Results 31 to 40 of about 12,025 (172)
The Long-term Variations and Influencing Factors of Soil Saturated Hydraulic Conductivity in Terraces on the Loess Plateau [PDF]
[Objective] The long-term variations of soil saturated hydraulic conductivity (Ks) and its primary controlling factors in terraces on the Loess Plateau were explored. [Methods] Terraces were selected for three land use types, i.e.
CHANG Heng +6 more
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Rare Metals, EarlyView.ABSTRACT Developing low‐energy‐input electrocatalytic systems for efficient hydrogen production is crucial for advancing sustainable energy technologies. The overall hydrazine splitting (OHzS) has emerged as a promising strategy to reduce the overall energy consumption by replacing the sluggish oxygen evolution reaction.
Haozhou Chen +13 more
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Content and distribution of unprotected soil organic carbon in natural and monoculture plantation forests of Castanopsis kawakamii in subtropical China [PDF]
, 2004 通过对福建三明格氏栲天然林及在其采伐迹地上营造的 33年生格氏栲人工林和杉木人工林土壤非保护性有机 C含量及分配的研究 ,结果表明 ,格氏栲天然林 0～ 10 0 cm土层内土壤有机 C贮量分别是格氏栲人工林和杉木人工林的 1.17倍和1.35倍 ,轻组有机 C贮量分别是后两者的 1.6 4倍和 2 .16倍 ,而颗粒有机 C贮量则分别是后两者的 1.6 0倍和 3.4 3倍 ,其土壤轻组有机 C和颗粒有机 C的分配比例亦显著高于后两者。不同林分间差异均以 0～ 10 cm土层为最大 ...
刘艳丽(福建农林大学林学院) +5 more
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Mechanical Properties of Gangue-steel Slag-ore Powder Mixture [PDF]
In order to explore the mechanical properties of the coal gangue-steel slag-ore powder mixture without alkali initiator, the solid waste materials coal gangue, steel slag and mineral powder produced in Handan Area were taken as the research objects, and ...
Hanlong CUI +4 more
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Rare Metals, EarlyView.ABSTRACT Fluxgate sensors with Co‐rich amorphous microwires, widely used for their low noise in magnetic field measurements, encounter significant challenges in high‐temperature environments such as well drilling and geological exploration. Prolonged thermal aging degrades the performance of Co‐rich amorphous microwires, resulting in increased noise ...
Lining Pan +10 more
wiley +1 more source
Shuitu Baochi Xuebao, 2002 通过对纸坊沟流域植被恢复后10种植物群落下土壤水稳性团聚体的研究发现，植被恢复对土壤水稳性团聚体有明显影响，其中草本影响作用最大。土壤水稳性团聚体与土壤有机质呈正相关，与全氮呈负相关。土壤稳定入渗速率与土壤水稳性团聚体呈正相关。
王国梁 刘国彬
doaj
Rare Metals, EarlyView.ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang +11 more
wiley +1 more source
Shuitu Baochi Xuebao, 2016 为探讨祁连山东段不同高寒灌丛草地的土壤抗蚀性特征，采用野外调查和室内试验的方式，对东祁连山金露梅、柳、杜鹃3类高寒灌丛草地的土壤抗蚀性特征及其影响因素进行了研究。结果表明：不同灌丛草地土壤水稳性团聚体主要以＞0.5 mm的大粒径水稳性团聚体为主，土壤团聚结构破坏率表现为：柳灌丛草地＞杜鹃灌丛草地＞金露梅灌丛草地；土壤水稳性指数依次为：杜鹃灌丛草地（97.1%）＞柳灌丛草地（96.9%）＞金露梅灌丛草地（95.8%）；土壤抗蚀指数表现为：杜鹃灌丛草地最大（95.0%），金露梅灌丛草地最小（92.9 ...
赵锦梅 +4 more
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Shuitu Baochi Xuebao, 2022 为探索施用有机肥对咸水灌溉农田耕层土壤水稳性团聚体的调控效应,在麦玉两熟制农田咸水灌溉(1,2,4,6 g/L)配施有机肥(OF)和未施有机肥(NOF)长期定位试验的基础上,研究了2018-2019年不同处理对农田耕层0-20 cm土壤盐度(EC1:5)、土壤有机质(SOM)含量和水稳性团聚体稳定性的影响。结果表明:咸水灌溉有增加耕层土壤盐度,降低SOM含量和水稳性团聚体稳定性的趋势,随灌溉水矿化度的升高,SOM含量、>0.25 mm水稳性大团聚体质量分数(WR0.25)、团聚体平均重量直径(MWD ...
王艺乔 +7 more
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Wet-towing coupled dynamic response of three-bucket jacket foundation of offshore wind power [PDF]
ObjectiveTo improve the safety of wet-towing transportation for offshore wind power multi-bucket jacket foundations, it is necessary to explore the stability and dynamic response during the wet-towing transportation.MethodsA hydrodynamic model was ...
Disheng LIANG, Puyang ZHANG, Xiling QI
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