Results 111 to 120 of about 4,303 (162)

[Research progress on enhanced recovery after posterior cruciate ligament reconstruction]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Shi Z   +7 more
europepmc   +1 more source

北京山区不同植被恢复类型土壤质量综合评价

open access: yesShuitu Baochi Xuebao
[目的] 综合评价北京山区不同植被恢复类型土壤质量,并进一步确定影响土壤质量的关键因素,为该地区植被恢复与重建提供数据支撑。[方法] 以立地条件相近的侧柏纯林、油松纯林、侧柏油松混交林、侧柏针阔混交林、油松针阔混交林、落叶阔叶混交林和无林地(对照)为研究对象,测定14个土壤理化指标作为土壤质量评价的总数据集(TDS),采用主成分分析法(PCA)和Pearson相关性分析建立土壤质量最小数据集(MDS),利用线性(L)和非线性(NL)2种评分方法计算土壤质量指数(SQI)和一般线性模型(GLM ...
李鹏   +10 more
doaj  

[Advances in liver transplantation technology]. [PDF]

open access: yesZhonghua Gan Zang Bing Za Zhi
Zhu ZJ.
europepmc   +1 more source

[Research progress in repair of post-epicanthoplasty deformity]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ren B, Chen W.
europepmc   +1 more source

苏打盐碱退化湿地淹水恢复对植物-土壤系统有机碳储量的影响

open access: yesShuitu Baochi Xuebao
目的为探索苏打盐碱退化湿地淹水恢复后植物-土壤系统有机碳储量的变化规律。方法选择松嫩平原西部盐碱区域典型沼泽湿地退化多年地块(碱斑地、羊草地)和经淹水恢复的芦苇沼泽地为研究样地,基于样地植被地上-地下生物量、地下1 m土壤剖面理化性质指标的测定,分析探讨退化盐碱湿地恢复过程中土壤有机碳(soil organic carbon, SOC)质量分数及储量的变化规律及影响因子。结果恢复后芦苇湿地植被生物量为7 807.78 g/m2,碳库为1.90 kg/m2,较羊草地分别增加383.15%和216.67 ...
冯伟辉   +4 more
doaj  

[Repair and reconstruction of facial organ injuries: a perfect fit of structure and function]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Song BQ, Pei JM.
europepmc   +1 more source

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