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Hydrologic Modeling Impacts of post-mining Land Use Changes on Streamflow of Peace River, Florida

Chinese Geographical Science 2015年第6期25卷 728-738页

作者： ZHANG Jing Mark ROSS Key Laboratory of Resource Environment and GIS in Beijing Capital Normal University Department of Civil and Environmental Engineering University of South Florida

Whether mining activity results in reduced flow of surface water in the Peace River Watershed of Florida has been the subject of much debate. With increased dependence of downstream users on surface water flow of the Peace River as a source of drinking water for four coastal counties in Southwest Florida and problems of water security, the debate has been intensified. It is possible to assess relationships of mining with streamflow in the upper reaches of the Peace River Basin using hydrologic modeling and identify mined sub-basins. In this work, land-use change impacts were simulated by the Hydrological Simulation Program--Fortran （HSPF） model based on geographical information system （GIS） tools, to compare pre- and post-mining streamflows at a study site of the Peace River in west-central Florida. The purpose of this study was to determine if land-use changes caused by mining have negatively impacted streamflow in the Peace River. Changes of land use were identified before and after mining activities. A coupled volume-water depth-discharge （V-h-Q） model based on stage/storage and stage/discharge was applied using HSPF for the pre-mining and post-mining models, respectively. Daily simulated post-mining hydrographs from HSPF were plotted with the calibrated pre-mining results and streamflow hydrographs from the 18 gauging stations, to compare timing of peaks, low fows and flow trends. Analyses of percent ex- ceedances of flow frequency curves of the streams indicated that most streams had similar distributions for mined （reclaimed） and pre- mining periods. In the streamflow change analysis, streamflows actually increased in mining-affected basins at nearly half the stations. Streamflows at other stations diminished. Overall from this comprehensive study, there were declines in streamflow at most gauging stations on the mainstem of the Peace River and its tributaries. The results of this study suggest that regional planning is urgently needed to propose reclamation s

关键词： post-mining land-use changes streamflow hydrologic model Hydrological Simulation Program--Fortran (HSPF) model

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post-mining Water Management Using Macrophytes and Substrate Media

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Journal of Environmental Science and Engineering(B) 2020年第5期9卷 200-205页

作者： Indun Titisariwati Hadi Oetomo Muhammad Tri Aditya Waterman Sulistyana Bargawa Department of mining Engineering University of Pembangunan Nasional Veteran YogyakartaYogyakarta 55283Indonesia Faculty of Economy University of Pembangunan Nasional Veteran YogyakartaYogyakarta 55283Indonesia

Feldspar mine may cause environmental ***-mining lake water pollute the environment because it has a low pH containing heavy metals such as aluminium(Al).The research objective was to analyze the effectiveness of water quality changes using Eichorniasp and Thypaangustifolia plants with organic substrates,and to analyze the results of water quality management based on wastewater quality *** results showed that the treatment using water from pit lake+material pit lake+clumps of Thypaangustifolia+organic substrate was declared effective in increasing pH and reducing TSS and dissolved metals at 15 days of treatment,indicated by a pH value of 6.7-7.04,a TSS value of 1,710 mg/l to 108 mg/l,and decreased grade Al from 233.0975 mg/l to 190.77 mg/*** quality standard for Al dissolved metal management has not reached the waste water quality standard,while the results of pH and TSS management are in accordance with the quality standards stipulated with the provisions concerning the wastewater quality standard.

关键词： post-mining passive remediation water quality

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Geotourism Development in post-mining Area

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Journal of Geological Resource and Engineering 2020年第4期8卷 101-105页

作者： Waterman Sulistyana Bargawa Ketut Gunawan Department of mining Engineering UPN Veteran YogyakartaJl.SWK 104 Yogyakarta 55283Indonesia

Generally,the morphology of the post-mining area is steep *** on geotechnical considerations,the area is no longer allowed for mining areas,because the potential for landslides is very *** development of the natural potential of the post-mining area in the research area is a geotourism area in the form of outcrops of pumice breccias and karst *** positive impact on society is the opportunity to get a job or business opportunity in providing *** is a sustainable nature tourism activity with a main focus on the geological appearance of the earth’s surface in order to encourage environmental and cultural understanding,appreciation and conservation as well as local *** concept of geotourism emphasizes the beauty,uniqueness and rarity of a natural phenomenon that is closely related to geological *** results of the study indicate the potential for geotourism that includes views of geological structures,stratigraphy,topography,rock *** planning of geotourism is the making of a grand design for geotourism facilities and infrastructure,including a rock museum in the open air,gazebo,jogging track,hiking track,bicycle track,camping area,and viewpoint.

