Results 1 to 10 of about 680 (110)

湘中丘陵区4个树种人工纯林土壤-微生物-胞外酶C∶N∶P化学计量特征

Shuitu Baochi Xuebao
目的不同树种人工林因养分吸收利用策略的差异，导致土壤碳(C)、氮(N)、磷(P)质量分数及其化学计量比的改变显著影响土壤微生物活性，土壤微生物是否通过调整自身生物量和胞外酶化学计量比适应土壤的变化仍不明确。为探究不同树种人工林对土壤微生物生物量和胞外酶活性的影响，研究土壤-微生物-胞外酶C∶N∶P化学计量比之间的协变性。方法以湘中丘陵区土壤发育、经营历史一致，不同生活型的4个树种[针叶树马尾松(Pinus massoniana)、落叶阔叶树枫香(Liquidaar formosana)、常绿阔叶树木荷 ...
卢巧露, 方晰, 范世才, 孙龙, 孙百慧, 梁婷婷, 李毅   +6 more
doaj  

[Research progress on cellular senescence and liver diseases]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Zhang LT, Hu JM, Wang JW, Li H, Qin YJ.
europepmc   +1 more source

北方农牧交错带(武川县)土壤微生物数量分布及层化比率研究

Shuitu Baochi Xuebao, 2006
采用田间采样及室内培养方法，对内蒙古武川县耕地、退耕还灌地和放牧草原3种类型土地土壤微生物各类群的数量分布和层化比率进行了研究。结果表明：在土壤耕作层（0～30cm）土壤微生物数量呈逐层下降趋势，3种类型土地的土壤微生物总数相差不大，3种类型土地土壤微生物层化比率存在明显差异。同时提出了土壤微生物层化比率的概念，并认为土壤微生物层化比率可能是一个比较好的指示动态土壤质量（土壤演替方向）的指标，当一个区域土壤微生物层化比率大于2时，土地一般不会发生退化现象。在研究的3块实验区域中，耕地存在较高的退化风险 ...
doaj  

[Research progress on poor response, resistance mechanisms, and influencing factors of immunotherapy for hepatocellular carcinoma]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Huang M, Zhang FN, Gong H, Liu CC, Zhao TT, He N.   +5 more
europepmc   +1 more source

[Determination of 14 aniline and benzidine compounds in soil by gas chromatography-mass spectrometry]. [PDF]

Se Pu, 2023
Wu L, Yang L, Hu E, Wang M, Yang C, Yin M.   +5 more
europepmc   +1 more source

[Research progress on paper-based microfluidic chips in pathogen detection]. [PDF]

Se Pu
Liu XT, Shi J, Shi M.
europepmc   +1 more source

[New pretreatment method for detecting petroleum hydrocarbons in soil: silica-gel dehydration and cyclohexane extraction]. [PDF]

Se Pu, 2023
Qu J, Ni YW, Yu HR, Tian HX, Wang LX, Chen JP.   +5 more
europepmc   +1 more source

[Research progress in material preparation and application of magnetism-enhanced in-tube solid-phase microextraction]. [PDF]

Se Pu
Luo YN, Chen J, Hu YY, Gao SJ, Wang YL, Liu YM, Feng JJ, Sun M.   +7 more
europepmc   +1 more source

[Toxicity of lunar dust simulant exposure via the digestive system: Microbiota dysbiosis and multi-organ injury]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Chen Y, Liu Y, He S, Gong X, Cheng Q, Chen Y, Hu X, Wang Z, Xie H.   +8 more
europepmc   +1 more source

[Determination of seven tire antioxidants and their quinone oxidation products in fine particulate matter by high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Liu F, Tang BB, Wu LY, Song LX, Zhang M, He M.   +5 more
europepmc   +1 more source