Huitong;
Experimental;
Station;
of;
Forest;
Ecology,;
Institute;
of;
Applied;
Ecology,;
Chinese;
Academy;
of;
Sciences,;
Shenyang;
110016,;
P.R.;
China;
Huitong;
National;
Station;
of;
Forest;
Ecology,;
Huitong;
418307,;
P..R.;
China;