Driving forest succession in karst areas of Chongqing municipality over the past decade

Forest Ecosystems

Table 3 Driving factors associated with rocky desertification in natural karst recovery areas

Category	Independent variable	Correlation coefficients	Contribution (%)
Climatic variables	Precipitation	0.592^a	23.73
Climatic variables	Temperature	0.001	4.79
Topography and soil	Altitude	0.204^a	7.43
	Slope	0.008^b	5.53
	Soil thickness	0.045	23.42
	Soil moisture content	0.104^b	11.28
Socioeconomic variables	Population	0.201	5.05
	GDP	0.001	4.21
	Traffic density	0.001	10.14
	Construction area	0.109^b	4.42

Standardized coefficients are reported as above. Parameters with relative contribution were identified by multiple regressions. ^aP < 0.01; ^bP < 0.05