Results 41 to 50 of about 11,630 (162)
Shuitu Baochi Xuebao, 2004 采用野外放水冲刷实验,对神府东胜煤田弃土弃渣侵蚀产沙规律进行了系统研究。结果表明:弃土弃渣堆积年限越短,可蚀性越大,侵蚀程度越强。经过4～7年的自然沉降过程,其表面的紧实度逐渐趋于稳定值。流量相同时不同下垫面条件下的产沙量1997年弃渣>1994年弃渣>煤渣>煤矸石。径流量、产沙量与放水流量呈线性关系,产沙量与径流量亦呈线性关系。集中的水流冲刷对弃土弃渣坡面造成严重的侵蚀,使含沙量保持在一个较高的水平,随着时间的变化含沙量出现剧烈的上下波动,总体上表现出逐渐减小的趋势,同时 ...
王文龙 李占斌 李鹏 鲁可新 郭彦彪 郑良勇 徐伯荣
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Shuitu Baochi Xuebao, 2016 利用黄土高原2种典型的土壤类型（黄土和塿土），在2个降雨强度（44.5，95.5 mm/h）和2个坡度（8.7%，25.9%）条件下进行了人工模拟降雨试验，研究了3种水质（去离子水、自来水、盐水）对坡面产流、产沙过程的影响。结果表明，2种土壤类型的产流过程差异显著，黄土条件下去离子水最先产流，但产流速率小于自来水与盐水；而塿土条件下去离子水的产流速率始终最大，自来水与盐水由于离子数量相当，产流速率差异较小。水质主要通过地表结皮的形成与发育影响径流，以总降水量45.5 mm为例 ...
谢哲芳, 刘如心
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Shuitu Baochi Xuebao, 2023 在贡嘎山原始森林不同土壤质地的样地采集制备原状土柱,监测并分析2020年夏季2场暴雨期间入渗出流过程及出流水稳定同位素(δ18O)变化特征。结果表明:(1)海拔2 649 m的富含砾石的粉壤土样地A在8月6日和8月11日次降雨后平均总出流量(分别为4.14,14.61 L)比海拔3 000 m的粉壤土样地B(1.45,11.99 L)大。样地A的出流过程对降雨的响应也更敏感。(2)出流水的同位素变化幅度小于降雨同位素变化幅度,入渗过程中新旧水混合强烈。(3 ...
叶鑫 +5 more
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The escalating issue of drug‐resistant pathogens, largely driven by the overuse of conventional antibiotics, has become a significant global health threat. Developing alternative therapeutic strategies and fabricating natural biological enzyme materials that mimic the high efficiency, selectivity, and mild‐operating conditions of natural ...
Shuai He +11 more
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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, 2017 为探讨植被过滤带在坡面产流产沙过程中对水沙的拦截效果及其水动力学机理，通过在室内土槽上设置模拟植被过滤带并进行浑水冲刷试验，得到有无模拟植被过滤带情况下的产流产沙情况及相关水动力学参数，定量分析了植被过滤带对径流、泥沙的拦截效果并探讨了坡面产沙率与水动力学参数之间的关系。结果表明，植被过滤带在放水冲刷试验中能有效拦截径流和泥沙，且在较小流量下，径流和泥沙的拦截效果更好，在200 L/h流量下，拦截率分别可达33.2%和96.9%；在冲刷过程中，有无模拟植被过滤带产沙率与水流剪切力 ...
陈 +4 more
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Functional Ecology, Volume 40, Issue 1, Page 163-175, January 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Grazing by large herbivores is a critical factor shaping grassland biodiversity and ecosystem functioning worldwide, yet its consequences for soil communities remain poorly understood.
Quanhui Ma +12 more
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Regulation &Governance, Volume 20, Issue 1, Page 35-63, January 2026.ABSTRACT Existing literature largely agrees that authoritarian regimes establish channels for political participation to gather valuable information on citizens' anti‐regime sentiments and policy preferences and to supervise lower‐level bureaucrats and firms.
Anton Bogs
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Shuitu Baochi Xuebao, 2019 为研究植物篱篱带宽度对紫色土坡地产流产沙过程的影响，寻求有效控制水土流失的最优植物篱带宽度，采用人工模拟降雨试验对3种篱带宽度（20，30，40 cm）、不同雨强（30，60，90 mm/h）下的紫色土坡地产流产沙过程进行研究。结果表明：（1）植物篱能有效延缓紫色土坡面产流时间，坡面产流量与篱带宽度能拟合为二次方程（R2=0.99）。随篱带宽度的增大，流速减小，且篱带内部的流速下降最明显，流速变化曲线波动幅度变小。（2）植物篱在产沙过程前期有效抑制坡面产沙量的增长，坡面产沙量随篱带宽度的增大而减少 ...
刘枭宏 +5 more
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Integrative Conservation, Volume 4, Issue 4, Page 675-685, December 2025.We demonstrated that Anguilla japonica eDNA concentration was allometrically scaled with their body size in both the laboratory and riverine environments. Integrating body size allometry has the potential to improve population abundance estimates in the field, whereas further clarification is required for understanding eDNA production mechanisms ...
Toshiaki S. Jo +2 more
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