Assessment of Forest Carbon Stock and Carbon Sequestration Rates at the ICIMOD Knowledge Park in Godavari, Nepal : ICIMOD Working Paper 2016/6

Karki, S.; Joshi, Nabin Raj; Udas, Erica; Adhikari, Manik Das; Sherpa, Sonam; Kotru, Rajan; Karky, Bhaskar Singh; Chettri, Nakul

doi:10.53055/icimod.622

Cited by 10 publications

(5 citation statements)

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“…T. dumosa (7.18 t ha -1 ) was found to have the highest biomass, followed by Q. semicarpifolia (3.71 t ha -1 ), R. arboreum (2.39 t ha -1 ), least A. spectabilis (0.0014 t ha -1 ). However, the results are not as comparable to those published by (Pandey and Bhusal 2016) from Sal forest in two different ecological areas (Hill and Terai) of Nepal, and by (Karki et al 2016) from ICIMOD Knowledge Park, Godavari, which ranged from 234.54 to 479.29 t ha -1 in 2012. Forests, which store 20-100 times more carbon per unit area than croplands, play a critical role in lowering CO2 levels in the atmosphere (Brown and Pearce 1994).…”

Section: Biomass Estimationcontrasting

confidence: 82%

Vegetation diversity, structure, composition and carbon stock of community managed forests of Mid-hills, Nepal

Joshi

Sapkota

et al. 2023

Asian J For

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Abstract. Joshi P, Joshi R, Sapkota RP, Panta M, Chand P. 2023. Vegetation diversity, structure, composition and carbon stock of community managed forests of Mid-hills Nepal. Asian J For 7: 29-36. Depending on management practices, forests can serve as both carbon sinks and sources. The goal of reducing carbon emissions and increasing the carbon sink is thought to be feasible if carbon reservoirs in current forests are protected and conserved. This study was objectively conducted to assess the vegetation diversity, structure, and carbon stock of the Mid-hills of Nepal. The study was undertaken in the Lanta Community Forest, Jajarkot District, Nepal, which has an extent of 38.65 hectares. Data for vegetation analysis and carbon stock assessment were collected using systematic random sampling using quadrats of 10×10 m with a total number of 35 quadrats. Within each quadrat, individual trees and bamboo were identified in the sites, and their height (m) and DBH (cm) were measured. Density, frequency, basal area, and Important Value Index (IVI) were calculated as structural parameters of vegetation. The Above-Ground Tree Biomass (AGTB) and Below-Ground Tree Biomass (BGTB) were calculated using an allometric equation based on tree diameter, height, and wood-specific gravity. The species diversity, species richness, and evenness were found to be 2.2, 2.35, and 0.83, respectively. A total of 14 tree species, with 723 individuals and one bamboo species were recorded. Rhododendron arboreum Sm. had the highest tree density with 211 trees/ha, while Tsuga dumosa (D.Don) Eichler had the highest IVI. Total wood volume, biomass, and total carbon stock were estimated at 15.37 m3 ha-1, 31.99 t ha-1, and 15.03 t ha-1, respectively. There was a strong negative correlation (r = -0.59) between R. arboreum and R. campanulatum D. Don and a strong positive correlation (r = +0.65) between Malus sikkimensis and Machilus species. For the preservation and sustainable management of community forests, information regarding the structure, composition, and dominance of tree species is provided by the study. The establishment of community forests is thus demonstrated in this article as a means of promoting the protection and preservation of regional biodiversity.

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Section: Biomass Estimationcontrasting

confidence: 82%

Vegetation diversity, structure, composition and carbon stock of community managed forests of Mid-hills, Nepal

Joshi

Sapkota

et al. 2023

Asian J For

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“…Even Addis Abeba's greenhouse gas inventory has reached 4.89 mt CO2 eq (FDRE, 2012). Since 2012, Ethiopia's government has been working on the Climate Resilient Green Economy (CRGE), which aims to stabilize greenhouse gas levels and achieve carbon neutrality by 2025 by implementing reduction measures in a variety of national industries, including forestry, agriculture, and manufacturing (Karki et al, 2016 Somali region, Eastern part of Ethiopia forest and shrub land resources account for a small proportion of total land area. It suffered badly from recurrent droughts and serious tree cutting practices recently (FAO, 2010).…”

Section: Background Of the Studymentioning

confidence: 99%

Carbon Stock Potential of Shilabo Shrubs Land among Soil Texture Somali Region, Eastern Ethiopia

