Results 11 to 20 of about 146 (73)

不同施肥措施对旱地采煤塌陷区复垦土壤结构及玉米品质的影响

open access: yesShuitu Baochi Xuebao, 2021
研究不同施肥措施对复垦土壤结构及玉米品质的影响,以期深入理解采煤塌陷区复垦土壤有机碳固持机制。采集复垦1年的定位试验各处理耕层(0—20 cm)土样以及玉米籽粒,分析土壤水稳性团聚体(>2,0.25~2,0.053~0.25 mm)及粉黏粒组分(2 mm和0.25~2 mm团聚体中有机碳含量、籽粒产量、蛋白质、淀粉和脂肪含量,增幅分别为44.77%,13.23%,52.73%,60.22%,255.15%,23.28%,1.67%和12.71%;MNPK处理显著提高SOC、TN ...
曹寒冰   +8 more
doaj  

Soil Preferential Flow Characteristics in Coal Mine Subsidence Area under Different Rainfall Duration [PDF]

open access: yes
[Objective] Research on the preferential flow characteristics triggered by cracks in coal mining subsidence areas can provide support for scientific and rational development of water resource management and ecological management practice in the mining ...
DAI Bin   +4 more
core   +1 more source

Systematic protection and restoration of water bodies in collapse areas based on surface runoff regulation [PDF]

open access: yes
In order to solve the problems of surface runoff disorder, poor water connectivity, and weak hydrodynamic water circulation capacity in high groundwater level mining areas in the east, and to reduce the non-point source pollution and point source ...
Dong GUO   +5 more
core   +1 more source

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
core   +1 more source

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
core   +1 more source

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
core   +1 more source

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
core  

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

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