Figure 6
From: Multi-Millennial Fire History of the Giant Forest, Sequoia National Park, California, USA
Temporal changes in fire frequency at three spatial scales in the Giant forest over the past 3000 years. In the upper graph (A), 50 yr moving fire frequencies (plotted on twenty-sixth year) are shown for a group of 6 trees (CME) sampled over an area of about 1 ha, and for several groups, and 32 trees combined over an area of about 70 ha near Circle Meadow. These time series are based on fire events from all fire indicators. The dashed lines show the sample depths in each time series. In the lower graph (B), fire frequencies are shown for all 52 dated trees from the Giant Forest. These time series are based on fire events from all fire indicators recorded by at least two trees and fire scars only as recorded by at least two trees.