Results 11 to 20 of about 7,292 (111)
Shuitu Baochi Xuebao, 2005 为研究优先流与地表径流的关系,在长江三峡花岗岩坡面,选择了一受人为活动影响较小的天然次生马尾松林地作为试验场地。采用自记流量计记录优先流过程,在小流域出口处设置90°薄壁三角堰和水位计记录了地表径流过程,并对不同层次土壤物理性质进行了测定。结果表明,优先流流量主要决定于产流次雨量及前期影响雨量。优先流峰值总是晚于地表径流峰值出现,从优先流与地表径流峰值出现时间的差异看,优先流的出现使得地表径流峰值出现时间推迟,历时过程延长。当优先流与地表径流流量过程线为双峰时,二者线性关系不明显 ...
何凡 张洪江 程金花 史玉虎 祁生林 潘磊
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Shuitu Baochi Xuebao, 2008 选择太湖流域平原河网地区为试验地点,采用3次重复人工暴雨试验方法,研究暴雨径流过程中地表径流与壤中流氮素流失特征。结果表明:地表径流与壤中流氮素流失特征具有较大差异,地表径流水相TN平均浓度为12.41 mg/L,壤中流水相TN平均浓度低于地表径流约50.65%。地表径流氮素流失以PN为主,DN和PN的流失量比为1∶2.65,壤中流氮素流失以DN为主,DN和PN流失量比为2∶1。整个暴雨径流过程中氮素流失以地表径流为主,占总流失量的81.66%,壤中流氮素流失量相对较少,仅占氮素总流失量的18.34 ...
李恒鹏, 金洋, 李燕
doaj
World Affairs, Volume 189, Issue 2, Summer 2026.ABSTRACT The study examines the moderating effect of governance quality on the relationship between lack of access to energy and gender inequality. Drawing on data from 35 sub‐Saharan African countries, the results obtained using fixed‐effects instrumental variables show that the worsening of gender inequality stems from a lack of access to energy ...
Sabine Nadine Ekamena Ntsama +2 more
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World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Urban expansion significantly impacts flood risk, particularly in rapidly growing areas where impervious surfaces exacerbate surface runoff. This study examines spatial patterns of urban growth and their effects on flood exposure in Mecklenburg County, North Carolina, from 2011 to 2021.
Pegah Madadi, Azad Sadeghi
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A Mini Review of Scientific Designs of Dynamic Responsive Fluids in Battery Technologies
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Dynamic responsive fluids are emerging as transformative elements in the evolution of battery technologies, marking a pivotal shift from static passive designs toward systems that actively sense and adapt to their operating environments. By integrating dynamic responsive fluids, batteries can interact with both internal and external stimuli in
Xiu‐Zhen Yang +11 more
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Shuitu Baochi Xuebao, 2006 通过对川中丘陵区不同施肥坡地径流、泥沙和养分流失的观测与测定分析,研究了紫色土坡耕地暴雨下的产流产沙特征和氮、磷养分流失特征。结果表明,秸秆还田显著影响雨季紫色土坡耕地土壤侵蚀和产流情况;相比单施化肥处理,秸秆还田的泥沙量减少了70%~82%,地表径流量减少了26%~31%,渗漏径流量增加了30%~52%。秸秆还田显著减少了N、P的流失,减幅为60%~76%;各处理P流失的强度顺序依次为:NPK>RSD>RSDNPK>RSDNP>RSDN,N流失的强度顺序为:NPK>RSDN>RSDNPK>RSDNP ...
徐泰平, 朱波, 汪涛, 况福虹
doaj
Sexuality, Gender &Policy, Volume 9, Issue 1, February 2026.ABSTRACT The purpose of this study is to determine the relationship between productivity and socioeconomic characteristics, as well as the degree to which job satisfaction and engagement can strengthen or moderate this association. With a focus on the mediating roles of job satisfaction and job engagement, this study examines the complex relationship ...
Abdullah Al Masud +6 more
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Shuitu Baochi Xuebao, 2005 采用小样方人工模拟降雨,对九寨沟不同植被下不同坡度地表径流量进行了模拟。结果表明:在同一降雨事件下,地表草本盖度、苔藓盖度、凋落物盖度对地表径流量影响程度较大,而土壤初始含水量和腐殖质厚度的影响不大;同一坡度上不同林地类型的地表径流量无明显规律;相同林地类型上,辽东栎林下地表径流量随坡度增加而增大,冷杉林和云杉、辽东栎混交林下地表径流随坡度变化规律不明显。
王晶 包维楷 丁德蓉
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Shuitu Baochi Xuebao, 2008 通过野外径流测定、野外径流模拟实验与实验室径流模拟实验,对内蒙古锡林郭勒盟典型草原地表水分生态过程及其影响因子进行了系统分析,初步得出以下结论:(1)植被退化对典型草原地表径流有重要影响,地表径流与退化强度呈正相关,植被退化显著增加了地表径流系数和地表径流量。(2)植被层的植株高度、密度是影响地表径流的重要因子。地表径流均随着植被高度、密度的增加而降低。但在一定条件下,植被高度作用大于密度作用。(3)枯落物对径流的影响也非常明显,主要表现在直接截留作用和间接阻挡作用,在一定条件下,枯落物作用大于植被作用。
苗百岭 +4 more
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Risk, Hazards &Crisis in Public Policy, Volume 16, Issue 4, December 2025.ABSTRACT Background Hazardous levels of contaminants produced by anthropogenic activities are increasingly pervading residential environs and urban areas. Hazardous contamination can pose significant health risks for citizens dwelling in exposure pathways.
Rosina Johnson +3 more
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