Results 81 to 90 of about 182 (165)
Political Cycles, Electricity Policy, and Mexico's Economy
Latin American Policy, Volume 17, Issue 2, June 2026.ABSTRACT Electricity reform in Mexico should stimulate economic growth, improve energy efficiency, and reduce greenhouse gas emissions. This article evaluates the successes and failures of reform and draws lessons across political cycles by analyzing changes in political dynamics—often tied to policy reversals—and the legal framework during the pro ...
David Bonilla
wiley +1 more source
Spatially Downscaling of Future Food Demand for Policy Planning
World Food Policy, Volume 12, Issue 1, May 2026.ABSTRACT Understanding the subnational dynamics of food demand, while accounting for the evolution of the agrifood system at the global level, remains a challenge for designing food policy to ensure food security. To link global agrifood systems with subnational food policy planning, we downscale per capita food demand for 62 food commodities at the ...
Chun Song +3 more
wiley +1 more source
‘The Heart of the Matter’: Grandparent Childcare in Contemporary Chinese Families
Children &Society, Volume 40, Issue 3, Page 556-566, May 2026.ABSTRACT Grandparent childcare is an international phenomenon, especially within families with children under 3 years old. China is no exception, as shown by a number of quantitative studies. Less clear is our understanding of the actual childcare arrangements involved and how these are negotiated and sustained through the intergenerational ...
Jiatong Ling +2 more
wiley +1 more source
Review of Policy Research, Volume 43, Issue 3, May 2026.ABSTRACT Zoning is one of the most widely used land use regulations in the U.S. An increasing number of local governments have adopted zoning ordinances to regulate renewable energy projects. However, there has been very limited research on the impact of this local regulatory tool.
Shan Zhou, Xue Gao
wiley +1 more source
Past, Present, and Future Dynamics of Natural Hazards in China’s Coastal Region: Resilience Implications and Role of Natural Habitat [PDF]
, 2017 随着全球气候变化，海岸带区域正面临着自然灾害的严重威胁，逐步加剧了海岸带地区的脆弱性以及风险性。研究海岸带地区典型自然灾害（台风）的历史演变趋势及地区的脆弱性与恢复能力，寻求有效的生态环境弹性手段来降低灾害带来的风险，对于未来海岸带地区风险预测与提升海岸社区抵抗自然灾害能力至关重要。 本论文重点以台风为例，以功耗指数（PDI）作为评估历年登陆型台风破坏性的指标，基于ArcGIS中地理空间分析方法，利用中国气象局（CMA）的台风数据，分析时间序列上台风登陆频率和破坏性及其空间分布特征。同时 ...
MUHAMMAD SAJJAD
core
基于气候和土地利用变化的云南省水源涵养功能时空演变及驱动力分析
Shuitu Baochi Xuebao[目的] 探讨水源涵养功能是应对未来气候变化的重要途径,现有研究主要侧重于历史和现状的水源涵养功能评估,缺乏对未来水源涵养功能的认识,限制了对区域可持续发展和动态管理的指导价值。[方法] 以云南省为例,结合系统动力学模型、斑块级土地利用变化模拟模型(PLUS模型)和InVEST模型,构建了未来气候和土地利用变化影响下水源涵养评价框架。该框架可在未来气候变化和不同经济发展的背景下预测土地利用变化和评估水源涵养。基于3种共享社会经济路径和典型浓度路径(SSP1-1.9、SSP2-4.5、SSP5-8.5 ...
刘俸汝 +5 more
doaj
Shuitu Baochi Xuebao, 2020 稳定且良好的水源涵养功能是区域发展的基础，生态系统的水源涵养功能是当下区域生态水文研究的关键领域。秦岭因其重要的生态功能与地理环境特征，掌握其水源涵养功能的变化、水源涵养功能空间格局、影响因素敏感性等信息具有科学和实践指导双重意义。选取陕西秦岭为研究区，基于InVEST产水模块和水源涵养模型，计算秦岭2000—2014年15年间水源涵养量的变化，从坡度、高程、坡向方面分析了水源涵养空间格局，选取降水、蒸散发、季节常数、根系深度、叶面积指数等因素敏感性。结果表明：（1 ...
王辉源, 宋进喜, 孟清
doaj
Predicting Multi-Scenario Land Use Changes and Soil Erosion in the Huaihe River Basin Based on Coupled PLUS-CSLE Model [PDF]
[Objective] Understanding the future temporal and spatial evolution of land use and soil erosion in the Huaihe River Basin is of significant importance for rational and coordinated use of land resources, formulating future soil and water conservation ...
CHEN Lei +8 more
core +1 more source
Shuitu Baochi Xuebao[目的] 区域碳储量与土地利用密切相关。在"双碳"目标下,从碳储量视角开展重点区域土地利用变化预测研究,对协调与优化区域土地利用格局、提高区域生态系统未来固碳潜力具有重要参考价值。[方法] 以川西高原为研究区,以2000年、2010年和2020年土地利用为数据源,预测不同情景下2030年土地利用,结合修正的土地利用碳密度数据和InVEST模型估算区域碳储量变化。[结果] (1)从各地类相对研究区的面积占比变化看,2000—2020年草地从65.20%逐步缩减到63.65%,林地从31.73 ...
刘雅璇, 彭秋志, 黄培依, 陈笛
doaj
Measuring the Value of Blue Carbon in China Coastal Zone [PDF]
, 2017 自工业化以来，大气二氧化碳及其他温室气体的浓度已增加了40%，不断增 加的温室气体排放是全球气候变化的重要原因，从而对全球粮食生产以及人类的 生活和生计造成严重影响，气候变化是人类21世纪面临的重大挑战之一。研究 显示全球自然系统封存的生物碳中，超过一半是由海洋生态系统所捕获，被海洋 生态系统捕获并封存的碳称为蓝碳。维持和促进海洋生态系统封存二氧化碳的能 力是应对气候变化的关键措施之一，但是海洋生态系统在应对气候变化中的作用 被长期忽略，其中重要的原因之一是没有赋予蓝碳适宜的价值。本文在对蓝碳理 ...
易思亮
core