Results 31 to 40 of about 2,059 (166)
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
wiley +1 more source
Shuitu Baochi Xuebao, 2006 为了研究三峡地区花岗岩林地优先流影响因子，在长江三峡地区曲溪小流域内选定的实验坡面下部，垂直开挖了一个长度为2．9m、深度为2．60m的土壤剖面。在降雨过程中观察优先流过程，分析降雨对优先流的影响。同时对该地区的土壤物理性质和土壤渗透特性进行了测定，分析其对优先流的影响。分析结果表明，影响长江三峡花岗岩区优先流产流的降雨量在26mm（24h降雨量）以上。长江三峡库区的降雨可分为递减降雨型、均匀降雨型、突发降雨型及峰值降雨型4种类型，不同降雨类型对应的优先流过程都表现出相应的降雨过程特征 ...
程金花 +5 more
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Shuitu Baochi Xuebao, 2019 基于定西市安家沟流域2014-2016年连续3年侵蚀性降雨产流产沙资料，研究了植被类型和降雨对坡面侵蚀产沙的影响。结果表明，侵蚀性降雨可分为3类：A雨型（短历时、中高雨强）、B雨型（中雨量、小雨强）和C雨型（大雨量、小雨强），产流产沙频次为B雨型 > C雨型 > A雨型。径流系数油松林（6.915%~9.379%）、小麦地（5.838%~9.034%）和苜蓿地（6.610%~9.671%）分别是冰草地（2.724%~5.246%）的1.7~2.5倍，是沙棘林（2.296%~3.863%）的2~3倍 ...
朱燕琴, 赵志斌, 齐广平
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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
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Shuitu 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
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Shuitu Baochi Xuebao, 2021 研究自然降雨对干化土壤水分恢复的有效性，有利于合理利用降水资源，加强干化土壤水分管理，促进土壤干层得到有效恢复。在陕北米脂试验站设置野外地下大型土柱，通过2014—2019年连续定位监测降雨、土壤含水率状况，分析自然降雨对干化土壤水分恢复的有效性。结果表明：（1）从深层干化土壤水分恢复角度考虑，黄土丘陵半干旱区降雨可以分为3种类型：表层入渗快速蒸发型、浅层入渗缓慢蒸发型和深层入渗补给型。其中深层入渗补给型降雨为有效降雨，该类型雨量 > 26 mm，能够对深层干化土壤产生有效水分补给。2014 ...
汪星 +5 more
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, 2014 翡翠水庫係為大臺北地區民生用水重要來源，其污染來源以非點源污染為主。保護帶設置為非點源污染最佳管理作業 (BMP)，也是目前翡翠水庫管理策略之一。本研究應用地理資訊系統 (GIS) 以及暴雨管理模式 (SWMM)，模擬保護帶 (Buffer Strips) 設置後對翡翠水庫集水區非點源污染削減量，模擬水質項目包含懸浮固體 (SS)、總磷 (TP) 及生化需氧量 (BOD)。研究結果顯示，在蓄水範圍四周設置50 公尺保護帶時，設置保護帶的子集水區SS 輸出削減率超過80%，TP 削減率超過50%，BOD ...
Chi-Feng Chen +5 more
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Big Cat Mortality in Subsistence Hunts in Amazonia 亚马孙雨林地区生计狩猎中的大型猫科动物致死情况研究
Wildlife Letters, Volume 3, Issue 1, Page 16-21, March 2025.We use data from a participatory biodiversity monitoring program to estimate the annual mortality of jaguars and pumas resulting from subsistence hunts in two Amazonian Extractive Reserves. We estimate that around 50 big cats are killed annually in the study area, which is consistent with an independent estimate for the same area and within the same ...
Elildo A. R. Carvalho Jr. +3 more
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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
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Shuitu Baochi Xuebao, 2022 侵蚀性降雨是引起喀斯特黄壤坡面水土流失的主要动力因子。采用贵州省遵义市浒洋水流域2018—2020年4个径流小区92次侵蚀性降雨产流产沙实测数据,研究次降雨条件下,裸露坡面和块石出露小区对产流产沙的影响。结果表明:(1)侵蚀性降雨可以分为A、B、C 3类,A类降雨是造成喀斯特黄壤坡面土壤侵蚀的主要雨型。侵蚀性降雨的标准为次降雨量＞6.6 mm或I30＞3.6 mm/h。(2)裸露坡面63.27%的侵蚀性降雨径流深＜0.4 mm,66.30%的侵蚀性降雨土壤流失量＜1 g/m2 ...
陈磊 +5 more
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