Hydrogeochemical characterization and suitability assessment of groundwater in a typical coal mining subsidence area in China using self-organizing feature map

Zhao, Di; Zeng, Yifan; Wu, Qiang; Mei, Aoshuang; Gao, Shi; Du, Xin; Yang, Wei

doi:10.1007/s12665-022-10596-2

Cited by 11 publications

(2 citation statements)

References 27 publications

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“…It is estimated that every 1000 tons of coal mined in China results in about 0.002-0.0033 km 2 of land subsidence and increases the subsidence area by about 700 km 2 each year [6]. Under the action of high phreatic water levels and atmospheric rainfall, different areas of ponding have been formed in coal-mining subsidence areas [7]. Coal-mining subsidence soil evolves into aquatic sediment in which heavy metals, nutrients, and microorganisms in the soil will be released into the aquatic environment and become potential pollution sources [8].…”

Section: Introductionmentioning

confidence: 99%

Microbial Community Structure and Co-Occurrence Patterns in Closed and Open Subsidence Lake Ecosystems

Wang

Fan

et al. 2023

Water

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Different types of subsidence lakes formed by underground coal mining are severely polluted by mine-production wastewater, domestic sewage, and agricultural irrigation water. Microbial communities perform a crucial role in biogeochemical cycling processes and responses to natural and anthropogenic disturbances in lake waters. Therefore, it is important to investigate the characteristics of microbial community diversity in subsidence lakes for the utilization of water resources in mining areas. In this study, we collected water samples from open and closed subsidence lakes and explored the bacterial communities based on Illumina amplicon high-throughput sequencing. Results showed that bacterial diversity and community and functional composition in open and closed lakes differed greatly, and the bacterial diversity in open lakes was significantly higher than that in closed lakes (p < 0.001). Canonical correspondence analysis found that pH explained 31.73% and 39.98% of the variation in the bacterial community and functional composition in closed lakes, while NH4+ and COD accounted for 29.73% and 26.02% of the changes in the community and functional composition in open lakes, respectively. Modified stochasticity ratios based on null-model analysis demonstrated that stochastic processes were the main factor affecting bacterial community assembly in both closed (MST = 0.58) and open lakes (MST = 0.63). In the closed-lake network, hgcI_clade was inferred to be a keystone species, while Lactococcus, Acinetobacter, Psychrobacter, and Chryseobacterium were detected as keystone species in the open-lake network. By way of discussion, we provide evidence regarding the bacterial community diversity, structure, co-occurrence patterns, and assembly processes in closed and open subsidence lakes. This study contributes to providing a reference for the utilization of subsidence water resources.

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Section: Introductionmentioning

confidence: 99%

Microbial Community Structure and Co-Occurrence Patterns in Closed and Open Subsidence Lake Ecosystems

Wang

Fan

et al. 2023

Water

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“…Nonlinear dynamics, by their very nature, encompass complexities that are markedly distinct from their linear counterparts [4]. Nonlinear spacecraft, which exhibit behaviors not proportionate to their inputs, necessitate a nuanced understanding and a tailored control strategy to ensure they operate optimally [5].…”

Section: Introductionmentioning

confidence: 99%

Self-Organizing Control Systems for Nonlinear Spacecraft in the Class of Structurally Stable Mappings

Abdiramanov,

Taiman,

Beisenbi

et al. 2023

IJACSA

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In recent developments within the domain of aerospace engineering, there is a burgeoning interest in the autonomous control of nonlinear spacecraft using advanced methodologies. The present research delves deep into the realm of self-organizing control systems tailored for such nonlinear spacecraft, emphasizing its application within the framework of structurally stable mappings. By harnessing the inherent characteristics of structurally stable mappingsoften renowned for their resilience to minor perturbations and local modificationsthis research endeavors to design a control mechanism that mitigates the challenges presented by the intrinsic nonlinearity of spacecraft dynamics. Initial findings suggest a commendable enhancement in spacecraft maneuverability and robustness against unforeseen disturbances. Furthermore, the employment of self-organization principles leads to an adaptive and resilient system that can reconfigure its control strategies in real-time, basing decisions on immediate environmental feedback. This adaptability, in essence, mimics biological systems that evolve and adapt in the face of challenges. Such a breakthrough in nonlinear spacecraft control not only widens the horizons for space exploration by making missions safer and more efficient but also contributes foundational knowledge to the broader field of nonlinear dynamic system controls. Researchers and practitioners are encouraged to explore this synergistic combination of self-organization and structurally stable mappings to further harness its potential in diverse arenas beyond aerospace.

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Evaluación de la vulnerabilidad a las irrupciones de agua y análisis de viabilidad de la explotación minera bajo ríos: Estudio de caso de la mina de carbón de Jinjie (China)

Mei

Zeng

et al. 2023

Mine Water Environ

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Hydrogeochemical characterization and suitability assessment of groundwater in a typical coal mining subsidence area in China using self-organizing feature map

Cited by 11 publications

References 27 publications

Microbial Community Structure and Co-Occurrence Patterns in Closed and Open Subsidence Lake Ecosystems

Microbial Community Structure and Co-Occurrence Patterns in Closed and Open Subsidence Lake Ecosystems

Self-Organizing Control Systems for Nonlinear Spacecraft in the Class of Structurally Stable Mappings

Evaluación de la vulnerabilidad a las irrupciones de agua y análisis de viabilidad de la explotación minera bajo ríos: Estudio de caso de la mina de carbón de Jinjie (China)

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