季节性冻融对盐荒地水盐运移的影响及调控/Effects of seasonal freeze thawing on water and salt movement in saline lands[J]
, 2013 季节性冻融是干旱区土壤盐碱化形成的主要驱动因子,但冻融过程中土壤水盐耦合关系及热量调控机理仍不清楚.通过分析2009年11月～2010年5月新疆玛纳斯河流域典型盐荒地季节性冻融过程中土壤剖面160 cm以内的水分、盐分和温度动态变化,探讨了不同土层冻融过程中水热盐的耦合关系.结果表明:土壤最大冻结深度为150 cm左右,表土层(0～40 cm)温度与气温关系密切;土壤剖面水分呈现“C”型垂直分布,表土层和底土层(100～160 cm)含水量较大,而心土层(40～100 cm)含水量不足10 ...
Asfa Batool +8 more
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[Preparation of a novel polyhydroxy silica stationary phase and application in the separation of alginate oligosaccharides]. [PDF]
Se PuJiao RW +9 more
europepmc +1 more source
, 2009 本发明公开了一片状铌酸盐粉体的熔盐法制备方法，以碱土金属硝酸盐，氯化物或碳酸盐为原料，以KCl、NaCl、或者K2SO4或者摩尔比为1∶1的KCl和NaCl混合盐为助熔剂。利用高温反应得到尺寸和形貌可控的粉体。然后经过洗涤、抽滤和干燥得到最终所需的粉体。由于制备过程不引入其他离子，所制备的粉体纯度高，可作为各领域通用的粉体，如可以作为分散性好的高纯粉体，也可以用作模板粒子制备高性能陶瓷材料。本发明流程少，工艺简单，对设备要求低，原料价格低廉，成本低 ...
李 勇 +8 more
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[Research progress in mechanisms of dietary resistant starch for regulating glucose and lipid metabolism]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoLiu K, Li X, Zhang Y, Sun J, Liao W.
europepmc +1 more source
, 2005 本文是地下水位3~5m、壤土质地条件下盐碱地长期生物改良田间试验的结果,结果表明:种植耐盐冬小麦套播草木樨是最好的脱盐方式,经过1年, 1m土层平均盐分由1 989%降到0 282%,脱盐率达85 82%;种植耐盐牧草套播草木樨、苜蓿是比较好的脱盐方式:经过3年, 1m土层平均盐分由1 34%降到0 524%,脱盐率60 90%;密植枸杞4年后, 1m土层平均盐分由2 363%降到0 800%,脱盐率为66 14%,适应于盐分特别高的土壤改良;施有机肥种植作物(植物)灌溉,是完善的改良盐碱地方法,一方面,
罗廷彬,任崴,李彦,苏风春,王宝军
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[Preparation of superhydrophilic imprinted resin-graphene aerogel composite and its precise recognition of tumor biomarker in urine]. [PDF]
Se PuWang M, Tian T, Bai L, Han D, Yan H.
europepmc +1 more source
[Deep eutectic solvent and improved needle filter-based liquid-membrane microextraction combined with high performance liquid chromatography for the determination of sulfonamide and fluoroquinolone residues in milk]. [PDF]
Se PuXu RM +5 more
europepmc +1 more source
[Determination of six whitening ingredients in cosmetics by ultra performance liquid chromatography coupled with photodiode array detector and corona charged aerosol detector]. [PDF]
Se PuLi X +8 more
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[In vitro and in vivo antibacterial effects of the mitochondrial antioxidant Visomitin against <i>Enterococcus</i>]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanYang Q, Wu Y, Wu R, She P.
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[Gout of the manubriosternal joints: A case report]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanGan D, Fu Q, Tang X, Li C, Shu Z.
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