Selecting Control Sites for Post-Fire Ecological Studies Using Biological Criteria and MODIS Time Series Data

Fire Ecology

Table 2 Variance measured for MPD (Mean Proportional Differences) and MSE (Mean Square Error) differences, and WCI (Width of the Confidence Interval) obtained for the shrubland time series that met three, two, one, and none of the proposed criteria. Different letters indicate significant differences (F test, P < 0.05).

Number of met criteria	MPD		MSE		WCI
Number of met criteria	NDVI	EVI	NDVI	EVI	NDVI	EVI
0	2.2 × 10⁻³ a	3.5 × 10⁻³ a	959.7 a	272.7 a	7 × 10⁻⁴ a	4 × 10⁻⁴ a
1	2.9 × 10⁻³ a	2 × 10⁻³ b	1255 b	274.8 a	8 × 10⁻⁴ a	3 × 10⁻⁴ a
2	1.1 × 10⁻³ a	1.5 × 10⁻³ c	479 c	166.6 b	5 × 10⁻⁴ b	3 × 10⁻⁴ a
3	4 × 10⁻⁴ b	1.4 × 10⁻³ c	218.9 d	163.9 c	6 × 10⁻⁴ b	4 × 10⁻⁴ a