Evolution of soil quality on a subsidence slope in a coal mining area: a complex network approach

Zhang, Xiao; Li, Fang; Li, Xinju

doi:10.1007/s12517-022-09815-8

Cited by 4 publications

(2 citation statements)

References 68 publications

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“…However, it changed to Hg and Cu in scenic areas. It indicates that the altitude and soil Hg concentration are the key indicators that feature the strongest direct correlation with other soil quality variables in control sites and scenic areas, respectively [42]. Therefore, it can be further inferred that Hg pollution of scenic areas in Mt.…”

Section: Network Topological Parametersmentioning

confidence: 90%

The Evaluation and Key-Factor Identification of the Influence of Tourism on the Soil of Mount Tai

Wang

et al. 2022

Sustainability

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Tourism has been proven to disturb the soil environments and stimulate heavy metal accumulation in scenic areas. Currently, research on the driving mechanisms of the impact of tourism on soil quality degradation is limited. Therefore, the aim of this study was to introduce a complex network method to comprehensively depict the impact of tourism on soil quality. To explore the key influencing factors, we collected 10 topsoil samples and 10 corresponding control samples from representative scenic areas in Mount Tai. Soil physicochemical properties (organic matter (OM), alkali dispelled nitrogen (AN), total nitrogen (TN), available phosphorus (AP), available potassium (AK), electrical conductivity (EC)), heavy metal (Cr, Cd, Pb, Hg, As, Cu) content, and microbial community diversity (by Eco-plate method) were analyzed. Additionally, complex networks of soil quality variables were established based on Pearson correlation coefficients. The results show that the OM, AN, and AP contents of scenic areas are 1.2, 1.03 and 1.18 times higher, while the AK content is 0.97 times lower, than those of the control sites, respectively (mean values of samples from scenic area vs. contorl sites). The single factor index of Hg, As, Pb, Cd, Cu, and Cr are increased from 3.65, 0.53, 0.85, 1.25, 0.78 and 0.58 to 3.69, 0.57, 1.24, 1.75, 0.97, 0.63 and 3.19, respectively, which means that tourism significantly exacerbates soil heavy metal accumulation. Additionally, the soil microbial activity and diversity are slightly reduced due to tourism. In general, the difference in the mean value of each soil quality variable between the scenic spot and the control site is not significant. However, tourism significantly reduced the connectivity and integrity of soil quality variables, which ultimately destabilized the soil, inferred from the comparison of the network’s topological parameters. Therefore, raising the content of soil OM and AN and controlling Cd pollution should be given more priority in soil ecosystem protection to counteract the negative impact of tourism on Mount Tai. It was the major limitation of the study that few typical scenic spots were selected as sampling points on Mount Tai. However, this study is sufficient to show that the complex network approach can be extended to other similar studies of soil quality degradation driving mechanisms.

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Section: Network Topological Parametersmentioning

confidence: 90%

The Evaluation and Key-Factor Identification of the Influence of Tourism on the Soil of Mount Tai

Wang

et al. 2022

Sustainability

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“…Many of the coal mines have varying degrees of land subsidence because of the raised groundwater and collapse of abandoned underground mine workings [2]. Coal-mining subsidence can cause loss of lives and properties, and trigger severe environmental pollution and imbalances of surface ecology [3,4], including the loss of soil water and nutrients (e.g., dissolved organic carbons, ammonia nitrogen, nitrate nitrogen, and available phosphorus [AP]), and the destroyed soil structure (e.g., soil bulk density, pore size distribution, and clay and silt percentage) [5][6][7]. Coal mining subsidence also produces profound impact on agricultural productivity through altering local topography, soil properties, underground hydrology, and soil microorganisms [2,8].…”

Section: Introductionmentioning

confidence: 99%

Coal‐mining subsidence changed distribution of the microbiomes and their functional genes in a farmland

et al. 2023

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Land subsidence is a serious geological event, and can trigger severe environmental and ecological issues. In this study, the influences of coalmining subsidence on distribution of farmland microbiomes and their functional genes were investigated by 16 S ribosomal RNA (rRNA) gene and metagenome sequencing. The results showed the existence of a core microbiome, which determined the community compositions across the subsidence farmland. Subsidence decreased the relative abundances of dominant Streptomyces, Nocardioides, and Rhizophagus, but increased the relative abundances of dominant Bradyrhizobium, Rhizobium, and Trichoderma. Subsidence also decreased the relative abundances of genes related to carbon metabolism, Quorum sensing, aminoacyl-transfer RNA (tRNA) biosynthesis, and oxidative phosphorylation, and increased the relative abundances of genes related to two-component system and bacterial chemotaxis. Furthermore, subsidence weakened the biosynthesis of organic carbons by decreasing the relative abundances of genes encoding glycosyl transferases, and strengthened decomposition of degradable organic carbons of the microbiomes and auxiliary activities by increasing the relative abundances of genes encoding glycoside hydrolases and polysaccharide lyases.The concentrations of total phosphorus, Mg 2+ , and Ca 2+ at the lower areas were significantly higher than those at the upper areas, indicating an associated loss of soil nutrients. Canonical correspondence analysis showed that soil moisture, pH, and the concentrations of NH 4 + and Ca 2+ were the main factors affecting the distribution of the microbiomes and their functional genes. Collectively, this study shows that coal-mining subsidence alters soil

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Soil reconstruction and heavy metal pollution risk in reclaimed cultivated land with coal gangue filling in mining areas

Song

et al. 2023

CATENA

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Evolution of soil quality on a subsidence slope in a coal mining area: a complex network approach

Cited by 4 publications

References 68 publications

The Evaluation and Key-Factor Identification of the Influence of Tourism on the Soil of Mount Tai

The Evaluation and Key-Factor Identification of the Influence of Tourism on the Soil of Mount Tai

Coal‐mining subsidence changed distribution of the microbiomes and their functional genes in a farmland

Soil reconstruction and heavy metal pollution risk in reclaimed cultivated land with coal gangue filling in mining areas

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