Results 51 to 60 of about 386 (91)

深松和秸秆覆盖条件下紫色土坡耕地水分养分流失特征

Shuitu Baochi Xuebao, 2018
旨在明确深松和秸秆覆盖2种措施在紫色土坡耕地中的水分养分流失特征规律，利用径流小区，结合平作、垄作、深松、完整秸秆覆盖和粉碎秸秆覆盖措施共设置9个试验处理，开展了2年的田间试验，对产量、地表径流、壤中流以及径流中的养分流失进行了测定。结果表明：（1）与平作相比，深松可显著增加壤中流量和壤中流中的总氮浓度，增加39.6%的总径流，以及85%的总氮量流失，同时还会降低玉米产量。（2）秸秆覆盖降低地表径流，增加壤中流量和壤中流中的总氮浓度，总径流增加6.4%，总氮量流失增加9.4%，秸秆覆盖对产量无显著影响。（
刘海涛, 姚莉, 朱永群, 王宏, 许文志, 王谢, 林超文   +6 more
doaj  

[Determination of polychlorinated naphthalenes in soil using accelerated solvent extraction-molecular sieves solid-phase extraction coupled with gas chromatography-tandem mass spectrometry]. [PDF]

Se Pu, 2022
Jin J, Liu H, Xue H, Yang J, Qu C, Ma H, Chen J.   +6 more
europepmc   +1 more source

三峡库区高砾石含量紫色土优先流形态特征

Shuitu Baochi Xuebao, 2017
以三峡库区王家桥小流域林地、耕地和园地为研究对象，结合染色示踪技术，利用图像处理软件技术，通过计算优先流形态特征参数，分析3种土地利用类型下高砾石含量紫色土的优先流形态发育特征。结果表明：砾石平均含量表现为园地＞林地＞耕地，土壤大孔隙平均半径随着深度的增加而减小。林地优先流运动深度可达60 cm，剖面染色区域呈现明显的不规则性，耕地染色深度集中在0—15 cm土层，染色区域分布均匀，但染色面积小，且存在大量的侧向流，园地染色范围广，优先路径连通性好。染色路径数表现为园地＞林地＞耕地 ...
戴翠婷, 刘窑军, 王天巍, 李朝霞, 谭学艺   +4 more
doaj  

[Determination of eight ultraviolet absorbers in surface water and wastewater by ultra performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]

Se Pu
Sun HJ, Zhang BB, Huang MQ, Wang H, Hu GJ, Chen HM.   +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

[Low-oxygen-affinity hemoglobinopathy Hemoglobin Sunshine Seth: a case report and literature review]. [PDF]

Zhonghua Xue Ye Xue Za Zhi, 2023
Chang L, Wang CY, Li ZH, Zhou DB, Cao XX.   +4 more
europepmc   +1 more source

[Layered double hydroxide-loaded si-NEAT1 regulates paclitaxel resistance and tumor-associated macrophage polarization in breast cancer by targeting miR-133b/PD-L1]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhang Z, Wu Q, Xie M, Ye R, Geng C, Shi J, Yang Q, Wang W, Shi Y.   +8 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

[Molecularly imprinted polymers： novel green preparation methods and cutting-edge applications review]. [PDF]

Se Pu
Li F, Jia B, Hu Q, He X, Chen L, Zhang Y.   +5 more
europepmc   +1 more source

[Determination of 12 typical personal care products in human urine samples by ultra performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu, 2023
Han LX, Zhang X, Hu XJ, Zhang HJ, Qiu T, Lin X, Zhu Y.   +6 more
europepmc   +1 more source