Assessment of environmental soil quality around Sonepur Bazari mine of Raniganj coalfield, India

Masto, Reginald Ebhin; Sheik, S.; Nehru, G.; Selvi, V. A.; George, Jino; Ram, L. C.

doi:10.5194/se-6-811-2015

Cited by 89 publications

(57 citation statements)

References 63 publications

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“…The soil BD values of the surface layer were lower than those of the other layers, probably due to the higher content of SOM, more plant root distribution, and better soil structure and texture . The bulk density of the red soil layers was higher probably because the natural compact structure was maintained (Masto et al, 2015). The lower soil BD values of the sandy layer and detritus layer may be due to weak weathering and loose soil structure (Lan et al, 2013).…”

Section: Bulk Density (Bd)mentioning

confidence: 99%

Soil Atterberg limits of different weathering profiles of the collapsing gullies in the hilly granitic region of southern China

et al. 2017

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Abstract. Collapsing gullies are one of the most serious soil erosion problems in the tropical and subtropical areas of southern China. However, few studies have been performed on the relationship of soil Atterberg limits with soil profiles of the collapsing gullies. Soil Atterberg limits, which include plastic limit and liquid limit, have been proposed as indicators for soil vulnerability to degradation. Here, the soil Atterberg limits within different weathering profiles and their relationships with soil physicochemical properties were investigated by characterizing four collapsing gullies in four counties in the hilly granitic region of southern China. The results showed that with the fall of weathering degree, there was a sharp decrease in plastic limit, liquid limit, plasticity index, soil organic matter, cation exchange capacity and free iron oxide. Additionally, there was a gradual increase in liquidity index, a sharp increase in particle density and bulk density followed by a slight decline, a decrease in the finer soil particles, a noticeable decline in the clay contents, and a considerable increase in the gravel and sand contents. The plastic limit varied from 19.43 to 35.93 % in TC, 19.51 to 33.82 % in GX, 19.32 to 35.58 % in AX and 18.91 to 36.56 % in WH, while the liquid limit varied from 30.91 to 62.68 % in TC, 30.89 to 57.70 % in GX, 32.48 to 65.71 % in AX and 30.77 to 62.70 % in WH, respectively. The soil Atterberg limits in the sandy soil layers and detritus layers were lower than those in the surface layers and red soil layers, which results in higher vulnerability of the sandy soil layers and detritus layers to erosion and finally the formation of the collapsing gully. The regression analyses showed that soil Atterberg limits had significant and positive correlation with SOM, clay content, cationic exchange capacity and Fe d , significant and negative correlation with sand content and no obvious correlation with other properties. The results of this study revealed that soil Atterberg limits are an informative indicator to reflect the weathering degree of different weathering profiles of the collapsing gullies in the hilly granitic region.

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Section: Bulk Density (Bd)mentioning

confidence: 99%

Soil Atterberg limits of different weathering profiles of the collapsing gullies in the hilly granitic region of southern China

et al. 2017

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“…Land degradation is a worldwide process that affects all five continents (Masto et al, 2015;Xu and Zhang, 2014;Thomas et al, 2015;Yan and Cai, 2015;Wang et al, 2013;Jafari and Bakhshandehmehr, 2013;Cerdà and Lavee, 1999;Bai et al, 2013). The process of land degradation deprives the quality of natural resources and impairs directly on human society (Izzo et al, 2013) through loss of ecosystem goods and services.…”

Section: Land Degradation In Senegalmentioning

confidence: 99%

Quantifying the impact of land degradation on crop production: the case of Senegal

2016

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Abstract. Land degradation has been a persistent problem in Senegal for more than a century and by now has become a serious impediment to long-term development. In this paper, we quantify the impact of land degradation on crop yields using the results of a nationwide land degradation assessment. For this, the study needs to address two issues. First, the land degradation assessment comprises qualitative expert judgements that have to be converted into more objective, quantitative terms. We propose a land degradation index and assess its plausibility. Second, observational data on soils, land use, and rainfall do not provide sufficient information to isolate the impact of land degradation. We, therefore, design a pseudo-experiment that for sites with otherwise similar circumstances compares the yield of a site with and one without land degradation. This pairing exercise is conducted under a gradual refining of the classification of circumstances, until a more or less stable response to land degradation is obtained. In this way, we hope to have controlled sufficiently for confounding variables that will bias the estimation of the impact of land degradation on crop yields. A small number of shared characteristics reveal tendencies of "severe" land degradation levels being associated with declining yields as compared to similar sites with "low" degradation levels. However, as we zoom in at more detail some exceptions come to the fore, in particular in areas without fertilizer application. Yet, our overall conclusion is that yield reduction is associated with higher levels of land degradation, irrespective of whether fertilizer is being applied or not.

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“…Moreover, the soil system is damaged by millennial use and abuse of soil resources, and the soils are failing to supply humankind with goods and services due to the degradation of soil structure, loss of soil quality, and loss of soil fertility (Dai et al, 2015;Masto et al, 2015;Zhao et al, 2015;Cerda, 1998;Costa et al, 2015). Pollution is one of the triggering factors of soil degradation and it is a worldwide problem Roy and Mcdonald, 2015;Mahmoud and Abd El-Kader, 2015).…”

Section: Introductionmentioning

confidence: 99%

Alleviating aluminum toxicity in an acid sulfate soil from Peninsular Malaysia by calcium silicate application

et al. 2016

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Abstract. In response to human population increase, the utilization of acid sulfate soils for rice cultivation is one option for increasing production. The main problems associated with such soils are their low pH values and their associated high content of exchangeable Al, which could be detrimental to crop growth. The application of soil amendments is one approach for mitigating this problem, and calcium silicate is an alternative soil amendment that could be used. Therefore, the main objective of this study was to ameliorate soil acidity in rice-cropped soil. The secondary objective was to study the effects of calcium silicate amendment on soil acidity, exchangeable Al, exchangeable Ca, and Si content. The soil was treated with 0, 1, 2, and 3 Mg ha −1 of calcium silicate under submerged conditions and the soil treatments were sampled every 30 days throughout an incubation period of 120 days. Application of calcium silicate induced a positive effect on soil pH and exchangeable Al; soil pH increased from 2.9 (initial) to 3.5, while exchangeable Al was reduced from 4.26 (initial) to 0.82 cmol c kg −1 . Furthermore, the exchangeable Ca and Si contents increased from 1.68 (initial) to 4.94 cmol c kg −1 and from 21.21 (initial) to 81.71 mg kg −1 , respectively. Therefore, it was noted that calcium silicate was effective at alleviating Al toxicity in acid sulfate, rice-cropped soil, yielding values below the critical level of 2 cmol c kg −1 . In addition, application of calcium silicate showed an ameliorative effect as it increased soil pH and supplied substantial amounts of Ca and Si.

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Assessment of environmental soil quality around Sonepur Bazari mine of Raniganj coalfield, India

Cited by 89 publications

References 63 publications

Soil Atterberg limits of different weathering profiles of the collapsing gullies in the hilly granitic region of southern China

Soil Atterberg limits of different weathering profiles of the collapsing gullies in the hilly granitic region of southern China

Quantifying the impact of land degradation on crop production: the case of Senegal

Alleviating aluminum toxicity in an acid sulfate soil from Peninsular Malaysia by calcium silicate application

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