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162篇 您的检索式:作者名="KEREN R"
    题名 作者 年代 出处 被引量
1降雨过程中碱性坡耕地土壤侵蚀的研究显示文摘坡地土壤侵蚀的治理是水土保持工作的主要任务之一。为了研究碱性坡耕地土壤在降雨过程中的入渗和侵蚀特性 ,该试验采用室内人工降雨模拟器方法对两种不同碱度的壤质黄土在不同坡度条件下的入渗和侵蚀进行了调查。试验土壤的可交换钠百分比 (ESP) 分别为 2 .8和 5 2 .0 ,土壤表面坡度为 5 %~ 2 5 %。试验数据显示 ,在降雨过程中 ,土壤的入渗能力随 ESP的减小或表面坡度的增大而增加 ,土壤的可侵蚀性随土壤 ESP或表面坡度的增大而增加。两种 ESP的土壤在各种表面坡度情况下的土壤累积侵蚀量随累积降雨量直线增加 ,并随土壤坡度的增大而增加。但当土壤坡度大于 15 %时 ,高ESP土壤的累积侵蚀量随土壤坡度的增加远大于低 ESP土壤的增加。U SL E经验公式较好地预测了低 ESP土壤的坡度系数 ,但不能精确计算高 ESP土壤的坡度系数。由于土壤细沟侵蚀的发生 ,WEPP模型低估了两种 ESP土壤在大坡度情况下的坡度系数。李法虎 Keren R Benhur M 2003农业工程学报2003,19,2:8
2Polymer effects on water infiltra-tion and soil aggregation显示文摘Ben-Hur M Keren R 1997Soil Science Society of A-merica Journal1997,61,2:1
3Cadherin switch in tumor progression显示文摘Hazan RB Qiao R Keren R 2004Ann N Y Acad Sci2004,1014,:1
4ICD-9 codes for identifyinginfluenza hospitalizations in children显示文摘Keren R Wheeler A Coffin SE 2006Emerg Infect Dis2006,12,10:1
5Water vapor isotherm and heat of immersion of Na/Ca-montmoriUonite systems I : homoionic clay显示文摘Keren R Shainberg 1975Clays and Clay Minerals1975,23,:1
6Strontium adsorption by noncalcareous soils-exchangeable ions and solution composition effects显示文摘Keren R O'Connor G A 1983Soil Science1983,135,:1
7Diurnal regulation of scent emission in rose flowers显示文摘Keren H R 2007Planta2007,226,6:1
8Effect of soil texture and CaCO3 content on water in? hration in crusted soil显示文摘Ben - Hur M Shainberg I Bakker D Keren R 1985Irrigation Science1985,6,:1
9A comparison of al-ternative risk-assessment strategies for predicting significant neo-natal hyperbilirubinemia in term and near-term infants显示文摘Keren R Luan X Friedman S 2008Ped-iatrics2008,121,1:1
10厩肥对粉煤灰宏观元素释放规律影响的研究显示文摘通过淋洗试验研究了粉煤灰中宏观元素的活化过程。试验结果显示,粉煤灰与厩肥的混合明显地降低了淋出液的pH以及Ca,Al和Si的浓度,但增大了EC(电导率)以及K,Mg,Na,S,P和Fe的浓度。其混合物的孵化处理显著地增大了初始淋出液的EC以及Ca,Mg,K和S的浓度。在2个孔隙体积内,从处理1~4(即粉煤灰,粉煤灰与石灰混合物,粉煤灰、石灰与厩肥混合物及其孵化)中淋洗出的可溶盐分别占它们各自总淋溶盐量的29.1%,53%,71.8%和78.2%。因此,对粉煤灰与厩肥混合物或其堆肥进行初步淋洗处理后再应用于农田,将有效地减小粉煤灰处理与应用对水土环境的影响和冲击。李法虎 R Keren 2004农业环境科学学报2004,23,2:1
11Combined effect of salinityand excess boron on plant growth and yield显示文摘Yermiyahu U Ben-Gal A Keren R 2008Plant and Soil2008,304,12:1
12Water and salt distribution in a field irrigated with marginal water under high water table conditions显示文摘Ben-Hur M Li F H Keren R 2001Soil Science Society of America Journal2001,65,:1
13Alternative pathways of ovarian apoptosis:death for life显示文摘AMSTERDAM A SASSON R KEREN T I 2003Biochem Pharmacol2003,66,:1
14A comparison of alternative risk-assessment strategies for predicting significant neonatal hyperbilirubi-nemia in term and near - term infants 显示文摘Keren R LuanX Friedman S 2008Pediatrics2008,121,1:1
15The effect of exchangeable Na and phosphogypsum on the structure of soil crust - SEM observation显示文摘Gal M Arkan L Shainberg I Keren R 1984Soil Science Society of America Journal1984,48,:1
16Polymer Effects on Water Infiltration and Soil Aggregation显示文摘Ben-Hur M Keren R 1997Soil Sci Am J1997,61,2:1
17Mother-child touch patterns in infant feeding disorders: Relation to maternal, child, and environmental factors显示文摘Feldman R Keren M Gross-Rozval O 2004J Am Acad Child Adolesc Psychiatry2004,43,:1
18Comparison of Sebia Capillarys capillary electrophoresis with the Primus high-pressure liquid chromatography in the evaluation of hemoglobinopathies显示文摘Keren DF Hedstrom D Gulbranson R 2008Am J Clin Pathol2008,130,5:1
19The effect of exchangeable sodium and gypsum on surface runoff from loess soil 显示文摘KEREN R SHAINBERG I FRENKEL H 1983Soil Science Society of America Journal1983,47,5:1
20Wastewater Effects on Montmorillonite Suspensions and Hydraulic Properties of Sandy Soils 显示文摘Tarchitzky J Golobati Y Keren R 1999SoilSciSocAmJ1999,63,:1
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