Temporal variability in fine root dynamics in relation to tree girth size in sub‐tropical sal (Shorea robusta) forests

Pandey, Rachita; Bargali, Surendra Singh; Pandey, Vimal Chandra

doi:10.1002/ldr.4550

Cited by 19 publications

(6 citation statements)

References 64 publications

(78 reference statements)

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“…In the Central Himalayan region, studies were also focused on the impact of forests on soil health and carbon but also developed methods for large‐scale quantification of soil organic carbon. Given the role of fine root biomass (FRB), productivity (FRP), and turnover (FRT) as a pathway of carbon and nutrients from plants to the soil, Pandey et al (2023) examined the rapid turnover of fine roots (≤2 mm in diameter) in a sub‐tropical sal ( Shorea robusta ) forest ecosystem in Nainital district in Uttarakhand. They found that FRB was highest for the uppermost, organo‐mineral‐rich soil depth (0–20 cm) at 1 m distance from the tree bole and decreased with increasing soil depth, increasing girth size of tree bole and distance from the tree bole while fine root runover (FRT) showed the opposite pattern.…”

Section: Review Of Papers Published In This Issuementioning

confidence: 99%

“…The studies in this special issue found that agroforestry improves soil outcomes while also providing socio‐economic benefits by supplementing income of farmers (Karki et al, 2022; Nienkerke & Patt, 2022). The articles on forests quantify various soil‐based ecosystem services (Kumar, Roy, et al, 2022; Pandey et al, 2023) and report that forest degradation reduces these services (Shukla et al, 2022; Thakrey et al, 2022). In the case of soil salinization, also, studies tested different methods to reduce salinization in different local conditions (Jha et al, 2022; Meena et al, 2022; Neha et al, 2022).…”

Section: Synthesis and Conclusionmentioning

confidence: 99%

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Land degradation and development in India: Status quo, challenges and opportunities

Singh,

Agrawala,

Dhyani

et al. 2024

Land Degrad Dev

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This article reviews and synthesizes the articles published in a virtual special issue (VSI) “Land Degradation and Development in India: Status quo, challenges, and opportunities.” A total of 31 studies (28 research papers and three reviews) are published in this VSI covering various agroclimatic zones of India. These articles provide insights on how different natural and anthropogenic disturbances affect the diversity, and functioning of forests, grasslands, agriculture, agroforestry, and physicochemical and biological composition of the soil. Twelve of these articles also investigate the effectiveness of different restoration methods to restore various degraded ecosystems through agroforestry, afforestation and reforestation, organic amendments, and agroecological interventions. The historical journey of forest restoration, behavioral pattern of local communities for conservation and restoration, and policy framework for restoration in India are discussed in three independent articles. Overall, there is convergence in learnings from these papers for structural and non‐structural land degradation, soil salinization, and agroforestry but results from papers on plantations and organic inputs into farming highlight the need for more research.

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Section: Review Of Papers Published In This Issuementioning

confidence: 99%

Section: Synthesis and Conclusionmentioning

confidence: 99%

Land degradation and development in India: Status quo, challenges and opportunities

Singh,

Agrawala,

Dhyani

et al. 2024

Land Degrad Dev

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“…Fine root production is a fundamental component of forest productivity because it contributes to 22% -40% of terrestrial net primary production (Lima et al 2010;Finér et al 2011a;Luke McCormack et al 2013;Pandey et al 2023). Fine root production and turnover is one of the important pathways of carbon and nutrient cycling in forest ecosystems (Nadelhoffer and Raich 1992;Matamala et al 2003;Jourdan et al 2008;Germon et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Fine Root Production and Turnover Along a Forest Succession After Slash-and-Burn Agriculture

