📄 Category

earth_science

1490 papers

📄 earth_science

Effects Climate Variability on Household Income Stability Among Smallholder Farmers in Rutsiro District of Western Province, Rwanda

This mixed-method study conducted in Rwanda's Rutsiro District (2024–2026) reveals that climate variability, particularly rainfall fluctuations and droughts, significantly undermines household income stability for 297 smallholder farmers, explaining 67.5% of income instability and necessitating urgent interventions in climate-smart agriculture and irrigation.

Benjamin Ndayishimiye, Jerome Ihuma, Delphine Mujawamariya, Jacques Nsengiyumva2026-07-06
📄 earth_science

Using portable x-ray fluorescence with biological collections to broaden ecotoxicology research

This paper outlines and demonstrates a strategy for expanding ecotoxicology research by pairing biological collections with portable x-ray fluorescence (pXRF) analyzers to enable rapid, non-destructive, and large-scale assessment of lead contamination in bird specimens across diverse spatial, temporal, and taxonomic scales.

Jordan Brown, Melissa Salazar, Aaron Specht, Baiyinah Abdullah, Shane DuBay2026-07-06
📄 earth_science

Phosphorus Allocation and Stoichiometric Homeostasis in Suaeda salsa Under Sediment Burial and Nitrogen Input in the Yellow River Delta

This study demonstrates that the pioneer species *Suaeda salsa* in the Yellow River Delta maintains strong phosphorus homeostasis across its organs despite sediment burial and nitrogen input, while adapting to these environmental disturbances by adjusting nitrogen/phosphorus stoichiometry and root phosphorus accumulation strategies.

Hongli Song, Chenghui Zhang, Jinkuan Sun, Juan An, Lizhi Wang, Yuanzhi Wu, Xiyuan Wu, Wanni Yu2026-07-06
📄 earth_science

Carbon storage efficiency and permeability decay during microbubble and conventional carbon dioxide injection in high-permeability sandstone

While microbubble CO₂ injection can enhance carbon storage efficiency in high-permeability sandstone at low flow rates by temporarily blocking dominant flow channels, it ultimately leads to greater permeability decay and injectivity risks compared to conventional injection, particularly at higher flow rates due to fines mobilization and cumulative formation damage.

Theo Le Gallais, Egi Adrian Pratama, Mohammad Sarmadivaleh, Klaus Regenauer-Lieb, Ali Saeedi, Quan Xie2026-07-06
📄 earth_science

Long-lead predictability of Indian summer monsoon rainfall from the new upgraded version of the monsoon mission coupled forecast system (MMCFSv2)

The study demonstrates that the upgraded Monsoon Mission Climate Forecast System version 2 (MMCFSv2) achieves its highest long-lead predictability for Indian Summer Monsoon rainfall when initialized in April, significantly improving the simulation of rainfall phase, amplitude, and extreme years compared to other initialization times.

S Lekshmi, Prasanth A Pillai, Ashish Dhakate, Moumita Bhowmik, Renu S. Das, Kiran Salunke, Nanaji Rao Nellipudi, Deepesh (…)2026-07-04
📄 earth_science

Climate and Land Cover Driven Redistribution of Water Balance in Bengaluru’s Source Watersheds: Implications for Regional Water Security

This study utilizes an ensemble of CMIP6 models and dynamic land cover projections to demonstrate that climate and land cover changes in Bengaluru's source watersheds will intensify the spatial and seasonal redistribution of water surplus toward runoff and infiltration pathways, thereby amplifying regional hydrological heterogeneity and posing significant challenges for future water security planning.

Suma Gubbi Rathna, Ravikumar Hanumantha2026-07-04
📄 earth_science

Dominant Role of Arbor Forests in Carbon Sink Enhancement: Dynamics and Drivers of Vegetation Carbon Storage in Pingxiang, China

Based on forest inventory data from 2003 to 2019, this study reveals that Pingxiang City's forest carbon storage more than doubled, driven primarily by the rapid expansion and improved density of young and middle-aged arbor plantations, which now constitute the dominant carbon sink supporting regional carbon neutrality goals.

Yuhang Wang, Jiaolong Wang, Duanlin Cheng, Fangjian Peng, Jianfeng Liu, Huiwu Peng, Qian Wu2026-07-04
📄 earth_science

Occurrence, fate, removal efficiency and ecological risk of selected antibiotics in wastewater and surface water of some hospitals: A case study in Vietnam

This study evaluates the occurrence, removal efficiency, and ecological risks of quinolone, macrolide, and β-lactam antibiotics in Vietnamese hospital wastewater and surrounding surface waters, revealing high contamination levels, variable treatment performance with AAO+MBR being most effective, and significant ecological risks primarily driven by ciprofloxacin.

Hung Nguyen Xuan, Thuy Le Minh, Nam Vu Duc, Tung Nguyen Ngoc, Nhan Le Van, Trung Nguyen Quang, Tuan Nguyen Anh2026-07-03
📄 earth_science

Impact of geomagnetic storm intensity on thermospheric density and orbital decay of LEO satellites: a G1–G5 per-event analysis

This study analyzes 22 geomagnetic storms from 2003 to 2024 using a per-event approach to demonstrate that orbital decay rates for low-Earth-orbit satellites scale monotonically with storm intensity and are modulated by altitude, resulting in a high-accuracy empirical model that supports improved orbit prediction and collision avoidance strategies.

Jeong-Heon Kim, Giwoong Eom, Young-Sil Kwak, Tae-Yong Yang, Hwanil Huh2026-07-03