The Sierra Nevada is such a high and rocky mountain range that one might wonder how trees like Jeffrey pines and giant sequoias are able to grow. Dust collected in Yosemite National Park contains nutrients such as phosphorus, calcium, magnesium, and potassium, which are not typically found in areas where there is a lot of granite rock. In work published last year, researchers reported that phosphorous and other nutrients travel to the Sierra Nevada via dust carried in the jet stream.
A team from UC Riverside and UC Merced conducted a study in Yosemite Valley to establish where the dust and minerals originated. After analyzing the dust they concluded that the (more…)