Results 11 to 20 of about 101,077 (157)

人工红壤坡面对超大雨强降雨的响应过程

open access: yesShuitu 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  

Rare Records of Tropical Spiders Preying on Vertebrates in Southwest China 热带地区罕见的蜘蛛捕食脊椎动物记录:来自中国西南部的四例观察

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 334-338, September 2025.
This study reports four rare events of spiders preying on vertebrates in the Xishuangbanna Tropical Botanical Garden, Southwest China. The predators included a giant golden orb‐weaver, huntsman spiders, and a wandering spider, while the prey consisted of a small bird, a blind snake, a gecko, and a tiny shrew.
Wanlu Liu   +6 more
wiley   +1 more source

Multiple global change factors alter the scaling of nitrogen to phosphorus in alpine plants

open access: yesFunctional Ecology, Volume 39, Issue 8, Page 2044-2055, August 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometry and allometry of nitrogen (N) and phosphorus (P) reflect nutrient absorption and dynamic allocation by plants, and can be regulated by global change factors (e.g. nitrogen enrichment, climate warming and altered precipitation). Yet, how multiple global
Jiapu Li   +10 more
wiley   +1 more source

泾河南小河沟流域自然降雨特性

open access: yesShuitu 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  

Gaps in the Protection of the Reptiles of Myanmar—Threat Status, Endemism, Protected Area Coverage, and One Plan Approach Conservation 缅甸爬行动物保护中的空白——受威胁状况、稀缺性、保护区覆盖及“一体化保护计划”方法

open access: yesIntegrative 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

不同降雨强度下地面坡度对红壤坡面土壤侵蚀过程的影响

open access: yesShuitu 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  

China's Eco‐Civilisation, Climate Leviathan, and Hobbesian Energy Transition

open access: yesAntipode, 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

移动降雨条件下坡面产流产沙过程试验研究

open access: yesShuitu 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 ...
  +5 more
doaj  

How Many Floods Have Occurred in China in the Past Decade? A Perspective From Social Media

open access: yesEarth'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

不同雨型下紫色土区坡耕地产流产沙特征

open access: yesShuitu Baochi Xuebao, 2017
利用遂宁水土保持试验站5个径流小区1984—2015年次降雨和径流输沙数据,基于降雨过程定量划分出4种雨型,分析了雨型对不同坡度坡耕地产流产沙的作用。结果表明:径流深与各时段最大雨强均呈极显著相关(p<0.01),随着坡度的增加,最大相关系数所对应的雨强时段越短;冲刷量均与I平均呈极显著相关,且相关系数最大。径流深、冲刷量与雨强拟合关系均为幂函数,分别为“凸型”和“凹型”增函数,且拟合度区间分别为[0.79,0.88]和[0.90,0.97],说明冲刷量和雨强的关系更密切 ...
马, 陈, 单志杰, 郎登潇, 廖
doaj  

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