Results 41 to 50 of about 1,943 (166)
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
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
Analysis of the characteristics of a hail event with multi-source data [PDF]
To understand the evolution characteristics of radar echo, microphysical parameters, and thermal dynamics of the convective systems during different stages of hailstorms, observations from Doppler weather radar, laser raindrop spectrometer, microwave ...
Chao CHEN +3 more
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Research of rainstorm event disaster hazard assessment method-A case study of "8·12" rainstorm event in Xiaogan City [PDF]
, 2023 The assessment of disaster-causing hazards for the rainstorm event is a fundamental and key aspect of assessing the risk of rainstorm disasters, which can provide essential technical support for meteorological disaster prevention and mitigation.
Fen WANG +6 more
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Veterinary Dermatology, Volume 35, Issue 5, Page 500-507, October 2024.Abstract Background Canine atopic dermatitis (cAD) is a hereditary, generally pruritic and predominantly T‐cell‐driven inflammatory skin disease, involving an interplay between skin barrier abnormalities, allergen sensitisation and microbial dysbiosis.
L. Widorn +2 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
Study of Sound Characteristics of Rain Noise at Sea [PDF]
, 2012 海上降雨引起的噪声信号（简称降雨噪声）是海洋环境噪声背景场的一个重要干扰源，会极大地降低声呐的检测能力，影响水声通信的应用频段和降低水声设备的性能。考虑未来的海战极可能是在恶劣天气（往往伴随疾风暴雨）下进行，充分掌握降雨噪声的特性，不仅在军事上有利于检测海洋环境噪声背景中的干扰源，提升水声设备的作战效能，而且在民用上可拓展应用声学方法监测海上降雨的技术。近几十年来，美国等发达国家为了解释降雨噪声的产生机制，对自然界的降雨噪声开展了大量观测。前期的研究成果表明 ...
刘贞文
core
Integrative Conservation, Volume 3, Issue 3, Page 230-243, September 2024.Tropical secondary forest at early sucessional stage had higher diamter growth rate and mortality rate, however, these forests also are more risked to droughts and high temperatures. Rising temperatures and more frequent droughts may decrease the carbon sink capacity of tropical forest ecosystems. Abstract Tropical forests are major carbon sinks on the
Sai Tun Tun Oo +11 more
wiley +1 more source
Shuitu Baochi Xuebao, 2017 通过对降雨移动方向上不同雨强和降雨历时的研究，揭示移动降雨坡面产流产沙关系及其变化规律，采用2个降雨移动方向（沿径流向上和向下移动）、2个雨强（1.35，2.75 mm/min）和2个降雨历时（60，120 min）在室内进行模拟移动降雨试验，分析不同降雨移动方向、不同雨强和降雨历时坡面产流产沙特征。结果表明：（1）向上移动降雨，相同历时（相同雨强）条件下，大雨强（长降雨历时）初始产流时间为140 s（240 s），比小雨强（短降雨历时）提前165 s（65 s）。（2）向下移动降雨，雨强越大 ...
张 +5 more
doaj
Analysis on factors controlling shallow failures of the cut slopes and its prevention by bio-engineering measures: A case study of the cut slopes along the highway from Shuangcheng to Dajiali [PDF]
Understanding the primary and secondary relations of influencing factors is crucial for predicting deformation and controlling collapse in cutting slopes. Using a cutting slope along the Shuangcheng to Dalijia expressway in Gansu Province as the research
Changgen YAN +4 more
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