The Impact of Precipitation Regimes on Forest Fires in Yunnan Province, Southwest China

Table 4

Spearman’s correlation coefficient between precipitation amounts, drought index values, and fire activity in fire season for five ecoregions in Yunnan province, during the period 1989–2008.

Ecoregion		Number of fires	Area burned
I	Drought	0.536*	0.551*
	Precipitation	−0.510*	−0.527*
II	Drought	0.561*	0.576*
	Precipitation	−0.523*	−0.525*
III	Drought	0.601*	0.589*
	Precipitation	−0.565*	−0.572*
IV	Drought	0.683*	0.697*
	Precipitation	−0.597*	−0.576*
V	Drought	0.743*	0.762*
	Precipitation	−0.592*	−0.602*

denotes the drought index values; denotes precipitation amounts in fire season; *denotes significance at the 0.0025 level; the significance levels were adjusted by Bonferroni test correction.