Severe drought drives pulse of snags and fuel loads

Rates of tree death soared in the Sierra Nevada during the severe 2012-16 drought. While the acute effects of drought occurred over a short period, the mass mortality event kickstarted a decades-long process of snag fall, increased fuel loads, and changed fuel composition. Fuel loads, snag density, and snag fall rate were collected at two sites in Yosemite National Park (YOMI = mixed conifer site, YOPI = pine- dominated site) and one at Sequoia/Kings Canyon National Park (SEKI) and modeled to predict future fuel loads and snag fall rates.

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Northrop, Hudson, Jodi N. Axelson, Adrian J. Das, Nathan L. Stephenson, Emilio Vilanova, Scott L. Stephens, and John J. Battles. "Snag dynamics and surface fuel loads in the Sierra Nevada: Predicting the impact of the 2012–2016 drought." Forest Ecology and Management 551(2024): 121521.