Results 121 to 130 of about 13,490 (164)

Evolution of soil anti-erodiblity of Robinia pseudoacacia L. plantation at different ages in Hilly-gully region of Loess Plateau

, 2010
采取时空互代法,以黄土丘陵区不同林龄的人工刺槐林为研究对象,选取坡耕地为对照,分析土壤抗蚀性的变化过程,并在此基础上提出土壤抗蚀指数。结果表明,黄土丘陵区坡耕地种植刺槐林后:>0.25 mm土壤水稳性团聚体、>0.5 mm土壤水稳性团聚体、平均质量直径、有机碳含量较坡耕地显著增加,并随林龄增加逐渐升高;土壤团聚状况、团聚度显著高于坡耕地并随林龄增加先降低后升高;土壤结构破坏率、分散系数和分散率呈波动式降低;小粒径的微团聚体和机械组成逐步向大粒径转变。相关性分析表明:>0.25 ...
余娜, 刘国彬, 张超, 薛萐
core  

[Association of Serum Sodium and Potassium Levels With the Risk of Depressive Symptoms During the Second Trimester of Pregnancy : A Cross-Sectional Study]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Cai J, Dong T, Yu C.
europepmc   +1 more source

[Zeta-focal bone lengthening for bone defects after fracture-related infection: a two-case based research]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Aihemaitijiang Y, Yiliyaer W, Xiayimaierdan M, Maimaiaili Y, Abulaiti A, Xu Y.   +5 more
europepmc   +1 more source

[Preparation of a novel polyhydroxy silica stationary phase and application in the separation of alginate oligosaccharides]. [PDF]

Se Pu
Jiao RW, Zhang DD, Hu XY, Zhu WT, Li X, Cai YD, Ren DD, Wang QK, Wu L, Zhou H.   +9 more
europepmc   +1 more source

[Novel clinical insights and frontier issues in alpha- fetoprotein-producing gastric cancer]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Luo B, Liu H, Xie W, Gong W.
europepmc   +1 more source

[Effect of preoperative lower-limb muscle strength on perioperative blood loss and early outcomes in total knee arthroplasty]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li H, Zhu K, Zhang H, Wang J, Wang B, Nie Y, Shen B.   +6 more
europepmc   +1 more source

[Determination of 65 synthetic cannabinoids in whole blood by QuEChERS-ultra performance liquid chromatography- mass spectrometry]. [PDF]

Se Pu
Xi Z, Ye Y, Li SP, Kang J, Liu WQ, Zhang J, Li DX.   +6 more
europepmc   +1 more source

[Liver-bone axis: novel mechanisms and strategies for MAFLD regulation]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Wang YW, Yan XZ, You H, Yang AT.
europepmc   +1 more source

[Advances in application of hydrogels for treatment of osteonecrosis of the femoral head]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Han G, Li Q, Wang Q, Kang P.
europepmc   +1 more source

[Differential analysis of gut microbiome in patients with periprosthetic joint infection, aseptic failure, and osteoarthritis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Muzhabaier K, Li Y, Wang F, Guo X, Chen Q, Zhang X, Cao L.   +6 more
europepmc   +1 more source