Variation in carbon stock and soil properties in different Quercus leucotrichophora forests of Garhwal Himalaya

Rawat, Shweta; Khanduri, Vinod Prasad; Singh, Bhupendra; Riyal, Manoj Kumar; Thakur, Tarun Kumar; Kumar, Munesh; Cabral-Pinto, Marina M.S.

doi:10.1016/j.catena.2022.106210

Cited by 21 publications

(16 citation statements)

References 15 publications

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“…Nitrogen mineralization potential of soil is defined as the amount of soil organic N that can be mineralized. It is a fundamental mechanism modulating the soil fertility which needs to be understood in order to meet the N demand of the plants (Kumar et al, 2021; Rawat et al, 2022). In addition to ecosystem productivity, N mineralization also controls N transformation and nitrogen cycle (Arslan et al, 2010) and can be used as an index of availability and nitrogen loss (Karki et al, 2021a).…”

Section: Introductionmentioning

confidence: 99%

Dynamics of fine roots and soil nitrogen in Mangifera indica‐based agroforestry systems in the Central Himalayan region, India

Karki

Bargali

2022

Land Degrad Dev

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This study estimated seasonal variations among several parameters of the fine roots and N dynamics in Mangifera indica‐based agroforestry systems; we examined homegarden (HG), agri‐horticulture (AH) and agri‐horti‐silviculture (AHS) systems in the Bhabhar area of the Indian Central Himalayan region. Fine roots biomass (FRB) and fine roots production (FRP) of M. indica were highest in the AH system and lowest in the HG system while fine roots turnover (FRT) showed a reverse trend. FRB, FRP and FRT rates decreased with soil depth and distance from the tree base, with larger variations in the AH system. The biomass: necromass ratio varied between 1.91 and 2.42 for HG, between 2.27 and 3.29 for AH and between 2.09 and 2.46 for AHS systems. Among all the selected agroforestry systems, concentrations of mineral N (NH4‐N and NO3‐N) were higher in the AH system and lower in the AHS system while net N mineralization rates were higher in the AHS system. In HGs, FRB it was significantly correlated with ammonification, nitrification and N mineralization while in the AH system it was positively correlated with nitrification and N mineralization. In the AHS system, it was positively correlated with ammonification only. Thus, it can be concluded that in agroforestry systems FRB was enhanced by rapid N mineralization. The variability in FRB and N mineralization between selected agroforestry systems were possibly due to the differences in soil characteristics and management practices. For enrichment of soil nutrients, the contribution of fine roots could be of more importance through the process of decomposition under the prevailing agroforestry systems.

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Section: Introductionmentioning

confidence: 99%

Dynamics of fine roots and soil nitrogen in Mangifera indica‐based agroforestry systems in the Central Himalayan region, India

Karki

Bargali

2022

Land Degrad Dev

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“…The bulk density of soil is comparatively very high in mined land and degraded lands, which could be attributed to lack of organic matter and presence of high amount of rocks and pebbles, moreover soil compaction was occurred due to use of heavy machinery during excavation of coal. The bulk density enhanced with depth of the soil, the higher bulk density in surface layer and also in agricultural forest lands could be resulted due to higher organic matter, greater biological activity, and easy root penetration (Vega et al, 2005; Mukhopdhaya et al, 2016; Kumar, Thangaraju, et al, 2021; Thakur et al, 2021; Rawat et al, 2022). The soil organic C (SOC) was significantly lower in mined and degraded wastelands compared to forest and agricultural lands, this could be presumably to greater litter mass deposited by vegetation in later than former types.…”

Section: Discussionmentioning

confidence: 99%

“…The bulk density enhanced with depth of the soil, the higher bulk density in surface layer and also in agricultural forest lands could be resulted due to higher organic matter, greater biological activity, and easy root penetration (Vega et al, 2005;Mukhopdhaya et al, 2016;Kumar, Thangaraju, et al, 2021;Rawat et al, 2022). The soil organic C (SOC) was significantly lower in mined and degraded wastelands compared to forest and agricultural lands, .…”

Section: Soil Qualitymentioning

confidence: 99%

“…Furthermore, the AHP tool is a flexible means to revise the hierarchical structure systematically, compare and determine the priorities, suggest several alternatives and select the optimum method. AHP techniques along with GIS analytical tools have been applied in studies on soil erosion, landslide susceptibility and vegetation degradation mapping (Hong et al, 2015; El Jazouli et al, 2019; Kumar, Bijalwan et al, 2021; Mzuri et al, 2021; Rawat et al, 2022). GIS‐based AHP is a useful method as all the factors involved do not influence land degradation equally.…”

