Shuitu Baochi Xuebao, 2008 研究了喀斯特森林随降水流动的主要元素动态。结果表明:随降水流动的NO3-,NH4 ,K ,Ca2 ,Mg2 ,SO42-,Cl-,Na 浓度,在林隙、林内、树干茎流和溪流水中的月动态以夏季较低、冬季较高。沿着"大气→森林→集水区溪流水"的流动轨迹,部分离子浓度呈"富集"或"扩散"状态。按其空间分布式样可划分为:持续富集型,包括Ca2 和Mg2 ;地表富集型,包括K ,Na ,Cl-,NO3-和NH4 ;其它型,包括SO24-。黔中喀斯特山地每年随降水输入森林-土壤系统的N量为9.479~12.692 ...
许效天, 李广宇, 张喜, 宁伟伟
doaj
[Effect of modified hot-etching treatment on the mechanical properties of zirconia and zirconia/resin bond strength]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanYang X, Wu Y, Lv P.
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Shuitu Baochi Xuebao目的为明确不同林龄樟子松水源涵养功能的差异。方法基于2023—2024年野外定位观测试验获得的穿透雨量、树干径流量、土壤体积含水率和枯落物质量含水率，量化不同林龄（10、15、20 a）樟子松的水源涵养功能差异。结果随着林龄增长，冠层结构发育显著改变降水分配格局，穿透雨和树干径流占比相对降雨量降低，而冠层截留能力持续增强，反映成熟冠层对降雨再分配的关键作用，10、15、20 a林龄冠层截留量分别占降雨量17.7%、29.4%和35.4%。林下枯落物层的发育呈显著年龄效应 ...
王志豪 +3 more
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[Preparation of Lip-TTO-PHMB and evaluation of its <i>in vitro</i> antibacterial activity and biocompatibility]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiCui LF, Jin J, Wu HW.
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[Bioactivity of multi-matrix bioceramic root canal sealer: An <i>in vitro</i> study]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLyu W, Bai W, Wang X, Leung Y.
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[Research advances on the application of artificial intelligence in the warning and management of burn-related delirium]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiWang G, Qian HY, Yue XM.
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[Micro-solid phase extraction based on post-modified chloro-functionalized two-dimensional covalent organic frameworks for the enrichment of organochlorine pesticides]. [PDF]
Se PuZhao HL +5 more
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[<b>Gag<sup>p17</sup> protein KSKK</b>→<b>KSQQ substitution and ΔKSKK deletion mutations promote HIV-1 release and Gag<sup>p17</sup> maturation in HIV-1 CRF55_01B and CRF59_01B strains</b>]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhou Z +6 more
europepmc +1 more source
[Research progress of microfluidic technology in competitive sports]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiHu C, Zhang C, Fan Z, Deng X, Liu M.
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[Aerobic exercise improves metabolic disorders and multi-organ damage in diabetic rats by activating the Sirt1/Creb1/Ppargc1a axis]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhang G, Li X, Mi Y, Tian D, Meng J.
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