Aryal,

Morales Ruiz,

Molina Alvarado

et al. 2024

Trop Subtrop Agroecosyst

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Background. Fine root production and turnover are the fundamental processes of net primary productivity in forest ecosystems. Fine root production and turnover rates can vary with the successional gradients of the forest ecosystems created by land use changes. Objective. To evaluate the variations in fine root production and turnover along the successional gradients of tropical secondary forests and compare them with adjacent primary forests. Methodology. A total of 256 cylindrical ingrowth bags (of 8 cm diameter and 30 cm depth) were established in 16 forest stands representing four stages of succession. Four ingrowth bags from each stand were collected at an interval of about three months. Live and dead fine roots (≤2 mm diameter) were separated, washed, oven-dried, and weighed. Results. There was no significant difference in annual fine root productivity between secondary forests and primary forests but the fine root turnover rates were higher in secondary forests than in primary forests. Fine root production rates varied from 1.9 to 2.8 Mg of dry biomass ha-1 yr-1 while fine root turnover over rates ranged from 1.1 to 1.5 yr-1. Fine root production was higher in the dry season compared to the wet season. Implications. The results on fine root dynamics can be useful in modeling below-ground mechanisms of carbon sequestration in forest ecosystems during succession. Conclusions. Fine root productivity did not vary with forest age but the relative turnover rates were higher in secondary forests than in primary forests. Tree basal area was a significant predictor of fine root production.

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“…Wetland ecosystem and its vegetation provide a wide range of ecosystem goods and services to the inhabitants ( Gosain et al., 2015 ; Fartyal et al., 2022 ). Overexploitation of natural resources has created a big gap between the demand and supply of the natural goods ( Manral et al., 2020 ; Pandey et al., 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Environmental and anthropogenic drivers of watercress (Nasturtium officinale) communities in char-lands and water channels across the Swat River Basin: implication for conservation planning

Khan,

Ullah,

Okla

et al. 2023

Front. Plant Sci.

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Recent anthropogenic sources and excess usage have immensely threatened the communities and habitat ecology of this region’s medicinally and economically significant crops. Therefore, our study aims to evaluate the community structure and related environmental characteristics sustaining Nasturtium officinale communities along the river basin (RB) in Northwest Pakistan, using the clustering procedure (Ward’s method) and Redundancy analysis (RDA). From 340 phytosociological plots (34 × 10 = 340), we identified four ecologically distinct assemblages of N. officinale governed by different environmental and anthropogenic factors for the first time. The floristic structure shows the dominance of herbaceous (100%), native (77%), and annual (58.09%) species indicating relatively stable communities; however, the existence of the invasive plants (14%) is perturbing and may cause instability in the future, resulting in the replacement of herbaceous plant species. Likewise, we noticed apparent variations in the environmental factors, i.e., clay percentage (p = 3.1 × 10−5), silt and sand percentage (p< 0.05), organic matter (p< 0.001), phosphorus and potassium (p< 0.05), and heavy metals, i.e., Pb, Zn, and Cd (p< 0.05), indicating their dynamic role in maintaining the structure and composition of these ecologically distinct communities. RDA has also demonstrated the fundamental role of these factors in species–environment correlations and explained the geospatial variability and plants’ ecological amplitudes in the Swat River wetland ecosystem. We concluded from this study that N. officinale communities are relatively stable due to their rapid colonization; however, most recent high anthropogenic interventions especially overharvesting and sand mining activities, apart from natural enemies, water deficit, mega-droughts, and recent flood intensification due to climate change scenario, are robust future threats to these communities. Our research highlights the dire need for the sustainable uses and conservation of these critical communities for aesthetics, as food for aquatic macrobiota and humans, enhancing water quality, breeding habitat, fodder crop, and its most promising medicinal properties in the region.

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Temporal variability in fine root dynamics in relation to tree girth size in sub‐tropical sal (Shorea robusta) forests

Cited by 19 publications

References 64 publications

Land degradation and development in India: Status quo, challenges and opportunities

Land degradation and development in India: Status quo, challenges and opportunities

Fine Root Production and Turnover Along a Forest Succession After Slash-and-Burn Agriculture

Environmental and anthropogenic drivers of watercress (Nasturtium officinale) communities in char-lands and water channels across the Swat River Basin: implication for conservation planning

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