A.12.1% B.20.36% C.16.55% D.37.5%
A.皆伐、間伐、擇伐和漸伐B.喬林、矮林、中林和預備伐C.皆伐、擇伐、下種伐和間伐D.皆伐、擇伐和漸伐
A.1200萬m3 B.24萬m3 C.12萬m3 D.120萬m3