CHINESE JOJURNAL OF APPLIED ECOLOGY, Volume 12, Issue 2,2001, Pages 253-256,
CHINESE JOURNAL OF APPLIED ECOLOGY, Volume 12, Issue 2,2001, Pages 210-212,
CHINESE JOURNAL OF APPLIED ECOLOGY, Volume 12, Issue 2,2001, Pages 233-236,
CHINESE JOURNAL OF APPLIED ECOLOGY, Volume 12, Issue 2,2001, Pages 161-167,
CHINESE JOJURNAL OF APPLIED ECOLOGY, Volume 12, Issue 2,2001, Pages 287-292,