, 2007 测定了三工河流域土壤的pH值和CaCO3含量,分析了二者的变化趋势。结合土壤CaCO3的淀积深度,根据年降水量与碳酸钙淀积深度之间的定量关系模型(y=305x+168.5)估算了全新世以来的气候变化。得出在该区域曾有过一段降水较为丰沛的时期。并依据土壤CaCO3含量在垂直剖面上的变化预测了该区域的气候条件是向暖湿、不利于碳酸盐保存的气候环境变化的。这与近期的研究资料得出的结论相一致 ...
赵成义 +4 more
core
[Recent advances on environmental occurrence， risk and analytical methodologies of synthetic phenolic antioxidants]. [PDF]
Se PuLiu SS +6 more
europepmc +1 more source
Shuitu Baochi Xuebao, 2007 黄土高原地区水资源缺乏，水资源，特别是土壤水资源的适度开发和合理利用势在必行。在黄土丘陵半干旱区的上黄生态试验站对多年生人工柠条林林冠截留，地表径流，土壤水分和植物生长等进行了定位观测，对林地土壤水分补给和消耗动态变化规律进行分析。结果表明，人工柠条林次降雨林冠截留随降水量增加而逐渐增加，地表径流与林外降雨量为直线关系。影响土壤水分补给的主要因素为天然降水，其次为林冠截留。土壤水分补给量与降雨量为线性关系；降水对土壤水分的影响程度随深度的增加而减弱，土壤水分最大入渗深度为170～270cm ...
doaj
[<i>Xuebijing</i> Injection ameliorates sepsis-associated acute respiratory distress syndrome in mice by upregulating phospholipid transfer protein to regulate macrophage JNK/c-JUN pathway]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoXu L +6 more
europepmc +1 more source
, 2016 利用陕西82个气象观测站的降水观测资料、NCEP/NCAR的2. 5°×2. 5°再分析资料以及MODIS卫星的气溶胶产品,分析了1960 — 2012年陕西雨季和全年的降水量、降水日数变化特征,并讨论了大气可降水量和气溶胶对降水的可能影响。结果表明,近60年陕西雨季、全年雨量和降雨日数均呈南多北少分布,年总雨量和降雨日数均呈下降趋势,雨季总雨量呈增加趋势,而降雨日数呈降低趋势,雨季雨强增加,降水向雨季集中;陕西全年和雨季小雨雨量和降雨日数均呈现下降趋势,雨季10
董妍[2] +5 more
core
[<i>Xiaoyao San</i> alleviates abnormal α‑syn aggregation and neuronal injury in a <i>Caenorhabditis</i> elegans model of Parkinson disease <i>via</i> the SKN-1 antioxidative pathway]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoYe L +5 more
europepmc +1 more source
[Expression patterns of fecal iron metabolism-related proteins in infants with food allergy]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiZhou ZB, Zhang J, Li ZL.
europepmc +1 more source
[The E3 ubiquitin ligase KLHL8 degrades HBx protein via the ubiquitin-proteasome pathway and inhibits HBV cccDNA transcription]. [PDF]
Zhonghua Gan Zang Bing Za ZhiLiu ZH +6 more
europepmc +1 more source
[Exploration of antiviral regimens for patients with chronic hepatitis B virus infection in the indeterminate phase]. [PDF]
Zhonghua Gan Zang Bing Za ZhiZheng J +8 more
europepmc +1 more source
[Selenium-containing polyurethane-modified titanium modulates osteogenic differentiation of mesenchymal stem cells and M2 polarization of macrophages]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZhai M, Bai X, Fu Y, Xu H, Zhou Y, Lv L.
europepmc +1 more source