Results 21 to 30 of about 351 (134)
Research Progress on Global Food Traceability Based on Bibliometric Analysis [PDF]
Food traceability is an important means to ensure food quality and safety. For the purpose of providing a reference for future research on food traceability in China, a comprehensive bibliometric and visual analysis of papers concerning global food ...
ZHANG Qin, LIU Yujing, ZUO Chanyuan, ZOU Yan
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Experimental Study on Fluidity of High Moisture Lignite [PDF]
[Objecttives] The influence of moisture in raw coal, particle size and coal bunker material on the fluidity of raw coal was studied to find out the main reasons for coal clogging in raw coal bunkers.MethodsA raw coal flowability experimental device was ...
JI Enchang, SUN Baizhong, YANG Dong
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Shuitu Baochi Xuebao, 2020 为探讨生物质炭对红壤性水稻土中镉（Cd）元素吸附解吸特性的影响，采用一次平衡法研究添加生物质炭后Cd2+在红壤性水稻土中的吸附动力学、等温吸附和解吸过程。结果表明：施用CK （0 t/hm2）、A10（10 t/hm2）、A20（20 t/hm2）、A30（30 t/hm2）和A40（40 t/hm2）生物质炭后，红壤性水稻土对Cd2+的吸附过程是以化学吸附为主、非均匀的多表面吸附。施用CK （0 t/hm2）、A10（10 t/h2）、A20（20 t/hm2）、A30（30 t/hm2）和A40 ...
胡世民 +5 more
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Progress in preparation of activated carbon and its activation mechanism [PDF]
, 2014 对活性炭制备的水蒸汽活化法、CO2活化法、kOH活化法、znCl2活化法、H3PO4活化法和模板合成法的活化机理分别进行了探讨,总结了这几种活化法的优缺点,并对活性炭制备的研究现状及发展趋势进行了评述。In this paper,the activation mechanisms for steam activation,CO2 activation,KOH activation,ZnCl2 activation,H3PO4 activation and template synthesis are ...
刘运权, 叶跃元, 张本镔
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生物质炭和果胶对再生水灌溉下玉米生长及养分、重金属迁移的影响
Shuitu Baochi Xuebao, 2017 利用根箱试验方法比较了生物质炭和果胶对再生水灌溉下土壤—植物系统养分和重金属迁移特征的影响及差异性。结果表明，再生水灌溉不利于植物的生长，果胶和生物质炭两个处理相比，虽然植株生长无显著差异，但果胶处理植株的生长状况优于生物质炭处理；再生水灌溉时，果胶处理地上部生物量比对照增加了59.32%。与蒸馏水灌溉相比，再生水灌溉增加了根际土壤pH；灌溉水源相同时，果胶处理根际土壤pH略低于生物质炭处理。生物质炭和果胶都增加了土壤养分的含量，果胶对土壤碱解氮、有效磷和有机质的增加效果优于生物质炭 ...
刘 +5 more
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The Applicability Evaluation of Multisource Precipitation Data for Runoff Simulation in a Typical Basin on the Tianshan Mountains [PDF]
[Objective] To explore the differences in precipitation characteristics for multisource precipitation products and their applicability for runoff simulation in an alpine basin on the Tianshan Mountains.
FENG Tongfei +5 more
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Determination of Three Nitrophenol Compounds in Soil by Ultrasonic Extraction-High Performance Liquid Chromatography-Mass Spectrometry [PDF]
As important organic chemical raw materials, nitrophenol compounds have high toxicity and carcinogenicity, which can be transmitted into soil through air and water, causing pollution and endangering human health.
Aiqin LIU +7 more
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Shuitu Baochi Xuebao, 2018 分析了生物质炭添加对红壤性水稻土理化性状、重金属含量及微生物生物量的影响。通过田间小区长期定位试验，一次性施入不同量生物质炭（0，10，20，30，40 t/hm2），于2017年9月采集各处理表层土样（0—15 cm），研究土壤理化性状、重金属含量及微生物生物量的变化。结果表明：生物质炭添加对土壤理化性状、重金属含量及微生物生物量均有显著影响。与对照相比，供试土壤的pH、EC和有机质含量随生物质炭添加量的增加而增大，增幅分别为5.11%~18.43%，37.62%~104.31%和1.72%~22 ...
郭碧林 +6 more
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Shuitu Baochi Xuebao, 2023 研究生物炭和功能菌剂协同调控沙化土壤养分和微生物多样性与功能,可为沙化土壤肥力培育提供理论依据。选择毛乌素沙地典型生态经济林沙化土壤为研究对象,采用田间定位试验,运用高通量扩增测序技术,解析不同添加量(2%,4%,8%)生物炭处理及其配施定量功能菌剂(枯草芽孢杆菌+巨大芽孢杆菌+胶质芽孢杆菌)处理对土壤化学性质及细菌菌群多样性与功能的影响。结果表明:(1)与单一生物炭处理相比,生物炭+功能菌剂处理组土壤有效氮、磷养分含量分别提升44.71%和187.36%;(2 ...
王红萍 +6 more
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Shuitu Baochi Xuebao, 2019 采用室内培养试验，向土壤中添加小麦秸秆和不同量生物质炭，同时比较探究秸秆与生物质炭施用对土壤温室气体排放及微生物活性的影响差异。试验共设5个处理：土壤（S）、土壤+1%小麦秸秆（WT）、土壤+1%生物质炭（BC1）、土壤+2%生物质炭（BC2）和土壤+4%生物质炭（BC4）。在培养期内，施秸秆处理土壤CO2排放量比对照处理S显著增加约12.60%~2 005.63%，而施生物质炭处理降低约51.49%~97.93%。施秸秆处理的温室气体增温潜势（GWP）是对照处理S的1.12~19.24倍 ...
周际海 +6 more
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