Results 21 to 30 of about 23,159 (150)
Shuitu Baochi Xuebao, 2023 明确黄土丘陵区降雨对土壤水分影响,对准确评估降雨格局变化对生态系统结构和功能的影响具有重要意义。以陕北黄土丘陵区退耕地栽植后自然撂荒23年的柠条人工纯林为研究对象,通过土壤湿度传感器监测不同土层土壤体积含水量,探讨不同土层土壤水分补充增量对降雨特征(降雨量、降雨历时和降雨强度)的响应。结果表明:(1)土壤水分消耗和补充主要集中于0-500 cm土层,其月变化在垂直剖面呈"双峰"(4—5月)、"单峰"(6月)和"双峰"(7—10月),随土层深度增加变化率减弱;(2)当降雨量>4 ...
孙亚荣 +6 more
doaj
Pensando - Revista de Filosofia, 2016 Não parece haver, ao menos num primeiro olhar, qualquer ponto de convergência entre a literatura de Lampedusa e a filosofia de Kierkegaard. Contudo, com um pouco mais de investigação, tal percepção revela-se falsa. Ambos os autores situam-se no século XIX e, nesse sentido, há forte conexão entre ambos a partir de uma análise histórica, filosófica e ...
openaire +2 more sources
, 2014 土石流災害發生受到降雨的強度和空間變異性影響。因此，了解降雨的空間變異性特性是土石流減災的先決條件。在本研究中，針對不同降雨類型使用地理統計進行降雨空間變異特性分析，分別對夏季對流雨、颱風、梅雨和冬季鋒面雨進行分析，選取較適合的降雨空間變異特性。結果發現夏季對流雨的影響範圍最小 (約55 公里)，代表其空間變異大，而其他三種降雨類型影響範圍較大 (約69 公里) 則空間分布較均勻。因此，在研究中建議以夏季對流雨的空間變異特性，進行台北市雨量站網的評估。The intensity and spatial ...
Cheng-Chia Lien +15 more
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Predicting Democracy Support in the Middle East and North Africa
World Affairs, Volume 188, Issue 3, Fall 2025.ABSTRACT Democracy support among Arab citizens has decreased noticeably in the past decade. The Arab Barometer data demonstrates more than an average of 15–30 points drop‐in democracy support depending on the country considered. The present research utilizes the seventh wave data set offered by the Arab Barometer conducted between October 2021 and July
Mehmet Onder, Malek F. Abduljaber
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Shuitu Baochi Xuebao, 1994 在分析了子午岭林区开垦裸露地降雨侵蚀资料的基础上，首次研究了不同地形部位开垦裸露地上的侵蚀性降雨底值，侵蚀性降雨雨型与土壤侵蚀量的关系和降雨侵蚀力定量指标及其与土壤侵蚀量的关系，其结构表明，引起土壤侵蚀性降雨底值次降雨量为１０ｍ，Ｉ１０为０．４ｍｍ／ｍｉｎ或Ｉ３０为０．２５ｍｍ／ｍｉｎ。在侵蚀性降雨雨型中，以突发型侵蚀性降雨雨型引起的侵蚀量最大，其次为峰值型 ...
郑粉莉 唐克丽
doaj +2 more sources
発表要旨：ベースラインデータの着実な蓄積と他分野研究者への提供 [PDF]
, 2018 ベースラインデータの着実な蓄積と他分野研究者への提供熱帯雨林における森林微気象の形成メカニズム ー特に，生物現象のトリガーとなる乾燥期の現象について一熱帯雨林における降雨の特徴 ...
蔵治 光一郎
core +1 more source
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
Shuitu Baochi Xuebao, 2001 根据长期定位水土流失与防护林效益观测资料 ,分析了黄土残塬沟壑区吉县的降雨侵蚀。研究结果表明 ,当降雨达到一定量级才能产生土壤侵蚀 ,侵蚀性降雨的雨量标准为 10 mm/次 ,产生严重土壤侵蚀的降雨标准为≥ 3 0 mm/次 ,造成极为严重侵蚀的是降水频率为 5 %的大暴雨和降雨强度≥ 1.0 mm/ min的降雨。场降雨量、降雨强度与小流域产沙模数呈线性相关。因此 ,防止暴雨侵蚀是防治水土流失的关键。
魏天兴
doaj +2 more sources
, 2014 梅姬颱風 (2010) 與東北季風之共伴效應於台灣宜蘭縣蘇澳地區帶來了豐沛降雨，高累積雨量造成了台9 線蘇花公路群集性土砂災害，尤其在115.9K 上邊坡更誘發了約210 萬m3 之大規模崩塌土砂災害。本文從現地地質調查、致災機制、水文分析及遙測影像判釋等面向進行討論。由降雨-延時-頻率分析得知近年來誘發重大崩塌事件的雨量皆高於200 年回歸週期，並獲致良好判別致災雨場之I-R 圖降雨臨界線關係(Re+53.5Iave=1,146)。多時期遙測影像判釋指出東澳嶺坡頂之弧型張力裂隙仍有持續溯源發展之趨勢 ...
Ching-Fang Lee +13 more
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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
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