Environment

Extreme Weather Accelerates Nitrate Pollution in Groundwater

Extreme weather spurred by climate change, including droughts and heavy rains, may increase the risk of nitrates from fertilizers ending up in groundwater, according to a recent study from researchers at the University of California, Davis. The study found heavy rains after a drought caused nitrates to seep 33 feet under farm fields in as little as 10 days. The study was published in Water Resources Research.

In Greening Arctic, Caribou and Muskoxen Play Key Role

The story of Arctic greening has overlooked some main characters. At center stage are climate change and warming temperatures. Meanwhile, large grazing wildlife, such as caribou and muskoxen, also play a key role in the timing and abundance of Arctic plants, according to a study from the University of California, Davis.

Chinook Salmon Face Habitat Challenges

Chinook salmon are facing unprecedented challenges as their once-thriving populations struggle to survive. A new study published in the journal Ecosphere suggests that decades of human activities, including ocean harvest, artificial propagation and reservoir construction, have not only reduced the size of these fish, but also disrupted their ability to spawn successfully.

Smoke From Megafires Puts Orchard Trees at Risk

Long-term smoke exposure from massive wildfires lowers the energy reserves of orchard trees and can cut their nut production by half, researchers at the University of California, Davis, found. The smoke can affect trees for months after a megafire, depressing their bloom and the next season’s harvest. This finding reveals a new danger from wildfires that could affect plant health in both agricultural and natural environments.

Nature Plants published the study today (Oct. 2).

UC Davis Researchers Finding Ways to Fight Spotted Lanternfly

The adult spotted lanternfly is a majestic blend of red, yellow, black, white and tan, but this invasive insect from Asia has a voracious appetite for crops and is wreaking havoc in the mid-Atlantic.

The insects haven’t been found in great numbers in the Golden State but researchers at the University of California, Davis, are on the forefront of finding ways to control the tiny eggs of spotted lanternflies in hopes of protecting key international trade relationships and crops.