000  $anz n  2
000  $a주제어
001  $aKSH1998043087
005  $a19980703125156
008  $a980703 n azknnaabn          |a a|a    | 
150  $a교목층[喬木層]
450  $a고목층[高木層]
450  $wr$i영어$atree layer
550  $wg$a광합성층[光合成層]
550  $a교목(나무)[喬木]
550  $a산림[山林]