Results 31 to 40 of about 185 (80)
Mechanical properties and permeability characteristics of mudstone-slag-based water barrier material [PDF]
To investigate the influence of mudstone content and curing age on the mechanical properties and permeability characteristics of mudstone-slag-based water barrier materials, using waste sandstone from open pit coal mine stripping was used as aggregate ...
Jiangsen ZHU +6 more
core +1 more source
Near-natural ecological restoration in open-pit mine area [PDF]
Ecological restoration in open-pit mining areas faces some problems such as low self-sustaining capacity and high maintenance costs, especially obvious mining traces after restoration.
Jianan XIA +3 more
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Shuitu Baochi Xuebao, 2001 以霍林河露天煤矿为例 ,通过对排土场不同地段植被的观察、野外小区实验和室内分析的方法 ,调查研究了天然地形风障以及人工沙棘风障对半干旱地区露天煤矿排土场平台植被恢复状况的影响。研究结果表明 ,地形与人工沙棘风障不仅起到防风作用 ,还可以改善土壤理化性质 ,促进其它植物的生长 ,防治水土流失 ,加速排土场的植被恢复与生态重建的进程。
贾宏宇 台培东 孙铁珩 李培军 常士俊 李文杰 张淑琴 李淑杰
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Shuitu Baochi Xuebao, 2001 以霍林河露天煤矿为例，通过对排土场不同地段植被的观察、野外小区实验和室内分析的方法，调查研究了天然地形风障以及人工沙棘风障对半干旱地区露天煤矿排土场平台植被恢复状况的影响。研究结果表明，地形与人工沙棘风障不仅起到防风作用，还可以改善土壤理化性质，促进其它植物的生长，防治水地，加速排土场的植被恢复与生态重建的进程。
贾宏宇 李文杰 等
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Shuitu Baochi Xuebao, 2020 选择晋陕蒙接壤区永利煤矿排土场沙打旺草地、紫花苜蓿草地、沙棘林地和原地貌草地土壤水分为对象，研究其蒸散、剖面分布、时间变化等特征，以期揭示土体重构及不同复垦植被模式对土壤水分及其时间稳定性影响。结果表明：排土场3种人工植被条件下土壤平均含水量同原地貌草地相比提高了50.7%~62.3%，另外，沙打旺复垦草地土壤含水量显著低于苜蓿复垦草地和沙棘复垦灌木林地（均降低了7.2%）。沙打旺和苜蓿会导致深层（120—260，120—220 cm）土壤水分亏缺，但有利于20—80 cm的土壤水分的保持 ...
张燕乐, 甄庆, 张兴昌, 马炳召
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露天矿大型排土场水蚀特征及其植被控制效果研究--以安太堡露天煤矿南排土场为例
Shuitu Baochi Xuebao, 2004 以山西省平朔露天煤矿安太堡矿南排土场1993～2002年径流小区定位观测为基础,对排土场未复垦、复垦种植2年、复垦种植10年等3个阶段产流产沙特征及其植被措施的减流减沙效果进行分析,初步建立了小区暴雨-产流-产沙经验模型,比较了不同植被及其配置模式的减流减沙效果,并提出了适合的植被与改进措施。
魏忠义 马锐 白中科 韩武波
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Strategies of high efficiency water usage promoted by microbial remediation in coal mining areas of western China [PDF]
The fragile ecological environment in the western coal mining areas of China, compounded by intensive mining activities, has led to water and soil erosion, soil degradation, and damaged root systems.
Chao WU +4 more
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Shuitu Baochi Xuebao, 2019 为探讨农牧交错带煤矿排土场不同植被复垦模式对土壤肥力的影响，以黑岱沟露天煤矿排土场不同植被类型（山杏+苜蓿（A1）、杨树+苜蓿（A2）、杨树+沙棘（A3）、杨树+披肩草+苜蓿（A4）、未复垦（CK））土壤为研究对象，通过简单相关分析和通径分析研究浅层（0—20 cm）土壤化学性质和酶活性与土壤微生物量间的相关关系，揭示不同植被复垦下土壤微生物量差异的驱动因子，并采用土壤恢复指数（RI）评价不同植被复垦对露天煤矿排土场土壤质量的影响。结果表明：（1）与未复垦（CK）相比，不同植被复垦样地土壤有机质含量 ...
孙梦媛 +3 more
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Open-pit mine slopes stability analysis based on analytic hierarchy process-fuzzy comprehensive evaluation model [PDF]
The bench slope within an open-pit coal mine plays an important supporting role for coal resource production and transportation. The stability evaluation of the slope is of great significance in guiding continuous mining operations within the mine.
Lichun ZHAO +6 more
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Risk Assessment and Influencing Factors Analysis of Heavy Metals in Soil of Non-Surface Coal Mines in Southern Hebei Province [PDF]
Non-surface coal mining is an important means to obtain coal resources. It is crucial to study the influencing factors and ecological risks of soil heavy metal contents of non-surface coal mines for the protection and management of mine area ecosystems ...
Anbing ZHANG +5 more
core +1 more source