earth_science papers | Gist.Science

Fractal Dimension Characterization of Heterogeneity, Pore Structure and Permeability in Permo–Triassic Khuff Carbonate Reservoirs, Central Saudi Arabia

This study characterizes the Permo–Triassic Khuff carbonate reservoirs in central Saudi Arabia by demonstrating that fractal dimensions, calculated via conventional, statistical, and optimization-based methods, serve as robust quantitative descriptors of pore-network heterogeneity that strongly correlate with and effectively predict reservoir permeability and connectivity.

Khalid Elyas Mohamed Elameen Alkhidir2026-07-27

📄 other

Spatial distribution, hypervolumes, niche overlaps, and dynamics of the forest plant-community of Triplochiton scleroxylon, Terminalia superba, and Antiaris toxicaria in the context of climate change across Africa

This study utilizes machine learning algorithms to predict that climate change will drive niche shifts and a spatial redistribution of the *Triplochiton scleroxylon*, *Terminalia superba*, and *Antiaris toxicaria* plant community across Africa, characterized by expansion in West and Central regions and contraction in East and Southern areas where only select species may persist.

Jean Cossi GANGLO2026-07-27

📄 other

Land degradation study of Ghaziabad district due to urbanization using Geoinformatic techniques for the last 25 years

This study utilizes geoinformatic techniques and Landsat imagery from 1994 to 2018 to demonstrate that rapid urbanization in Ghaziabad district has significantly increased built-up areas and water bodies while causing substantial declines in vegetation, barren land, and forest cover, leading to a measurable deterioration in soil quality.

Sukalpaa Chaki2026-07-27

📄 other

Decomposing climate–health vulnerability into structural, system buffering and amplification components: a longitudinal analysis in Kenya

This study introduces a layered vulnerability framework that decomposes climate–health risk in Kenya (1987–2023) into structural, buffering, and amplification components, demonstrating that while baseline susceptibility explains most variation, system capacity and amplification pathways are critical independent modifiers of realized impacts.

Solomon M. Nzioka¹, Lokolile Lolem Bosco², Martin Muchangi³2026-07-27

📄 other

Scenario Based Dynamic Material Flow Analysis of Dutch Macro Infrastructure Stocks: Assessing Future Material Demand and Circularity Potentials

This study employs a dynamic material flow analysis to forecast future demand and circularity potentials for steel, concrete, and asphalt in Dutch macro-infrastructure, revealing that while end-of-life material recovery could theoretically satisfy the majority of future demand, technological and regulatory constraints currently limit closed-loop circularity to significantly lower levels, necessitating targeted policies to reduce virgin material use and achieve net-zero targets.

Md Faysal Tareq, Peter Berrill, Arnold Tukker2026-07-27

📄 other

Analysis of Water Quality Characteristics and Pollution Sources in Different Water Seasons of Small Watersheds in Hilly and Mountainous Areas—Taking the Binan River Basin in Bishan District as an Example

This study analyzes the water quality characteristics and pollution sources of the Binan River Basin in Bishan District using a PMF model, revealing that nitrogen pollution is the primary contaminant, water quality deteriorates during the dry season, and agricultural runoff is the dominant source, thereby providing a scientific basis for seasonal and source-specific watershed management strategies.

Ruijia ZHANG, YAN shuai, Chen yucheng, ZHU kangwen, ZHOU muge, GUAN hongyou2026-07-27

📄 other

Phytoplankton dominate marine organic matter for the past half-billion years

A global analysis of phytane and pristane isotopes reveals that phytoplankton have consistently dominated marine organic matter production and burial over the past 500 million years, with observed isotopic variability driven by environmental CO₂ levels rather than evolutionary changes in biological functionality.

Caitlyn Witkowski, Jingyi Wei, Matthew Roche, Bernhard Naafs, Richard Pancost2026-07-27

📄 other

Imaging shallow magma storage and fluid pathways beneath Aso volcano using ambient-noise tomography

Using ambient-noise tomography on a temporary seismometer network, researchers imaged a shallow, pressurized magma storage zone and an overlying hydrothermal conduit beneath Mt. Aso's Nakadake crater, revealing how these structures facilitate fluid transport and generate volcanic tremors.

Takeshi Tsuji, Chanmaly Chhun, Rezkia Andajani, Yoshihiko Ishikawa, Naoki Nishizaka, Hiromichi Yano2026-07-25

📄 other

Arctic-boreal carbon flux representation greatly improved despite remaining gaps

Although targeted additions to the Arctic-boreal carbon flux tower network between 2022 and 2024 significantly improved regional representativeness for most measurement categories, substantial gaps persist, particularly for year-round methane monitoring and in Russia.

Kyle Arndt, Brendan Rogers, Anna-Maria Virkkala, Martijn Pallandt, Mathias Goeckede, Judith Vogt, Isabel Wargowsky, Torb (…)2026-07-24

📄 other

Back-and-forth moribund ethnobotany: Erosion and fragmentation of Local Ecological Knowledge among Afghan returnees in contemporary Afghanistan and perspectives for an ethnobiology of the refugees

This study reveals that forced displacement and prolonged exile have caused a severe erosion and fragmentation of Local Ecological Knowledge regarding wild food plants and herbal teas among Afghan returnees, transforming much of this heritage into "inert knowledge" and highlighting the urgent need for biocultural policies to support its revitalization.

Ajmal Khan Manduzai, Abdul Ghani Karimi, Andrea Pieroni2026-07-24

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