Sierra Nevada Research Institute

From Soil to Climate Solutions: Berhe Leads Sierra Nevada Research Institute into its Next Chapter

September 11, 2025

When Professor Asmeret Asefaw Berhe arrived at UC Merced in 2009, she and her husband, Professor Teamrat Ghezzehei, were leaving major research institutions to join a brand-new campus in California’s Central Valley. It was a leap of faith — one made easier by the Sierra Nevada Research...

In Yosemite, prescribed burning saved the Tuolumne giant sequoia grove from the Rim Fire, the largest-ever Sierra Nevada wildfire.

Wildfire and Water Challenge Solutions Featured in Documentary to Air on KVIE

UC Merced researchers outline solutions to the severe wildfire problems in California’s mountain forests and closely linked water resource challenges in a documentary premiering on KVIE, the...

Water Yield from Forest Thinning Depends on How, Where and How Much

Even a little forest management significantly increases water runoff in the Central Sierra Nevada and other semi-arid regions, while drier forests need more extensive treatments, according to a new...

Stands of brown, dead trees throughout Sierra Nevada forests

Multiyear Drought Caused Massive Forest Die-off in Sierra Nevada

The most extreme drought event in hundreds of years caused a catastrophic die-off of the Sierra Nevada’s mature trees in 2015-2016. A study published today in Nature Geoscience details how...

Sierra Seedlings Illustrate Effects of Climate Change on Next Generation of Forests

Climate change is bad news for forests, and a new study by UC Merced Professor Emily Moran demonstrates one aspect of that news. Higher summer temperatures hurt tree seedlings’ growth and...

Lengthy Study Shows Value of Soil Health and Forest Restoration after Damaging Events

A nine-year experiment by a UC Merced Department of Life and Environmental Sciences professor and his colleagues is illuminating the importance of soil carbon in maintaining healthy and functioning...

A picture of a soil chronosequence in Hawaii shows yellow sulfur-rich soil that has built up over millions of years.

UC Merced Researchers Help Uncover Soil Biodiversity

A rigorous, first-of-its-kind global study provides new insights into the natural history of soil biodiversity and shows that changes in soil pH during soil development is a major driver of most of...

Waterbirds take flight over a large wetland area along the Pacific Flyway.

Climate Change is Negatively Affecting Waterbirds in the American West

Climate change is having a profound effect on the millions of migrating birds that rely on annual stops along the Pacific Flyway as they head from Alaska to Patagonia each year. They are finding...

New Project to Build Climate Resilience through Improved Land Management

A $4.6 million grant to UCs Merced and Irvine will help researchers develop new tools and methods for better managing the state’s forests, shrub lands and grasslands. The Innovation Center...

Researchers Assess Western Forests’ Ability to Survive Next Drought

UC Merced researchers have evidence that California’s forests are especially vulnerable to multi-year droughts because their health depends on water stored several feet below ground. “...