Ayele¹,

Teshome²,

Lelamo³

2023

Preprint

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Forest, shrub, and grassland play an imperative role in climate change mitigation and balancing nature by sequestering and retaining carbon above and below ground in biomass. The study was conducted to determine the total carbon stock potential of shrub lands in Shilabo district, Somalia, Ethiopia, as well as the implications for climate change mitigation. The study was restricted to the carbon stock potential of the shrub land depending on soil texture for three major carbon pools: above ground biomass (AGB), below ground biomass (BGB), and soil organic carbon (SOC). Using generic allometric equations that are readily available, the biomass of each species of tree and shrub was determined. To gather the necessary and pertinent data for the study region at every 390 m between each sample plot and 700 m between each transect line, sample plots of 20 by 20 m were established using systematic random sampling techniques. Using breast height (BH) tape, standing trees with branches and twigs only measuring 5 cm or less in diameter at breast height (DBH) were measured on 400 m2 of sample plots. The height of the trees was also assessed using a hypsometer. Each of the five 1 x 1 m shrub land subplots, one in the middle and four at the corners of the main plot, had litter samples carefully taken from it. Litter samples from each of the five subplots of the main plot were combined to create a composite sample that weighed about 100 grams. Each of the five 1 by 1 m subplot regions, one at each of the four corners and the main plot's center, had samples of soil organic carbon and bulk density taken at a depth of 30 cm using an auger. The statistical package for social science (SPSS) software version 26 was used to estimate and assess the carbon stock of various carbon pools. The findings demonstrated that the below-ground and above-ground biomass total mean carbon stocks at the sandy loam and sandy textured soil sites were approximately 507.36 t ha and 297.24 t ha, respectively. An independent sample t-test revealed that the mean difference in carbon pool and carbon dioxide sequestration between sandy loam texture soil (site 1) and sandy texture soil (site 2) was statistically significant. Shrub lands have provided great environmental benefits and services, as well as mitigating climate change impacts. Therefore, any environmental protection agencies, both government and non-government, have to look for and protect this resource.

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“…The intensity level of forest management or human activity (disturbance) clearly affects the amount of carbon sequestration and carbon dioxide absorption in forest areas (Birdsey et al 2006). Managing forests helps to increase the amount of carbon sequestration (Janowiak et al 2017) and affects carbon changes in forests (Karki et al 2016). In addition, BP and MP forests comprised AGC stock (58.54-60.16%) higher than SOC stock (41.46-39.84%).…”

Section: Forest Carbon Stocksmentioning

confidence: 99%

Forest structures and carbon stocks of community forests with different forest management in Maha Sarakham Province, Thailand

WANNASINGHA

GOMONTEAN²,

UTTARUK³

2023

Biodiversitas

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Abstract. Wannasingha W, Gomontean B, Uttaruk Y. 2023. Forest structures and carbon stocks of community forests with different forest management in Maha Sarakham Province, Thailand. Biodiversitas 24: 799-809. Forest management comprises strategies and practices to regulate human activities and the utilization of forest products. Management and regulations have various effects on forest structure, tree diversity and carbon accumulation. This study was conducted in three community forests with different levels of rule regulations and managed duration in the northeast of Thailand. Thirty of 20×20 m plots were placed for recording all trees with diameter at breast height (dbh) ?4.5 cm and >1.3 m height. One hundred and fifty plots of soil samples at 0-25 cm and 25-50 cm depths were also collected for organic carbon analysis. Forest carbon stocks were calculated from the sum of carbon in aboveground biomass (AGB) and soil organic carbon (SOC). The results showed that tree density, basal area, Shannon diversity index and evenness index of the best practices (BP) plots were higher than the plots in which moderate (MP) and slight practices (SP) were applied. Tree heights of the BP and MP forests were higher than the SP forest. The L-shape of dbh class distribution in all community forests means they were secondary forests; tree density was highest in the small dbh class and declined in the bigger size class. The bigger dbh class tree showed higher aboveground carbon (AGC) despite the lower tree density in all community forests. Most of the BP forest plots had the highest carbon stock (93.89, 80.52 and 54.96 Mg C ha-1) and CO2 absorption (344.25, 295.23 and 201.53 Mg CO2equiv.) compared with the others. Our results demonstrate the importance of forest management in affecting forest structures, carbon sequestration and carbon dioxide absorption from the atmosphere to reduce and mitigate climate change.

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Assessment of Forest Carbon Stock and Carbon Sequestration Rates at the ICIMOD Knowledge Park in Godavari, Nepal : ICIMOD Working Paper 2016/6

Cited by 10 publications

References 0 publications

Vegetation diversity, structure, composition and carbon stock of community managed forests of Mid-hills, Nepal

Vegetation diversity, structure, composition and carbon stock of community managed forests of Mid-hills, Nepal

Carbon Stock Potential of Shilabo Shrubs Land among Soil Texture Somali Region, Eastern Ethiopia

Forest structures and carbon stocks of community forests with different forest management in Maha Sarakham Province, Thailand

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