Researchers deploy geochemical analyses to narrow down the search area for a soil sample’s site of origin—an approach that could prove useful to law enforcement.
Soils
Desert Life Conjures Organic Carbon from Thin Air
Without water, photosynthesis shuts down. To survive dry spells, desert microbes scavenge traces of hydrogen from the air and burn it for energy. Some even use hydrogen to fuel carbon fixation.
Soil Saturation Dictates Africa’s Flood Severity
The most complete hydrological data set for the African continent reveals a surprise: Soil moisture, not heavy precipitation, best explains the timing of Africa’s most severe floods.
Cores 3.0: Future-Proofing Earth Sciences’ Historical Records
Core libraries store a treasure trove of data about the planet’s past. What will it take to sustain their future?
Amazon Forests Are Turning into Savannas
Floodplain forests have low resilience to repeated exposure to wildfires. As climate change increases the instances of fires, forests may transform to less productive grassland ecosystems.
A Warming World Threatens Colombia’s Coffee Future
Colombia is the second-largest producer of Arabica coffee, but changing climate, soil, and precipitation patterns are already altering the harvest volume, production techniques, and even the taste of coffee.
Turf’s Dirty Little Secret
Greenhouse gas emissions from sports fields may be scoring points for climate change.
Soil Chips Help Scientists Spy on Fungal Navigation
Soil chips provide a micrometer-resolution window into life underfoot, shedding light on how fungi behave when navigating soil’s mazes.
Dueling Eyes on Ecosystem Metabolism Tell Diverging Stories
Multiple state-of-the-art independent observing systems consistently disagree on magnitudes and patterns of ecosystem metabolism of carbon dioxide, but together can shed new insight.
Observing the Sun via Soil Moisture Measurements
Solar radio bursts are background noise for satellite-based radio observations that monitor soil moisture, so, with appropriate processing, those observations can provide data on radio bursts.
