Does coal fly ash influence the growth of mangroves?

Hossain, Mahmood; Saha, Chameli; Hossain, Md. Sazzad; Rahman, Md. Towhidur; Tanvir, Md. Seikh Sadiul Islam; Roy, Sunanda; Bashar, Abul; Rabby, Fozlay; Ahmed, Shah Newaz; Ali, Md. Hazrat

doi:10.1016/j.envc.2021.100201

Cited by 2 publications

(3 citation statements)

References 37 publications

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“…In Bangladesh, an experiment was carried out with the introduction of mangrove forest vegetation to the surface of setting tanks where fly ashes from hard coal combustion were stored. The species of the mangrove forest showed good growth and development at a dose of 10% ash mixed with soil [19].…”

Section: Introductionmentioning

confidence: 99%

“…This method of application improves the soil water retention in the top layer (0-40 cm) and enables the preservation of the upper horizons, protecting them from over mixing [5]. The fly ash from the coal combustion is often highly reactive in the soil environment and can change physical and chemical properties of the soil profiles, which can lead to the alteration in the trophic status of the habitat [15,18,19]. This may have a positive effect on the plant's growth and development.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Fly Ash on Soil Properties and Vegetation of Fresh Coniferous Forest during Long-Term Observation

Bogacz,

Kasowska,

Telega

et al. 2024

Forests

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Fly ashes produced in huge amounts during coal combustion requires proper management. The purpose of this study was to determine the impact of fly ash from burning hard coal used in large doses (250, 500, 1000 and 2000 t ha−1) on soil properties and vegetation of fresh mixed coniferous forest within 43 years from the ash application. The experiment was established in the Podzols in the forest habitat of Czułów, Katowice Forest district, Upper Silesia, Poland. Eight tree species were planted in ridges created by ploughing: Pinus sylvestris, P. nigra, Larix decidua, Betula pendula, Quercus robur, Q., Acer pseudoplatanus and Fagus sylvatica. The changes in soil morphology caused significant transformations in the physical and chemical properties of the soil such as soil texture, pH, macronutrients (P, K and Mg) content and C:N ratio. Increasing of ash doses changed the granulometric composition of the soil levels from loamy sand (250 t/ha−1) to silt loam (2000 t ha−1). Initially, the acidic Podzols were alkalized under the influence of the fly ash and then acidified, possibly due to the impact of accumulated litter layers, and the reaction of organic soil horizons changed from strongly acidic (250–1000 t ha−1) to alkalis (2000 t/ha−1). The macronutrients content increased in proportion to the fly ash dose, but the subsequent acidification resulted in a gradual decrease in the macronutrients share in the soil layers. The value of the C:N ratio grew after the ash application and then it gradually reduced, even by half. The transformations of soil horizons’ properties also increased the capacity of the soil sorption complex (CEC). All these processes led to a change in the trophic status of the habitat expressed by the soil habitat index (SIG) and the initial coniferous forest site can be classified as a mixed forest habitat even with the lowest ash dose used. The composition of plant communities developed forty years after the ash application was similar at the lower ash doses and the most frequent and abundant tree species were L. decidua, P. nigra and P. silvestris. B. pendula was previously co-dominant, but it was eliminated from the tree stands during the experiment. Planted trees characteristic of late stages of succession, such as Q. robur, Q. rubra, F. sylvatica and A. pseudoplatanus either did not survive or remained in very low quantities. The herb and moss layers developed in the process of spontaneous colonization, and together with the trees led to phytostabilisation of the bare substrates. After acidification of the topsoil horizons, the herb layers consisted mostly of coniferous, mixed, and deciduous forest species, and the most frequent or abundant were Lysimachia europea and Pteridium aquilinum. The moss layers were represented by coniferous forest flora. At the ash dose of 2000 t ha−1, Tilia cordata settled in one of the seral stages of spontaneous succession and this species dominated in the community and formed a dense tree stand. After the soil acidification, a shift from calcicole to calcifuge plant strategy took place among species of the herbaceous layer. The transformations of plant communities’ composition occurred in relation to changes in the soil properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Fly Ash on Soil Properties and Vegetation of Fresh Coniferous Forest during Long-Term Observation

Bogacz,

Kasowska,

Telega

et al. 2024

Forests

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“…They might disappear shortly due to ongoing deforestation if sustainable forest management strategies are not implemented (Salam et al 1999;Sunderland et al 2011). The primary causes of forest degradation in Bangladesh are encroachment, illegal logging, increased fuelwood demand, conversion of forest land to settlements, agricultural expansion, and unregulated industrialization (Iftekhar and Hoque 2005;Rahman 2015;Reza and Hasan 2019;Mahmood et al 2021). The government of Bangladesh has designated several forest regions as protected areas at various times to conserve valuable forest resources (Chowdhury and Koike 2010;Rahman and Islam 2021).…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal change detection of land use land cover (LULC) in Fashiakhali wildlife sanctuary (FKWS) impact area, Bangladesh, employing multispectral images and GIS

Hossain

Khan

Oluwajuwon

et al. 2023

Model. Earth Syst. Environ.

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Land cover change has posed significant concerns to biodiversity and climate change in Bangladesh and globally. Despite the country’s designation of forest regions as protected areas to conserve their valuable resources, deforestation and forest conversion remained unabated. Fashiakhali Wildlife Sanctuary (FKWS), a protected area in the Chittagong Hill Tracts, and its surrounding forested impact area have experienced considerable changes over the years, yet are deficient in extensive assessment. This study evaluated the land use land cover (LULC) changes in the FKWS impact area over almost 3 decades (1994–2021) using multispectral remotely sensed data. The Landsat images of 1994, 2001, 2010, and 2021 were classified using a maximum likelihood algorithm and analyzed for change detection. The comparative potential of vegetation indices, including Normalized Difference Vegetation Index (NDVI) and Soil Adjusted Vegetation Index (SAVI), in forest cover assessment, and the relationship between Land Surface Temperature (LST) and NDVI was also assessed. A significant forest cover loss of around 1117.17 ha (16%) was recorded in the FKWS impact area between 1994 and 2021, with the hugest proportion of 867.78 ha (12.24%) deforested in the first period (1994–2001). Agricultural land also declined by 593.73 ha (8.37%) within the entire period, despite its initial increase of 392.04 ha (5.53%) between 2001 and 2010, being the primary driver of earlier deforestation. However, in the recent decade (2010–2021), settlement expansion of 963.90 ha (13.59%) due to massive human migration in the area contributed to the most remarkable overall land cover change of 1731.51 ha (24.42%). Furthermore, NDVI provided a better and more accurate forest cover assessment than SAVI and was recommended to aid in the quick evaluation and monitoring of the future impacts of agriculture, settlement, and other sorts of land use on the forest cover. In tandem with the widely acknowledged issue of increased temperature due to climate change, an absolute negative correlation was found between the NDVI and LST, confirming the negative impact of climate change on forest loss in the FKWS impact area.

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Does coal fly ash influence the growth of mangroves?

Cited by 2 publications

References 37 publications

Influence of Fly Ash on Soil Properties and Vegetation of Fresh Coniferous Forest during Long-Term Observation

Influence of Fly Ash on Soil Properties and Vegetation of Fresh Coniferous Forest during Long-Term Observation

Spatiotemporal change detection of land use land cover (LULC) in Fashiakhali wildlife sanctuary (FKWS) impact area, Bangladesh, employing multispectral images and GIS

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