Results 101 to 110 of about 846 (194)
Shuitu Baochi Xuebao目的团聚体是土壤肥力的重要指标，其稳定性直接影响土壤物理、化学和生物特性。在盐碱化条件下，团聚体受到土壤高盐分或强碱性的影响，易导致土壤结构退化和功能降低，严重限制农业生产。旨在总结盐碱土与非盐碱土团聚体的差异，分析盐碱化条件下影响团聚体形成和稳定性的因素。方法探讨改善盐碱土团聚体结构的方法与策略及非盐碱土团聚体研究对盐碱土的启示。结果综合分析发现，盐碱环境破坏土壤结构，降低微生物多样性和活性，导致大团聚体数量减少，微团聚体比例上升，团聚体稳定性较差。非盐碱土大团聚体和微团聚体数量均较高，且分布层次分明，
蔡婧晖 +5 more
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Shuitu Baochi Xuebao, 2019 为研究生物炭对豫西丘陵地区农田土壤团聚体分布、稳定性及其碳、氮在团聚体中分布的影响，进一步探明生物炭对丘陵区农田土壤结构和养分的长期作用效果。采用田间长期定位试验，生物炭用量为0（C0），20（C20），40（C40）t/hm2 3个处理，研究生物炭施用5年后对土壤团聚体组成及稳定性的影响，探究土壤团聚体中有机碳和全氮分布特性。结果表明：施加20，40 t/hm2生物炭可提高0-20，20-40 cm土层的机械性 > 0.5 mm以上粒级和水稳性 > 0.053 mm以上粒级团聚体含量。在0-20 ...
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[Recalling the history of the prevention and treatment during the epidemics of four infectious diseases, including botulism in Xinjiang]. [PDF]
Zhonghua Gan Zang Bing Za Zhi, 2023 Zhao FX, Lu XB, Fu WH, Dilixiati-Yakepu.
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[Determination of 26 herbicide residues in soil， sediment， and surface water samples using modified QuEChERS method combined with ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuZhao L, Ma L, Huang LQ, Chen JB, Zhu WF.
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[Preface for Special Issue on Advanced Molecular Imprinting Technology and its Cutting-Edge Applications]. [PDF]
Se PuJia Q, Yang KG.
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[Applications of molecularly imprinted solid-phase microextraction coupled with chromatography/mass spectrometry for determination of drug residues]. [PDF]
Se PuYan J +8 more
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