Results 21 to 30 of about 49 (48)
Shuitu Baochi Xuebao, 2020 土壤团聚体的数量和质量直接影响着土壤性质和有机碳固存。研究不同施肥措施及施肥年限对采煤塌陷区复垦土壤团聚体的重量分布比例及其稳定性的影响，可为该区农业生产和土壤质量提升提供科学依据。采集复垦6，11年定位试验不同施肥处理耕层（0—20 cm）土样，选取不施肥（CK）、平衡施氮磷钾化肥（NPK）、单施有机肥（M）、有机无机肥配施（MNPK）4个处理，利用干筛法和湿筛法获得4种粒径的团聚体/粉黏粒组分（> 2，0.25~2，0.053~0.25，< 0.053 mm），用>0.25 mm团聚体的含量（R0 ...
谢钧宇 +7 more
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Shuitu Baochi Xuebao, 2011 以山西省太原市西峪煤矿的采煤塌陷区为试验地,进行了荞麦的施肥试验,并对采煤塌陷区土壤及植物中Cu、Pb、Zn、Cd等重金属的含量进行了测定,探讨了不同施肥条件下荞麦对重金属的吸收作用,用单因子指数法评价了荞麦收获期土壤重金属含量水平,富集系数法讨论了植物对重金属的富集程度,最后用Hakanson生态风险指数法对土壤潜在的生态风险进行了评价。研究结果表明:试验区的土壤Cd含量和Pb含量高于山西省土壤背景值,Cu和Zn低于背景值;成对T检验结果表明荞麦花期和收获期的4种重金属含量均有显著差异 ...
王兵 +5 more
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New way for green and low-carbon development of coal industry under the target of “daul-carbon” [PDF]
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
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Shuitu Baochi Xuebao, 2020 为揭示不同有机肥对煤矿复垦土壤氮素矿化特性的影响，以山西省孝义市水峪煤矿采煤塌陷复垦土壤为研究对象，采用室内好气培养法，研究在40%含水量和30℃培养条件下，施用3种有机肥（鸡粪、猪粪、牛粪）后在0~161天的氮素矿化动态特征，以明确不同有机肥对该矿区复垦土壤氮素矿化特征，从而预估不同有机肥的供氮特性，为合理施用有机肥进行低产农田的培肥改造提供科学依据。结果表明：（1）各处理0~14天铵态氮含量均随培养时间的延长迅速下降，与培养时间呈极显著负相关关系（P 猪粪 > 牛粪 > 空白 ...
张若扬 +6 more
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Hydroecological effects of mining and its restoration ways in coal mining areas of Western China [PDF]
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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Shuitu Baochi Xuebao, 2003 在潞安矿业集团五阳矿区采煤塌陷地上,按照混推和剥离两种复垦技术,分复垦种植l年、3年和5年进行采样,对不同复垦技术及时间条件下土壤养分(有机质、氮、磷、钾)和重金属元素(镉、铅、铬、汞)含量以及物理性质(容重、毛管持水量、总孔隙度、团粒结构)进行采样分析研究。结果表明:1剥离复垦耕地的土壤肥力基本保持不变,耕层养分高于底层,并呈逐年上升趋势;2混推复垦耕地的土壤肥力低且不匀,必须采取措施尽快提高地力;3土壤重金属元素含量的变化主要受矿区粉尘和污水影响,与土地复垦技术和年限关系不大 ...
孙泰森 师学义 杨玉敏 孟繁华
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Effect of AMF inoculation on root distribution and water use efficiency of Amorpha fruticosa L in western coal mining area [PDF]
Coal mining in arid and semi-arid areas has led to the emergence of large areas of coal mining subsiding areas. The ecological reclamation of mining areas is hard, and the mycorrhizal microbial technology for ecological restoration has become a current ...
Chao WU +4 more
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Shuitu Baochi Xuebao, 2003 矿区水土流失是一种典型的人为加速侵蚀,存在着明显不同于原地貌的侵蚀特征:井工开采引起的地表塌陷,使地表变形、坡度加大、侵蚀加重,对地下水质也造成污染;露天开采排出的大量松散堆积物,由于地表严重压实和非均匀沉降,促使径流大量汇集,引起崩塌、滑坡、泥石流等地质灾害,同时增加了入河泥沙量,造成河道淤积、行洪困难.本文论述了采矿塌陷地、煤矸石山、排土场的水土流失特征,采矿对新增入河泥沙的影响,探讨了国内外矿区水土流失的防治所采用的工程措施和生物措施、动态监测水土流失的模型,以及今后尚需研究的内容.
吕春娟, 白中科, 赵景逵
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Numerical simulation of plant root system stress response to coal mining disturbances in semiarid mining areas [PDF]
Root damage is a critical ecological issue affecting vegetation in semi-arid underground coal mining areas. The mechanisms and influencing factors of root stress damage induced by stress changes in the root-soil layer due to mining-induced rock mass ...
Chuangang GONG +8 more
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