Figure 5.-Principal coordinates analysis of predictor variables and
fitted as trend surfaces a posteriori by generalized additive model in
Shunchang County.
300 m, P. massoniana ; (B) 800 m, P. massoniana ; (C) 800
m, Mixed forest; (D) 800 m, Urban; (E) 1,000 m, P. massoniana ;
(F) 1,000 m, Mixed forest; (G) 1,000 m, P. elliottii ; (H) 1,000
m, Farmland; (I) 1,000 m, Road.