Results 21 to 30 of about 17,943 (169)

Incorporating cyclone risk in the design of marine protected and conserved areas as an ecosystem‐based adaptation approach

open access: yesConservation Biology, Volume 39, Issue 4, August 2025.
Abstract Marine protected and conserved areas (MPCAs) are promoted as an ecosystem‐based adaptation (EbA) approach to increase community and ecosystem resilience to climate change. However, traditional approaches to MPCA design typically do not consider climate risk or habitat condition under a climate threat.
Alyssa L. Giffin   +6 more
wiley   +1 more source

ケイリュウ スイオン ノ ケンキュウ ダイ1ポウ : リンシ カマブチ シケンチ 1ゴウザワ ムセツキ 5ガツ 9ガツカン ノ ケイリュウ スイオン ノ カイセキ [PDF]

open access: yes, 1970
まえがき 筆者はさきに融雪後期(5月~7月上旬間)における実際河川の水温について研究し,冷水流出現象の基本的構造を明らかにする一試案を提起した.河川水温の形成機構を一層明らかにするためには引続き実際河川の年間各時期における水温現象に提起した方法で接近するとともに,他方源流にさかのぼって小流域の渓流についても検討することが重要であると考えられる.幸い農林省林業試験場山形分場(山形県最上郡真室川町釜淵)・小野茂夫技官のご厚意により釜淵試験地・1号沢(流域面積3,060ha)の渓流水温(昭和26年1月 ...
森田 浩
core   +1 more source

Predicting Democracy Support in the Middle East and North Africa

open access: yesWorld 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

黄土残塬沟壑区降雨侵蚀分析

open access: yesShuitu 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

東澳嶺崩塌地之地形演育分析 [PDF]

open access: yes, 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
core  

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

黄土高原南部降雨侵蚀力试验研究

open access: yesShuitu Baochi Xuebao, 2011
基于Wischimeier关于降雨侵蚀力R=EI30的经典算法,以黄土高原南部杨凌天然降雨为研究对象,较详细地分析了一次降雨过程雨滴大小分布;拟合了雨滴中数直径、降雨动能与降雨强度的关系;分别以EI10、EI30、EI60为降雨侵蚀力R指标,计算了该地区6-9月降雨侵蚀力大小,研究分析了降雨侵蚀力与降雨量之间的关系。得出以下结论:雨滴大小分布满足Best提出的分布式;雨滴中数直径反映次降雨过程中雨滴大小的总体趋势,与降雨强度关系密切,其关系式可表示为D50=2.25I0.21 ...
吴光艳   +5 more
doaj  

Threshold conditions for channel initiation in a humid forested mountain : an approach from hydro-geomorphic observations [PDF]

open access: yes, 2004
筑波大学University of Tsukuba博士(理学)Doctor of Philosophy in ScienceOne of the primary issues on landform evolution in mountainous terrains is what rainfall and topographic conditions affect the location of channnel heads.
34848   +2 more
core  

Endemic Creature Under the Risk of Extinction: A Case Study on Gekko badenii in Vietnam 濒危特有物种案例研究:越南 金壁虎 (Gekko badenii)

open access: yesIntegrative Conservation, Volume 4, Issue 2, Page 143-153, June 2025.
This study provided information on the abundance, population demography and activity pattern of an endangered species of Gekko badenii at the type locality of Ba Den Mountain, southern Vietnam. Local and international use and trade in Gekko badenii for food consumption and as pet were investigated and conservation recommendations highlighted.
Hai Ngoc Ngo   +8 more
wiley   +1 more source

降雨因子对粉煤灰产流产渣的影响

open access: yesShuitu Baochi Xuebao, 2017
为研究降雨因子对粉煤灰产流产沙的影响,揭示粉煤灰产流产渣的规律,采用径流小区定位观测试验,研究雨季期粉煤灰径流小区在自然降雨条件下的产流产渣特征。结果表明:(1)观测期内总降雨量为1 160.0 mm,侵蚀降雨量为720.7 mm,7月份降雨、侵蚀降雨均为最多,分别为409.6 mm和217.1 mm,暴雨的侵蚀降雨量最大,为280.1 mm;(2)7月份产流产渣最多,3个小区的产流产渣量分别为0.72,1.06,0.67 m3和0.30,0.90,0.21 kg,暴雨的产流产渣量最大,分别为0.62 ...
张华明   +7 more
doaj  

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