sequester 2,69,287.4 tonnes and native sequester 80,966.55 tonnes of carbon. The rates of carbon in active markets are US$ 30 (Thirty dollars) per tonne.  Conclusion: Putting a conservative value of US$ 30 per tonne of CO2 locked in these sampled gardens, this carbon sink of about 7,27,291.785 tonnes of CO2 is worth of US $ 21818753.55 or Indian Rs. 1606733011.422/-It will help in Climate mitigation and reducing the carbon footprints of Pune city.

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