Organic carbon stock in the forest soils of Himalayas and other areas in India

Gangopadhyay, S. K.; Bhattacharyya, T.; Mishra, T. K.; Banerjee, S. K.

doi:10.1016/b978-0-12-822931-6.00007-1

Cited by 5 publications

(4 citation statements)

References 27 publications

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“…Thus, the indicator with the lowest value was Organic Carbon (OC), while the highest corresponded to Total Nitrogen (TN). The significant reduction in Organic Carbon in the area could be attributed to practices such as excessive grazing, deforestation, intensive tillage, and the use of burns in agricultural fields (Gangopadhyay et al, 2021).…”

Section: Soil Qualitymentioning

confidence: 99%

Bioindicators for Assessing Soil Quality in the Jun Jun Micro-watershed

Meneses Quelal,

Yánez Yánez

2024

Preprint

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Evaluating soil quality across various altitudinal gradients, both with and without vegetative cover, is crucial for the proper functioning of soil and optimal crop growth, thereby contributing to the sustainability of agroecosystems. Although the altitudinal gradient significantly influences soil quality, the ability to predict this quality, expressed through an index, in soils with and without vegetative cover, is still insufficiently explored. This study aimed to assess soil quality in the Jun Jun micro-watershed, located in the Tungurahua region, Ecuador. To achieve this objective, three categories of altitudinal gradients were selected: less than 2800 meters above sea level (masl), between 2800 and 2900 masl, and greater than 2900 masl. A total of 24 soil samples were collected in the mentioned gradients, considering both areas with and without vegetative cover. The indicators used included chemical and biological parameters such as soil organic carbon (OC), earthworm density (WD), earthworm biomass (WB), organic matter (OM), pH, total nitrogen (TN), and organic carbon (OC). The results revealed that in areas with altitudinal gradients below 2800 masl, soil quality index values were higher compared to other altitudes. In vegetated areas, a decrease in index values was observed as the altitudinal gradient increased, indicating a deterioration in soil quality with altitude. These findings are significant in providing a quantitative assessment of the effects of altitudinal gradient and vegetative cover influence on soil quality.

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Section: Soil Qualitymentioning

confidence: 99%

Bioindicators for Assessing Soil Quality in the Jun Jun Micro-watershed

Meneses Quelal,

Yánez Yánez

2024

Preprint

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“…In Tripura, SOC content varies from 0.34% to 1.88%. It has been found that about 7.55 per cent of the total geographical area of the State contains 0.5 to 1.0 per cent SOC, 89.03 per cent area under 1.0 to 1.5 per cent SOC and 3.42 per cent under 1.5 to 2.5 per cent SOC (Choudhury et al 2013) compared to the all-India average of 0.029 Pg ha (Gangopadhyay et al 2021). Earlier, using the 14 agroclimatic zones (ACZs) of the Planning Commission, ACZ 2, representing the entire NER was found to store organic carbon @0.064 Pg/m ha of soils (Bhattacharyya et al 2008).…”

Section: Soil Organic Carbonmentioning

confidence: 99%

Soil Carbon Stock in Non-traditional Black Soils of North Eastern India: Tripura as Example