关键词： Geotourism geology grand design community empowerment post-mining

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Numerical assessment of the influence of former mining activities and plasticity of rock mass on deformations of terrain surface

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International Journal of mining Science and Technology 2021年第2期31卷 209-214页

作者： PawełSikora Marek Wesołowski Department of mining Faculty of MiningSafety Engineering and Industrial AutomationSilesian University of Technology44-100 GliwicePoland

This paper presents the results of numerical simulations carried out to confirm the influence of former mining activities on deformation of the mining *** assessment of deformation changes was carried out with the use of FLAC3 D program based on the finite difference *** calculations were carried out for the example of actual mining operations in seams 703/1-2 and 707/2 of‘‘Marcel"Coal *** into account the influence of the model’s plastic features and the so-called activation of a higher occurring seam in conducted simulations enabled obtaining a very good description of the measured *** on the results one may state that numerical model can be used to assess the influence of former mining activities and the direction of conducted exploitation on deformations of the mining *** factors are not recognized by geometric-integral theories commonly used for predicting the influence of mining operations on the *** results presented in this paper confirm that the applied method of simulating the phenomenon of reactivation of post-mining goafs is correct.

关键词： Rock mass Numerical modeling post-mining Goafs Land surface deformations

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Potential for carbon sequestration in reclaimed mine soil on reforested surface mining areas in Poland

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Natural Science 2010年第9期2卷 1015-1021页

作者： Marcin Pietrzykowski Wojciech Krzaklewski 不详

Reclaimed mine soils (RMS) which develop on post-mining sites play significant role in Carbon sequestration in new ecosystems, especially in local range on areas disturbed by human activity. This study presents the potential for Carbon sequestration in RMS developing on 3 post sur- face mining areas in Poland (Central Europe) reforested with Scots pine (Pinus sylvestris L). Research was conducted on waste heaps and quarry which accompany open cast lignite, sul- fur, and sand mining. Control plots were arrang- ed in managed pine forests on natural sites in the surrounding area. The results shows high Carbon accumulation in RMS, estimated on 16.77 Mg?ha-1 in poor (oligotrofic) soils on Quaternary sands on sand quarry and up to 65.03 Mg?ha-1 on external waste heap after Sulfur sur- face mining exploitation on Quaternary sands mixed with Tertiary clays. These results were very similar to natural forest soils on control plots. Potential rate of Carbon sequestration in RMS was estimated on 0.73 (on the poorest sa- ndy soils on quarry) to 2.17 Mg?ha-1?yr-1 (on potentially abundant sandy-clayish soils on Sulfur waste heap), and 5.26 Mg?ha-1?yr-1 (on Tertiary sands substrate soils on lignite mining waste heap). In conslusion the average Carbon accu- mulation in RMS was estimated on 41 Mg?ha-1 and Carbon sequestration rate was 1.45 Mg? ha-1?yr-1. According to the result of this study and range of post-mining areas reclaimed to forestry in Poland (ca 15000 ha) total Carbon accumulation in RMS was estimated on 615 × 103 Mg and potential Carbon sequestration rate in new ecosystems on 21.75 × 103 Mg?ha-1?yr-1. However, the main factors affecting Carbon sequestration and protection in RMS under tree stand were substrate, percentage of clay and silt sized fraction, in order to formulate guidelines for sustainable management of post-mining ec- osystem, further study must be continue for be- tter understanding.

关键词： post-mining Ecosystem Reclaimed Mine Soils Reforestation Carbon Sequestration

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