📄 earth science

Effect of alternative substrates on treatment performance and microbial community structure in constructed wetlands

This study demonstrates that cork-based substrates serve as sustainable and effective filter media in constructed wetlands, offering superior nitrate removal and bisphenol A attenuation, supporting plant growth, and fostering diverse microbial communities compared to conventional gravel systems.

Marwa Ben Saad, Eya Ben Othmen, Syrine Boukhili, Hajer Ennouri, Khadija Kraiem, Wided Ben Ammar, Maher Gtari, Karim Ben (…)2026-09-20
📄 earth science

Hydrothermal thresholds and microbial carbon use efficiency regulate seasonal litter decomposition dynamics in an arid ecosystem

This study demonstrates that in arid ecosystems, seasonal litter decomposition is governed by distinct hydrothermal thresholds that drive microbial physiological trade-offs, where summer decomposition relies on phosphorus-enhanced carbon use efficiency and hydrolase activity, while winter decomposition shifts to a nutrient-mining strategy constrained by low temperatures and high lignin content.

Meiqi Li, Xiangyi Li2026-09-19
📄 earth science

Assessment of Ecological Environmental Quality and Analysis of Driving Forces in a Plateau–Mountain Region

This study develops a Modified Remote Sensing Ecological Index (MRSEI) incorporating topographic correction and ecological constraints to accurately assess and project spatiotemporal ecological quality in plateau–mountain regions, revealing significant improvements from 1996 to 2025 driven primarily by topographic and climatic factors, yet forecasting a slight decline by 2034 under natural development.

Sheng Huang, Jinbao Liu, Xiaorui Qi, Sihan Ni, Shixiang Zuo2026-09-19
📄 earth science

Livestock Pressure and River Water Quality in Jombang Regency, Indonesia Based on Monitoring Records and Livestock Statistics

This study analyzes Jombang Regency's river water quality by correlating livestock statistics with monitoring data from 2023 to 2025, revealing significant exceedances in organic, nutrient, and fecal indicators that align with high livestock density and supporting targeted non-spatial pollution control measures despite the presence of other pollution sources.

Wiwid Ida Khikmatin, Agus Susilo, Maharani Pertiwi Koentjoro2026-09-18
📄 earth science

How important are sediment-budget estimates for shoreline protection under sea-level rise?

This study demonstrates that while sediment budgets primarily control short- to medium-term shoreline dynamics along the Rio Grande do Sul coast, sea-level rise becomes the dominant driver of coastal retreat over centennial timescales, highlighting the necessity of integrating multitemporal sediment estimates with morphological data to inform effective shoreline protection and climate adaptation strategies.

Joana Sgandella, Salette Figueiredo, Elaine Goulart, Natália Carvalho, Augusto Cavalcanti2026-09-18
📄 earth science

Segmentation of the Andaman–Sumatra forearc and implications for great-earthquake rupture

By jointly inverting GPS velocities and earthquake slip vectors, this study reveals that the 2004 Sumatra–Andaman earthquake ruptured across a previously unrecognized forearc plate boundary known as the Nicobar Neck, which separates two microplates with distinct loading conditions and explains the event's variable slip distribution and the lack of large earthquakes on the adjacent creeping Andaman–Nicobar Fault.

Himanshu Agrawal, Karen Lythgoe, Kyle Bradley, Lujia Feng2026-09-18
📄 earth science

Repeated measures of mercury concentrations demonstrate persistent territory-level contamination and stable individual differences in exposure in a riverine bird predator

A study of white-throated dippers across 11 French rivers reveals that mercury exposure is driven by persistent territory-level contamination and stable individual differences, with human footprint unexpectedly showing a negative association.

Molly Ohse, Lara Hinninger, Gareth Norton, Blandine Doligez, Pierre Bize2026-09-18