Results 91 to 100 of about 1,712,167 (316)

Water Governance Under International Pressure: Policy Narratives, Food Security, Scarcity, and the Politics of Survival in Iran

Environmental Policy and Governance, EarlyView.
ABSTRACT Water governance is increasingly influenced by a paradox at the nexus of environmental scarcity and food security. Escalating water scarcity crises coincide with geopolitical disruptions that have exposed the fragility of global food supply chains, prompting states to expand domestic food production at the expense of water conservation ...
Alireza Raisi
wiley   +1 more source

Models of Fractal River Basins

Journal of Statistical Physics, 1998
Two distinct models for self-similar and self-affine river basins are numerically investigated. They yield fractal aggregation patterns following non-trivial power laws in experimentally relevant distributions. Previous numerical estimates on the critical exponents, when existing, are confirmed and superseded.
M. Cieplak, A. Giacometti, MARITAN, AMOS, RINALDO, ANDREA, I. Rodriguez Iturbe, J. R. Banavar   +5 more
openaire   +6 more sources

Does Context Really Matter for Environmental Policy Implementation? A Systematic Comparison of Implementation Determinants

Environmental Policy and Governance, EarlyView.
ABSTRACT Environmental policy addresses wicked problems such as climate change, biodiversity loss, and pollution—issues marked by complexity, conflicting objectives, and stakeholder resistance. After often‐contested policy formulation, implementers face intense pressure to deliver results.
Jonas von Pfister, Nicolai Goritz, Giorgio Varanini, Adrien Ludot, Julian Nal, Maria Proestou, Alexandra Gottinger   +6 more
wiley   +1 more source

Ecology and some morphological characteristics of the Zootoca vivipara (Reptilia: Lacertidae) on the southern periphery of its range in the steppe zone (Orenburg State Nature Reserve, Russia)

Nature Conservation Research: Заповедная наука, 2018
Occurrence of common lizards (Zootoca vivipara) in the steppe zone on the southern border of its range (site «Burtinskaya Steppe» of the Orenburg State Nature Reserve, Russia) is confined to habitat with azonal, predominantly meadow, vegetation on the ...
Galina V. Eplanova, Olga G. Kalmykova, Andrey G. Bakiev, Anastasia A. Klenina   +3 more
doaj   +1 more source

Perceptions of Governance (Il)Legitimacy Mediate Climate Change Adaptation in the Lake Victoria Basin, Uganda

Environmental Policy and Governance, EarlyView.
ABSTRACT Governance is a well‐known dimension of adaptive capacity across various frameworks, however specific links between perceptions of governance (il)legitimacy and adaptive capacity remain relatively unexplored. In this study, we investigate connections between climate change adaptation and perceptions of governance (il)legitimacy using focus ...
Emma D. Rice, Jonathan G. Low, Molly Atkins, Bwambale Mbilingi, Veronica Mpomwenda, Laban Musinguzi, Vianny Natugonza, Fiona Nunan, Elizabeth A. Nyboer   +8 more
wiley   +1 more source

Genetic Algorithm‐Driven Analysis of Gravitational Water Vortex Power Plant Runner Performance: A Comparative Study Integrating Experimental and Computational Fluid Dynamics

Energy Science &Engineering, EarlyView.
This study integrates genetic algorithm optimization, CFD simulation, and experimental validation to identify the optimal runner geometry for a gravitational water vortex turbine. The combined approach enhances vortex stability and improves energy conversion efficiency, demonstrating strong agreement between predicted and measured performance ...
Zakaria. A. Mwakitwange, Adam Faraji
wiley   +1 more source

Underground mining impact on groundwater in Kuye River Basin, China: A coupling model study

River
The Kuye River Basin has experienced a rapid depletion of groundwater due to the increased coal production. In this study, by introducing the empirical equations derived from the three zone theory in the coal mining industry in China as a boundary ...
Shu Li, Yi Jing, Xiangyu Zhang, Fengran Zhang, Qingsong Qi, Ningbo Li, Le Bai   +6 more
doaj   +1 more source

Regulatory mechanism of slope water erosion by strip grass cover patterns

Geoderma
The inhibitory effects of vegetation on slope water erosion are well documented, but the mechanisms by which strip grass cover regulates runoff and erosion are not fully understood.
Shuai Wang, Xizhi Lv, Qiufen Zhang, Ruipeng Wang, Yongxin Ni, Li Ma, Jianwei Wang, Hengshuo Zhang   +7 more
doaj   +1 more source

Hydrologic Conditions in the Delaware River Basin, Annual Report 2009

, 2009
This is an Annual Report of the hydrological conditions in the Delaware River Basin for 2009. It includes the hydrologic highlights of 2009, as well as summaries of precipitation, streamflow, reservoir storage, ground water, and salt line patterns in the

core   +1 more source

Molecular Palaeontology Prospects From Exceptionally Preserved Eocene Brackish‐Water Bivalve Batissa sitakaraensis (Venerida: Corbiculidae) From Hokkaido, Japan

Geological Journal, EarlyView.
This study reports the exceptional preservation of the Eocene freshwater bivalve Batissa sitakaraensis from Hokkaido, Japan. Multimodal analyses reveal that both the aragonitic shell mineralogy and the delicate organic periostracum retain their original structural and chemical characteristics after millions of years.
Taro Yoshimura, Kazuki Hirota, Hiroyuki Kagi, Takashi Matsubara, Takenori Sasaki   +4 more
wiley   +1 more source