Results 11 to 20 of about 93,371 (186)
Shuitu Baochi Xuebao, 2016 通过设计2种降雨强度(90，120 mm/h)和4个地表坡度(10°，15°，20°，25°)的模拟降雨试验，研究了降雨强度和坡度对粘黄土坡面片蚀的影响。结果表明，试验条件下当降雨量相同时，降雨强度和坡度对径流量的影响不显著，而对坡面片蚀量的影响非常显著；当降雨强度由90 mm/h增加到120 mm/h时，在相同坡度条件下坡面片蚀量增加76.2%～128.0%；当坡度由10°变化到25°时，90 mm/h和120 mm/h两种降雨强度坡面片蚀量分别增加29.3%～72.1%和1.8%～75.4 ...
盛贺伟 +3 more
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工程与管理科学山区泥石流灾害在强降雨诱发下表现出突发特性显著、破坏强度高的特征，其形成与降雨强度大小、地形地貌条件及松散物源空间分布存在紧密关联。本文依托典型山区集水区的水文监测数据、地形特征参数及物源勘察资料，构建泥石流触发条件的定量分析框架，借助实测降雨动态过程与地表环境响应数据，筛选关键触发因子并建立阈值识别模型、研究聚焦降雨强度梯度、累积降雨总量、坡面产流效率及松散堆积体含水率等核心参数，系统分析各因素对泥石流起动过程的影响权重、研究结果可为山区泥石流早期预警系统构建 ...
忠伍 鲍, 红战 刘
semanticscholar +1 more source
Integrative Conservation, Volume 4, Issue 2, Page 165-187, June 2025.Upper left: Cyrtodactylus myintkyawthurai, upper right: Hemiphyllodactylus montawaensis, and bottom left: Gyiophis salweenensis, just recently described, microendemic taxa not yet covered by any protective measures. Bottom right: Geochelone platynota offspring from Cologne Zoo, an example for successful ex situ keeping and conservation breeding of ...
Carolin Scholten +7 more
wiley +1 more source
Shuitu Baochi Xuebao, 2017 为了研究人工红壤坡面对超大雨强降雨的响应过程，利用人工模拟降雨系统和变坡土槽，分别采用140，160，190 mm/h的雨强和10°，15°，20°，25°的坡度，对经过简单人工处理的红壤坡面在超大雨强降雨条件下的产流产沙响应过程进行了试验。结果表明：经过简单人工处理的红壤坡面在140~190 mm/h超大雨强下的土壤侵蚀模数明显低于50~120 mm/h雨强下未进行相应处理的坡面，细沟发育较为缓慢，对坡面土壤的处理方式能够有效提高坡面的抗侵蚀能力。在同雨强下，随着坡度的增加，产流时间先延长后缩短 ...
金, 谢斯琴, 宋, 汪
doaj
China's Eco‐Civilisation, Climate Leviathan, and Hobbesian Energy Transition
Antipode, Volume 57, Issue 3, Page 830-861, May 2025.Abstract Scholars have hitherto tended to theorise China's ecological civilisation project either as a form of environmental authoritarianism or as a vision of eco‐socialism. This paper contributes to the conversation by conducting a textual analysis of Chinese scholarly discussions on eco‐civilisation.
David Chen
wiley +1 more source
How Many Floods Have Occurred in China in the Past Decade? A Perspective From Social Media
Earth's Future, Volume 13, Issue 4, April 2025.Abstract Global climate change has led to frequent and widespread flood disasters in China. Traditional flood disaster investigations mainly focus on major flood events, and small‐scale flood events are often overlooked. This study utilized the Sina Weibo social media platform to detect flood events in 370 cities in China from 2012 to 2023.
D. Shen +5 more
wiley +1 more source
Shuitu Baochi Xuebao, 2017 采用德国HSC-OTT Persivel32激光雨滴谱探测仪监测南小河沟流域自然降雨的雨滴谱，分析不同雨型自然降雨雨滴特征及其分布规律，并分析了降雨特性各要素间的相互关系。结果表明：（1）该区自然降雨雨滴直径集中在0.3~1.5 mm，与黄土高原利用传统的滤纸色斑法测定结果基本一致，但略小于东北和闽南地区 ...
乔勇虎, 郭东静, 陈锡云
doaj
The need for carbon finance schemes to tackle overexploitation of tropical forest wildlife
Conservation Biology, Volume 39, Issue 1, February 2025.Abstract Defaunation of tropical forests, particularly from unsustainable hunting, has diminished populations of key seed dispersers for many tree species, driving shifts in forest community composition toward small‐fruited or wind‐dispersed trees with low wood density. Such shifts can reduce aboveground biomass, prompting calls for overexploitation to
Caroline E. Milson +3 more
wiley +1 more source
Shuitu Baochi Xuebao, 2011 通过室内模拟降雨试验,研究了不同降雨条件下地面坡度对红壤坡面产流过程和侵蚀过程的影响,结果表明,红壤坡面起始产流时间随坡度的增加有所提前,但不明显,坡面起始产流时间的早晚主要受降雨强度控制;坡面径流量随雨强的增大而增大,随坡度的变化比较复杂,在雨强为50mm/h时,径流量随坡度的增加而减小,在雨强为75mm/h时,径流量随坡度的增加先增大后减小;不同降雨强度下各坡度的侵蚀产沙率都是在降雨初期急剧上升,随后以指数下降,形成一个向左倾斜的曲线。坡度对坡面侵蚀产沙的影响随雨强的增大而增强 ...
张会茹, 郑粉莉
doaj
Review of Policy Research, Volume 41, Issue 6, Page 985-1016, November 2024.Abstract Sustaining agricultural production in arid and semi‐arid regions is of paramount importance to food security, geo‐political independence, and social stability. In this context, it is vital to understand the effectiveness of policies. In this article, we aim to answer the question of what role the state and its policies play for soil protection
Andreas Thiel +3 more
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