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Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.ABSTRACT Ghana faces a persistent infrastructure financing gap, prompting the exploration of alternative funding models such as Public–Private Partnerships (PPPs), green bonds, and blended finance instruments. This study uses macroeconomic and sectoral indicators as proxies to evaluate the long‐term impact of these models on economic performance in ...
Samuel Kojo Aidoo +1 more
wiley +1 more source
Watershed response to a storm rainfall [PDF]
, 1983 筑波大学University of Tsukuba博士（理学）Doctor of Philosophy in Science1982doctoral ...
42529, Yasuhara, Masaya, 安原, 正也
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A Multidimensional Operationalization of Policy Change
Politics &Policy, Volume 53, Issue 5, October 2025.ABSTRACT Policy change is a core variable of policy process research. Several theories and frameworks distinguish different levels of policy change. These include minor change vs. major change (Advocacy Coalition Framework), incrementalism vs. nonincrementalism (Multiple Streams Framework), punctuations vs.
Nils C. Bandelow +2 more
wiley +1 more source
典型黑土小流域侵蚀强度时空变化特征——以海伦市光荣小流域为例
Shuitu Baochi Xuebao, 2023 为了系统反映黑土区典型水蚀小流域土壤侵蚀特征,基于连续的Landsat TM/OLI影像计算NDVI,并基于优化后的土壤和土地利用参数,结合实地调查,利用中国土壤流失方程(CSLE)、基于单位流量加权侵蚀沉积模型(USPED)分别模拟了海伦市光荣小流域2000-2021年间平均土壤侵蚀模数和侵蚀沉积分布格局,并通过融雪侵蚀模型(SHI)模拟了2017年春季融雪侵蚀空间分布,综合分析了小流域的侵蚀格局成因。结果表明:2000-2021年间CSLE模拟发现,小流域平均土壤侵蚀模数为5.57 t/(hm2·a)
汪浩 +8 more
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生态环境与保护, 2020 随着经济的进步与时代的发展,各行各业对各类资源的需求量也越来越大,我国正面临着资源短缺的问题,为了响应可持续发展的号召,人们应该对环境保护的问题进行重点关注,同时还应该加大对生态环境的保护力度。但是,现实情况却不容乐观,经过笔者的相关调查可知,人们对生态资源进行过度开采与利用的现象越来越普遍,开发建设中的水土流失对生态环境的影响也是十分巨大的,因此,加强水土保持工作既有利于缓解环境问题,又有助于促进社会的可持续发展。
博 刘
semanticscholar +1 more source
Study on the relationship between groundwater flow system and groundwater quality in Dejima area [PDF]
, 1988 筑波大学University of Tsukuba博士（理学）Doctor of Philosophy in Science1987doctoral ...
73318, Tang, Changyuan, 唐, 常源
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Integrative Conservation, Volume 4, Issue 3, Page 287-301, September 2025.Qilianshan National Park covers approximately 40% of core snow leopard habitat patches and 50% of movement corridors between patches. Including more of these important areas within the park boundaries should be considered, as the Qilianshan National Park sits at a pivotal juncture between critical snow leopard habitat in China and Mongolia, and may ...
Aliana Norris +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2003 通过在退水阶段对施工期铁路路堤所在的小流域径流和产沙的试验研究表明,由于路堤改变了原来小流域部分支沟的径流途径,使得小流域内的径流主要为壤中流和路堤上游洼地积水的渗流所组成。径流规律分析结果表明,其退水过程按对数曲线规律变化。据此分析了路基渗流和施工扰动对小流域产沙的影响,提出预防路堤渗流直接冲刷下游农田的建议。
许兆义 王美芝 杨成永
doaj +2 more sources
Functional Ecology, Volume 39, Issue 8, Page 1957-1971, August 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Many studies have focussed on niche differentiation at the population level to explain the coexistence of similar species. However, information on how individual‐level processes across multidimensional niches shape community dynamics and species coexistence, especially ...
Man Si +8 more
wiley +1 more source
Shuitu Baochi Xuebao, 2017 为了揭示自然小流域尺度降雨、地形、土地利用结构等对泥沙和磷素输出的影响，根据丘陵区农业小流域自然地貌与土地利用特征，设计了不同尺度的小流域监测点，分别为苏荣、截流、大兴、万安，监测面积分别为3.0，34.6，480.3，1 236.4 hm2，并选择了降雨侵蚀力（R）分别为1 411.5，595.7，391.4 MJ·mm/(hm2·h)的3场降雨事件监测小流域内磷素流失过程特征。结果表明：（1）以居民点集镇和耕地为主的苏荣和截流小流域水文响应速度较快，暴雨事件中径流峰值出现在降雨峰值后的5~10 ...
申, 唐家良
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