Results 11 to 19 of about 22 (19)
Shuitu Baochi Xuebao, 2016 以济宁地区引黄充填复垦、引湖充填复垦和预复垦3种复垦方式样地土壤为研究对象，通过分层采样和室内分析，研究不同复垦方式下土壤无机磷（Ca2-P、Ca8-P、Al-P、Fe-P、O-P、Ca10-P）的空间分布情况，并找出影响复垦土壤速效磷偏低的原因。结果表明：（1）3种复垦方式下的复垦土壤全磷含量在0.42～0.77 g/kg之间，土壤速效磷含量在0.65～5.22 mg/kg之间，复垦土壤全磷含量丰富而速效磷偏低；（2）复垦土壤各无机磷形态以难被植物利用的Ca10-P和O-P含量最高 ...
闵祥宇, 李新举, 刘, 许
doaj
Principles and key technologies for the large-scale ecological utilization of coal gangue [PDF]
Coal is the main energy in our country and the ballast stone of energy security. As an inevitable product in the process of coal mining and coal washing, coal gangue has an annual output of more than 700 million tons, which is in urgent need of large ...
Yanling ZHAO, Zhen MAO, Zhenqi HU
core +1 more source
Shuitu Baochi Xuebao, 2018 以济宁市粉煤灰充填复垦中的园地、耕地和林地为研究对象，研究不同利用方式对复垦土壤的有机碳组分空间分布的影响。通过现场分层采集土样和室内化验指标，研究有机碳组分（WDOC、POC、MOC、LFOC、HFOC、MBC）在不同利用方式土壤中的空间分布特征。结果表明：（1）3种利用方式的全碳（TC）、土壤有机碳（SOC）和土壤有机碳密度（SOCD）均偏低于对照耕地。不同利用方式之间TC、SOC和SOCD的大小关系均为复垦园地＞复垦林地＞复垦耕地。（2）不同利用方式之间有机碳组分差异明显（P＜0.05 ...
李奇超, 李新举
doaj
Advances in research on technologies for large-scale coal gangue utilization for green mine construction [PDF]
BackgroundThe coal gangue, a solid waste, features high production and a continuous increase in the amount piled in China. The long-term piling up of coal gangue will cause the waste of land resources and environmental pollution in mining areas.
Dawei XIE +4 more
core +1 more source
Connotation, research status, and development directions of clean coal geology in China [PDF]
[Objective] The exploration and assessment of low-carbon, zero-emission, and maximized utilization of coal resources, emerge as a focus of coal geology in the 21st century.
Harold H. Schobert +6 more
core +1 more source
Shuitu Baochi Xuebao, 2018 在济宁高潜水位矿区的充填复垦区内，分析完整复垦周期的土壤碳演变特征。通过从塌陷地（M1）、复垦年限为0，3年的复垦耕地（M2、M3）以及正常耕地（M4）采集土样并检测土壤全碳（TC）、有机碳（SOC）、有机碳密度（SOCD）、有机碳组分（WDOC、POC、MOC、LFOC、HFOC、MBC）及稳定性同位素（δ13C），研究不同复垦周期阶段下土壤碳空间特征的变化情况。研究表明：（1）塌陷地的TC、SOC、SOCD和各有机碳组分含量较低。经过复垦措施期后，SOCD在复垦当年就恢复到正常耕地的水平 ...
李奇超, 李新举, 闵祥宇
doaj
Shuitu Baochi Xuebao, 2017 以东部高潜水位采煤塌陷耕地为研究对象，研究挖深垫浅复垦、充填复垦、预复垦3种复垦方式下土壤热导率的分布及原因。在3种复垦方式典型样地上开挖剖面，分别取0—20，20—40，40—60 cm土层土样，经试验分析观测土壤热导率及相关物理指标。结果表明：（1）复垦方式、剖面层次和二者交互作用均是使热导率产生显著差别的因素 ...
闵祥宇, 李新举
doaj
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