Results 11 to 20 of about 71 (68)

采煤塌陷对风沙区土壤理化性质影响的研究

open access: yesShuitu Baochi Xuebao, 2006
为了研究采煤塌陷对风沙区土壤理化性质的影响,为干旱和半干旱风沙区采煤塌陷地的复垦工作提供理论依据,本文运用土壤学基本理论和方法,测定、计算了毛乌素沙地东南缘补连塔煤矿塌陷区和非塌陷区的土壤机械组成、容重、孔隙度、田间持水量、饱和导水率和养分等指标。方差分析结果表明:与非塌陷区相比,塌陷沙丘物理性粘粒含量明显减少,尤其地表10 cm处;塌陷沙丘顶部和中部土壤容重和孔隙度没有明显变化,而沙丘底部和丘间低地土壤容重明显降低,孔隙度明显增大;塌陷沙丘0~40 cm内土壤容重和孔隙度无明显变化,但40~100 ...
王健   +4 more
doaj   +2 more sources

Influence of mining-induced ground fissures on soil infiltration characteristics and its erosion effect in coal mining area of northern Shaanxi in the middle reaches of the Yellow River [PDF]

open access: yes
Cracking the soil and water loss effects of mining-induced surface fissures in the coal mining area of the middle reaches of the Yellow River is of great significance for ecological environment protection and high-quality development in the coal mining ...
Baodeng CHEN   +6 more
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Hydroecological effects of mining and its restoration ways in coal mining areas of Western China [PDF]

open access: yes
The mining areas in arid and semi-arid region have become important coal production bases to ensure China’s energy strategic security, however, coal development by large-scale and high-intensity mining has triggered a series of water resources and ...
Guangrong GE   +7 more
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Principles and key technologies for the large-scale ecological utilization of coal gangue [PDF]

open access: yes
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
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Study on DNA Damage of Fish's Liver Cells Induced by Polluted Water of Coalmine Subsidence Area [PDF]

open access: yes, 2010
采用单细胞凝胶电泳(SCgE)技术,初步研究了永城煤矿塌陷区水污染对鱼类肝细胞dnA的损伤。结果表明:塌陷区鱼类肝细胞dnA损伤程度极显著高于对照组 ...
王兵丽, 闫永峰
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New way for green and low-carbon development of coal industry under the target of “daul-carbon” [PDF]

open access: yes
Under the background of “dual-carbon” goal and current technological conditions, coal, waste and carbon constitute an impossible triangle in the coal industry which severely constrains its green, low-carbon, and sustainable development.
Jianyou WANG   +10 more
core   +1 more source

Study on the effect of layered structure of overlying strata on soil damage in mining areas in the loess covered region of northern Shaanxi [PDF]

open access: yes
Ecological protection in coal mining areas is a major problem that needs to be solved urgently for high-quality development in the Yellow River Basin. Scientific understanding of the response law of the overlying strata of the coal seam to the surface ...
Jiangbo WEI   +7 more
core   +1 more source

Conception and practice of resource utilization, energization and functionalization of coal mining subsidence areas with high groundwater level [PDF]

open access: yes
Underground coal mining often leads to surface subsidence and water accumulation, changes in the ecological environment, as well as in the spatial pattern of land and water resources, in high groundwater level mining areas.
Liang YUAN, Liangji XU
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山东济宁采煤塌陷区新生湿地鸟类群落及多样性研究

open access: yes野生动物学报, 2017
山东济宁采煤导致地表塌陷积水,形成大面积新生湿地。在由农田转变为新生湿地后,处于不同塌陷时期的新生湿地,生物多样性发生明显变化。本文对山东邹城鲍店煤矿6个不同塌陷时间的采煤塌陷新生湿地和临近区域的非塌陷区(对照区)鸟类种类、数量、多样性进行了调查和比较研究。共记录鸟类105种,隶属15目39科,其中留鸟29种,旅鸟45种,冬候鸟5种,夏候鸟26种。研究区域新生湿地鸟类数量、多样性均显著高于对照区,表明采煤塌陷区新生湿地已经成为鸟类(尤其是湿地鸟类)重要的栖息地。分析结果表明,非塌陷区(以农田为主 ...
张乔勇 袁兴中 刁元彬 刘 红张冠雄 张梦婕 周李磊 王晓锋
doaj  

对徐州鼓楼区旅游业的调研与思考 [PDF]

open access: yes, 2015
徐州鼓楼区是旅游资源比较丰富的主城区,具有发展旅游业的先天优势,随着全区“退二进三“战略的实施,更是为旅游业的发展提供了良好契机。但旅游业在发展过程也存在着一些问题,通过此次调研,旨在提出相应的解决策略 ...
吴喜平, 朱斌
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