Results 91 to 100 of about 735 (148)
The promotion mechanism of how biochar affects the reclaimed soil microbial carbon sequestration capacity in coal mining areas [PDF]
Biochar application is a key measure for enhancing soil quality. However, the impact of biochar applications on the reclaimed soil for improvement on soil physicochemical properties, enzyme activity and microbial diversity is still unclear, especially ...
Fu CHEN +5 more
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A review of underground coal fire detection technology and engineering application [PDF]
Underground coal fires have a serious impact on coal resources and the environment, and the accurate detection of the location of fire areas is the premise and key to carrying out coal fire control. Based on the formation process of coal fire, this paper
CAO Shilong +3 more
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Shuitu Baochi Xuebao, 2019 通过1年静态培养试验，研究了鱼骨粉对碱性和酸性Cd污染土壤钝化修复效应、基本理化性质和酶活性的影响。结果表明：随着鱼骨粉施加量的增加，酸性和碱性土壤中pH、有机质和阳离子交换量增加，而含水率则较对照降低了2.90%~6.19%和0.10%~1.81%。土壤中TCLP（toxicity characteristic leachingprocedure）提取态Cd含量随鱼骨粉投加量增加而降低，较对照最大分别降低49.7%和17.0%。施加鱼骨粉后，碱性土壤中过氧化氢酶活性显著升高 ...
纪艺凝, 徐应明, 王农, 孙约兵
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Spatial Pattern and Influence Factor Analysis of Soil Organic Matter Based on the GeoDetector Model: Taking Liaoyang—Anshan Area as an Example [PDF]
Spatial pattern of organic matter distribution and its influencing factors in the study area can provide a decision-making basis for territorial spatial planning. The majority of previous studies in this area focused on the soil surface, and most of them
Cang GONG +8 more
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Research Progress on the Migration, Enrichment and Risk Assessment of Heavy Metals in a Soil-Grape System [PDF]
As potentially toxic elements, the pollution level of heavy metals in vineyard soils directly affects the ecosystem balance and human health. This study analyzes the current related literature, focusing on the characteristics of heavy metal content in ...
Chang LI +8 more
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Shuitu Baochi Xuebao[目的] 合理施用秸秆和有机肥能有效改良土壤,对土壤酸度和抗侵蚀能力产生积极作用。[方法] 以酸化红壤为研究对象,对比常规施肥(CK),化肥减量(30%)和秸秆还田(6 000 kg/hm2,FSM0),及化肥减量(30%)加上秸秆还田(6 000 kg/hm2)和配施不同梯度有机肥(1 500,3 000,4 500,6 000 kg/hm2)(FSM1、FSM2、FSM3、FSM4)对油菜生长各阶段土壤性质和产量的影响。[结果] 化肥减量配施秸秆和有机肥显著改善土壤酸度和养分状况(p＜0.05 ...
申梦雪 +9 more
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[Chemical diversity of dissolved organic matter revealed by ultra performance liquid chromatography-Fourier transform ion cyclotron resonance mass spectrometry]. [PDF]
Se Pu, 2023 Ma C, Ni HX, Qi YL.
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Shuitu Baochi Xuebao, 2018 为寻求酸性植烟土壤可持续改良方法，采用大田试验研究了石灰、石灰+绿肥在烤烟连作、烤烟与玉米轮作方式上对酸性植烟土壤物理特性、主要养分和酸度特征指标的影响，并分析了土壤pH与土壤理化指标的相关性。结果表明：在烤烟连作方式下，施用石灰并结合种植绿肥还田改良酸性土壤比单施石灰效果好，能使土壤容重、水解性酸、交换性酸、交换性氢和交换性铝分别降低11.97%，25.00%，18.46%，21.74%和16.67%，土壤孔隙度、有机质、碱解氮、有效磷、速效钾含量、pH、阳离子交换量 ...
李玉辉 +7 more
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Shuitu Baochi Xuebao, 2011 为探讨螯合诱导修复技术的作用机制,研究2种低分子有机酸即柠檬酸和苹果酸对土壤中重金属Pb各形态的影响。结果表明,对于人工模拟不同污染程度的PbⅠ～PbⅣ土壤,随着柠檬酸和苹果酸添加浓度的升高,土壤中最具活性的可交换态Pb百分含量均有不同程度的提高,从而达到了活化重金属Pb的目的;Pb活化效果随柠檬酸浓度升高而升高,随苹果酸浓度升高呈先上升后基本不变趋势,当有机酸浓度为10,20 mmol/kg时,苹果酸和柠檬酸活化Pb效果分别达到最优;二者相比,柠檬酸活化Pb效果优于苹果酸的活化效果。
钱翌, 刘莹, 彭晓丽
doaj
Shuitu Baochi Xuebao, 2016 为探究铁氧化物对土壤硝化动力学的影响,以全铁含量低的酸性潮土（pH 4.9）和中性潮土（pH 7.2）为研究对象，通过7 d的室内恒温（28 ℃）培养，研究了不同pH土壤在添加0%（对照），0.5%，1%，3%，5%，10%（重量比）铁氧化物后的硝化动力学过程。结果表明：铁氧化物加入量超过3%,则改变中性潮土的硝化动力学过程由一级变为零级模型。不同含量铁氧化物加入后，酸性潮土的硝化过程均符合一级动力学模型。加铁处理的酸性潮土，其净矿化速率均显著高于不加铁处理。加铁量为10%处理的净矿化速率为4.12 ...
赵永鹏 +5 more
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