Table 4 Mean composite fire return interval (years) for the presettlement (1600 to 1849), settlement (1850 to 1904), and the fire suppression period (1905 to present) for 34 sites in the Diamond Mountains, California. The mean fire return intervals (years) were longer (P < 0.05) during the settlement period than pre-Euro-American period and no fires burned in the fire suppression period.

From: Top-Down and Bottom-Up Controls on Fire Regimes Along an Elevational Gradient on the East Slope of the Sierra Nevada, California, USA