Results 101 to 110 of about 803 (154)

[Progress in preparation of plant biomass-derived biochar and application in pesticide residues field]. [PDF]

Se Pu, 2022
Zhang X, Zhen D, Liu F, Peng Q, Wang Z.
europepmc   +1 more source

The Nitrogen Enrichment of Eroded Sediment and Its Models

, 1999
本文综述了有关侵蚀泥沙氮素富集及模型研究方面的成果。通过对比分析，提出了进一步研究设想 ...
张兴昌
core  

[Matrix solid-phase dispersion extraction of organophosphorus flame retardants in soil based on response surface methodology]. [PDF]

Se Pu
Wang J, Xu S, Sun Y, Lei H, Cheng Y, Wang X, Zhang Z.   +6 more
europepmc   +1 more source

[Determination of sixteen antibiotics and four β-agonists in human urine samples using ultra-performance liquid chromatography-tandem mass spectrometry based on high-throughput automatic solid-phase extraction]. [PDF]

Se Pu, 2023
Li ZH, Hu XJ, Lu YF, Xie LN, Zhu Y.
europepmc   +1 more source

Effects of Planting Pattern on N Loss by Runoff in Purple Soil Agro-watersheds

, 2005
种植模式变化是农业非点源污染流域治理最佳管理措施的主要内容之一,以紫色土区徐家湾和桑树土典型农业小流域为例,初步探讨了套种和单作模式下自然降雨侵蚀过程次降雨土壤氮素的流失特征。结果表明,土壤硝态氮流失表现为套种与单作模式下的差异不显著,而铵态氮的流失受流域种植模式变化的影响强烈,套种模式下的平均流失浓度(0.453mg/L)明显大于单种模式下的(0.169mg/L)。套种模式应与流域土壤 ...
李占斌, 韩建刚
core  

[Determination of 51 per- and polyfluoroalkyl substances in raw water and drinking water by online solid-phase extraction coupled with ultra performance liquid chromatography- tandem mass spectrometry]. [PDF]

Se Pu
Chen YY, Lyu J, Ye BX, Zhang L, Wang YY, Jin N.   +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

生物炭对土壤中氮磷有效性影响的研究进展

, 2016
利用生物炭在贫瘠的土壤上培育出肥沃的"黑土"正成为土壤学家研究的热点.氮、磷等大量养分是衡量土壤肥力高低的重要指标,生物炭对其有效性影响表现出极大的复杂性.不同研究得出的结论不尽相同,关键是缺乏对其机制的深入研究.由于氮和磷的不合理利用还可能造成非点源污染而带来环境风险,再加之生物炭施用的不可逆性,必须确保生物炭在任何情况下都不会对土壤和环境带来不利的影响.为此,本文综述了生物炭添加对氮肥和磷肥在土壤-植物系统迁移转化过程中的作用,重点讨论了不同生物炭处理方式对土壤磷素吸附解吸和形态转化的影响 ...
张友, 徐刚, 武玉, 秦松, 邵宏波   +4 more
core   +1 more source

[Serum levels of polycyclic aromatic hydrocarbons and health risk assessment among children and adolescents]. [PDF]

Se Pu
Wang LP, Deng ZY, Shi SY, Wang HW, Liu K, Li X, Zhang MY, Mei SR.   +7 more
europepmc   +1 more source