Results 121 to 130 of about 445 (134)

冻融循环对黄土区土壤饱和导水率影响的试验研究

, 2015
为探明黄土高原北部冻融过程对土壤饱和导水率的影响，采用冻融循环模拟的方法，分析了不同土地利用和不同 土层深度下冻融循环前后土壤饱和导水率（Ks）的变化特征。结果表明：冻融过程对 Ks有显著影响，经 15 次冻融循环后，Ks 总体上呈减小趋势，其影响程度因土地利用类型和土层深度不同而异。冻融循环后 4 种土地利用 0 ~ 10 cm 土层 Ks均显著 下降，柠条林地下降幅度最大，其次为农地、苜蓿地和撂荒地，这与土壤的松散程度有关。除撂荒地外，冻融循环过程对其它 3 种土地利用 10 ~ 20 和 20 ~
贾小旭, 赵春雷
core  

[Design and practice of undergraduate instrumental analysis experiment： analysis of polycyclic aromatic hydrocarbons in environmental water by solid-phase microextraction- liquid chromatography]. [PDF]

Se Pu
Liu J, Wu JY, Li JT, Chen NW, Huang XJ.
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

[Effect of benzo(a)pyrene on dopaminergic neurons and α-synuclein in brain and its mechanism involved]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban, 2020
Qi YZ, Quan HH, Xu WX, Li QR, Zhou H.
europepmc   +1 more source

宁夏黄土区平茬对退化沙棘林土壤水分的影响

Shuitu Baochi Xuebao
目的为解决退化沙棘林平茬与土壤水分关系不清的问题，系统研究平茬对退化沙棘林土壤水分的影响，以期为宁夏黄土区沙棘林平茬复壮提供理论和技术上的支撑。方法设置平茬（高度≤30 cm）、不平茬2个处理，每个处理4个重复，采用随机区组设计进行排列。结果1）平茬处理表层（0~20 cm）土壤水分体积分数较未平茬处理显著增加4.10%~70.01%；平茬处理浅层（20~80 cm）土壤水分体积分数较未平茬处理显著增加8.99%~11.12%；平茬处理中层（80~180 cm）土壤水分体积分数较未平茬处理显著增加14 ...
李振明, 董立国, 安钰, 万海霞, 韩新生, 何钰, 王月玲, 郭永忠, 韩懂懂, 许浩, 郑纪勇, 蔡进军   +11 more
doaj  

[New Advances in the Application of Bacterial Cellulose Composite Materials in the Field of Bone Tissue Engineering]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Luo C, Zhang L, Ran L, You X, Huang S.
europepmc   +1 more source

[Occurrence characterization of fluorinated liquid crystal monomers in indoor dust and human health exposure risks]. [PDF]

Se Pu
Wang SY, Hua K, He JH, Gao K, Lu LP.
europepmc   +1 more source

A Study of Soil Water Characteristic Curves on Tea Plantations under Different Soil Conservation Practices [PDF]

, 2014
Chan-Tai Tu, Li-Ling Lin, Yi-Te Tu, Yi-Zhih Tsai, 杜怡德, 林俐玲, 涂展臺, 蔡義誌   +7 more
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Effect of Gravel Content on Saturated Hydraulic Conductivity in Soil Column [PDF]

, 2014
Li-Ling Lin, Well-Ching You, Yi-Zhih Tsai, 林俐玲, 游韋菁, 蔡義誌   +5 more
core  

[Establishing the nude mice bone metastasis model of lung adenocarcinoma and applying MicroCT into the observation]. [PDF]

Zhongguo Fei Ai Za Zhi, 2013
Cui Y, Geng Q, Gu A, Zhu M, Kong H, Sun L, Liu L, Yan M, Yao M.   +8 more
europepmc   +1 more source