Gangopadhyay¹,

Bhattacharyya²

2019

agroped

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Tripura state in the north-eastern region (NER) of India, by its geographic location and richness in biodiversity, well supported by complementary climatic factors, more particularly high rainfall for luxuriant phyto-biomass (both above and below ground) in the form of forests and allied sources of vegetation, are known as non-traditional black soil area. Studies conducted on the soils of Tripura indicate that about 18.20 per cent area of the State consists of black soils. The study attempts to identify the important factors responsible for the formation of black soils even in the non-traditional black soil area of the north-eastern region in general and Tripura state in particular. These black soils are deep to very deep and are mostly dominated by smectitic clays. Such soils resembled the Vertisols mapped elsewhere in other parts of the country concerning texture, periodical opening and closing of cracks and subsurface colour but have dissimilarity for slickenside development, wedge-shaped structure and colour on the surface. The CEC of these soils indicate the dominance of low-activity clays (LAC). However, the clay CEC of these soils are more than 30 and it has been extended up to 60, indicating mixed mineralogy and dominance of smectites or hydroxy interlayered smectites in the clay fraction, which holds more nutrient and moisture and thus converts these areas as the granary of the State. Therefore, besides the dominating effect of humid climate with cooler winter months with profuse vegetation, the soil substrate quality (quality and quantity of expanding clay minerals) is of fundamental importance in the sequestration of OC in the soil. The study indicated that within the 0-30 cm soil depth, black soils of Tripura has got the capabilities to store 0.01Pg soil organic carbon stock which is about 20 per cent of the SOC stock of whole Tripura and 0.01 per cent of SOC stock of India. These soils are more fertile, holding more nutrients and moisture and are still in the weathering stage and show the presence of HIS and HIV in their mineralogical makeup. Therefore, the present information will be helpful for developing appropriate land use plans and conservation planning to ensure the green belt in northeastern India in general and Tripura state in particular to protect natural ecosystems.

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“…A few studies from Darjeeling Himalayas evaluated vegetation diversity pattern along the elevation gradient (Das and Ghosh, 2022;Vineeta et al, 2022) while, a few studies also quantified biomass and carbon stock (Banerjee and Prakasham, 2012;Gangopadhyay et al, 2021) but none of these studies examined the effect of altitude on biomass and carbon stock.…”

Section: Introductionmentioning

confidence: 99%

Variation in Tree Density, Biomass and Carbon Stock with Altitude under the Large Cardamom-based Traditional Agroforestry System of Darjeeling

..,

Sarkar,

Tamang

et al. 2023

Preprint

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It has been reported that the large cardamom-based traditional agroforestry systems in the Darjeeling Himalaya of West Bengal, India represents a sustainable land use system with a high potential to store and sequester biomass carbon. Therefore, the present study was undertaken to evaluate the changes in tree biomass stock and carbon accumulation of this indigenous system with altitude. The study area was classified into three altitude-classes as low (700–1200 m asl), mid (1200–1700 m asl) and high (> 1700 m asl). The tree biomass and carbon storage for low-, mid- and high-altitude classes was estimated at 630.17 and 296.18 Mg ha− 1, 397.05 and 186.61 Mg ha− 1 and 315.78 and 148.42 Mg ha− 1, respectively. Schima wallichi, Cryptomeria japonica and Cupressus cashmeriana were the most ecologically important tree species based on IVI (important value index) in the low-, mid-, and high-altitude classes, respectively. The IVI and total biomass of the five most ecologically important tree species in low-, mid- and high-altitude ranged from 17.34–26.04, 18.15–37.56, 27.13–42.43 and 9.05-133.75 Mg ha− 1, 1.38–37.43 Mg ha− 1 and 19.0-72.1 Mg ha− 1, respectively. Schima wallichi occurred in all the altitude-classes among the five most ecologically important tree species. In the study area, the average ecosystem carbon storage was estimated at 295.02 Mg ha− 1. The contribution of soil organic carbon to the ecosystem carbon stock increased with the increasing altitude. In contrast, the contribution of biomass carbon to the ecosystem carbon stock decreased with the increase in altitude. The ecosystem carbon stock estimated for the low-altitude class was 36.43% and 45.30% higher than the mid- and high-altitude agroforestry systems. The large cardamom-based agroforestry systems in the Darjeeling Himalayas are thus a prospective carbon sink, both in vegetation and soil due to higher tree densities and natural resource conservation-based traditional farming practices.

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Organic carbon stock in the forest soils of Himalayas and other areas in India

Cited by 5 publications

References 27 publications

Bioindicators for Assessing Soil Quality in the Jun Jun Micro-watershed

Bioindicators for Assessing Soil Quality in the Jun Jun Micro-watershed

Soil Carbon Stock in Non-traditional Black Soils of North Eastern India: Tripura as Example

Variation in Tree Density, Biomass and Carbon Stock with Altitude under the Large Cardamom-based Traditional Agroforestry System of Darjeeling

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