Cold deserts, like the Colorado Plateau, US are the understudied relatives of warm deserts (eg. Sonora desert, US) with respect to their carbon cycling dynamics. Most of the rain pulse events measured in the Canyonlands region (Colorado Plateau) were smaller than 5 mm. The biological soil crust (biocrusts) are an important community found in the first few millimeters of the soil. Because they are located at the soil-air interface, they dry quickly and are quick to respond to short-term changes in moisture a….