Section: Introductionmentioning

confidence: 99%

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Impact of coal mining on land use dynamics and soil quality: Assessment of land degradation vulnerability through conjunctive use of analytical hierarchy process and geospatial techniques

et al. 2022

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Coal is the major source of energy in India, where 66% of the thermal power is generated from different grades of coal. The surging energy demand for domestic and industrial sectors has accelerated coal production through intensive coal mining from existing mines and there is exploration for potential areas across the Country. More than 80% of the coal excavated from open cast mining, which is a damaging form of mining that is often associated with undesirable land use changes, soil degradation, and deforestation and is responsible for other environmental degradation. The present study has been conducted in Manendragarh coal mining area located in northern Chhattisgarh, Central India using the analytical hierarchy process (AHP) and geospatial tools. LANDSAT-TM and OLI satellite data from 1990 and 2020 were digitally analyzed applying a maximum likelihood supervised classification technique in ERDAS IMAGINE and Arc-GIS platforms. Spatial analysis of satellite data revealed that the area under forest, agriculture-fallow, and waterbodies fell by 14.5%, 12.9%, and 2.52%, respectively, due mainly to conversion into degraded land, while the mining area and built-up areas were proportionally enhanced by 3.2% and 0.59% between 1990 and 2020. The intense mining resulted in deterioration of soil health, where the organic C, pH, and soil depth were considerably decreased in mined sites and degraded lands, compared to agricultural and forest areas. The major determinant biophysical, topographic, and soil factors were integrated in a GIS platform to derive a land degradation vulnerability index (LDVI), which identified five vulnerability classes. The salient findings of study provides the critical inputs for the policy makers/environmentalists in prioritization and decision-making for implementing remedial measures for the eco-restoration of mining degraded landscapes and also the improvement of ecology and environment along with sustainable coal mining.

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“…For agriculture sustainability and soil health an optimum amount of SOC is essential. And, as far as climate change is concern soil is an important sink for carbon (C) which has an impact on global warming (Rawat et al, 2022). So, the climate change especially with temperature and erratic rainfall will greatly affect soil salinization problem in the near future.…”

Section: Introductionmentioning

confidence: 99%

A review on impact of salt stress in soil health and its suitable control measure

Sharma

Devi

Meetei

2022

ECJ

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Soil salinity is associated with the accumulation of soluble salts in higher concentration deteriorating soil health associated with unfavourable environment for plant growth. It is mostly confined to those regions where there is high temperature and low precipitation, mostly in arid and semi-arid regions. Major factors responsible for soil salinity can be categorised into primary and secondary factor affecting at the spatial and temporal scale. Higher concentration of soluble salts in soil increase the osmotic potential disrupting the movement of water from root to leaf. So, soil salinity is primarily associated with the water stress condition in plants which is a direct impact to plants. Indirectly it interferes with the nutrients absorption which is one of the most important factors for proper plant growth. Plants poses different mechanisms to avoid salt stress condition in soil but maximum of it are an active processes were additional energy must have to spend for it that can impact proper growth and production. The ions primarily responsible for both the soil and plant stress under soil salinity are Na+ and Cl- which concentration increases with certain primary and secondary soil salinization factors. So, primary aim to control the impact of soil salinity is to reduce the activity/concentration of both Na+ and Cl- from the soil. So, use of the essential nutrients (K+ and SO4-2) that has an antagonistic relationship with the salts is a new approach. Due to similar charge and physico chemical properties of K+ and SO4-2 with toxic ions Na+ and Cl- respectively, there lies an antagonistic relationship. Furthermore, SO4-2 of its less toxicity to plants and improve soil pH condition especially in arid and semi-arid region, the combination of K+ and SO4-2 salt is a good combination to ameliorate the Na+ and Cl- toxicity under saline soil.

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Variation in carbon stock and soil properties in different Quercus leucotrichophora forests of Garhwal Himalaya

Cited by 21 publications

References 15 publications

Dynamics of fine roots and soil nitrogen in Mangifera indica‐based agroforestry systems in the Central Himalayan region, India

Dynamics of fine roots and soil nitrogen in Mangifera indica‐based agroforestry systems in the Central Himalayan region, India

Impact of coal mining on land use dynamics and soil quality: Assessment of land degradation vulnerability through conjunctive use of analytical hierarchy process and geospatial techniques

A review on impact of salt stress in soil health and its suitable control measure

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