, 2016 降雨条件下坡面土壤养分伴随水土流失而流出田块，不仅降低土壤肥力，而且引起水环境污染。从坡面养分 迁移机理、数学模型模拟、控制措施3 个方面对国内外学者在坡面养分随地表径流迁移过程的研究进展进行回顾。 坡面养分迁移机理研究主要包括降雨特征、土壤特性、坡面特征、化学物质特征、耕作与施肥方式、地表覆盖及管理 控制措施等因子对坡面养分迁移的影响作用。数学模型主要包括经验模型、基于物理过程的理论模型。物理基础 模型基本上是在假设养分传递内在机制基础上建立的，包括混合层理论、对流扩散作用、雨滴击溅作用、水流冲刷 ...
刘艳丽 +4 more
core
[Expert consensus on monoclonal antibody immunoprophylaxis against respiratory syncytial virus in infants and young children in tropical and subtropical regions of China]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiSubspecialty Group of Neonatology +4 more
europepmc +1 more source
, 2006 高山融雪是塔里木河源流区重要的产流方式,4个山区流域具有面积大、测站稀少、降雨与融雪混合补给径流和显著局部降雨等特征.以开都河流域为研究区,分析流域特征对SRM融雪径流模型参变量的影响,确定相应选取策略以提高融雪径流模拟预报精度,为相似流域融雪径流模拟提供参考.研究结果表明:(i)气温输入控制模拟径流的整体趋势,对模拟精度起决定性作用.但测站日均气温数据通常不能代表流域同高程的平均水平,直接作为输入会导致很大误差.基于遥感积雪图和模拟结果分析,开都河流域选择0 ...
包安明 +5 more
core
[Aging-Associated Oral Microbiota Dysbiosis and Hypofunction: Their Role in Alzheimer's Disease Pathogenesis]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLi Y, Chen Y, Chen S, Huang X.
europepmc +1 more source
[Clinical treatment controversies and progress in liver cirrhosis: an evidence-based medicine perspective from managing portal hypertension to preventing complications]. [PDF]
Zhonghua Gan Zang Bing Za ZhiYang YF, Wang JJ, Chen GW, Ge QC, Lu LG.
europepmc +1 more source
Shuitu Baochi Xuebao目的研究不同重现期暴雨的降雨侵蚀力精确估算及其时空格局，对极端降雨频发背景下流域土壤侵蚀防治和暴雨洪涝灾害防控具有重要意义。方法基于延河流域39个雨量站1965—1990年、2006—2020年次降雨和输沙数据，使用广义极值分布（GEV）模型拟合延河流域次降雨重现期的分布和统计不同重现期暴雨的峰值降雨特征，提出一种新的基于不同重现期暴雨峰值降雨强度Ipeak乘以场次降雨量P的降雨侵蚀力计算方法，并对延河流域不同重现期暴雨及降雨侵蚀力进行时空分析。结果1）剖析1965—1990年、2006 ...
高晓玉 +5 more
doaj
[Association between Tau protein deposition and brain metabolites: N-acetylaspartate and creatine as potential biomarkers for advanced Alzheimer's disease]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoLi X +7 more
europepmc +1 more source
[The miR-30b/USP14 axis regulates mitophagy via a non-PINK1/Parkin pathway in neuronal oxygen-glucose deprivation/reoxygenation injury]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiBei YH, Yu K, Wang X.
europepmc +1 more source
[A case of isolated myeloid sarcoma initially presenting as a mediastinal mass]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiYang JH +8 more
europepmc +1 more source
[Temporal changes of chronic postsurgical pain in mice: the regulatory role of CX3CL1 in the dorsal root ganglion]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhao B +8 more
europepmc +1 more source