吉林林业科技
吉林林業科技
길림임업과기
JILIN FORESTRY SCICNCE AND TECHNOLOGY
2014年
5期
31-32,46
,共3页
李储山%张青宇%轩志龙%李良%夏富才
李儲山%張青宇%軒誌龍%李良%夏富纔
리저산%장청우%헌지룡%리량%하부재
长白落叶松%生长量%蓄积量%经济效益
長白落葉鬆%生長量%蓄積量%經濟效益
장백락협송%생장량%축적량%경제효익
Larix olgensis Henry%growth%stand volume%economic benefit
采用解析木分析方法研究长白落叶松人工林生长过程,结果表明:径级10~15 a生生长较快,20 a生以后趋向稳定;树高15 a生以前生长迅速,20 a生后稳定生长;材积生长从20 a开始到40 a逐年增长,是生长旺盛期,40 a生平均生长量分别较20 a、25 a、30 a生增长了73.5%、41.5%和19.8%。40 a生落叶松每公顷木材产量分别为20 a、25 a生时的220%和169%,产值分别为292%和182%,年产值分别为146%和114%。长白落叶松人工林的培育方向应确定以大径级材为主。
採用解析木分析方法研究長白落葉鬆人工林生長過程,結果錶明:徑級10~15 a生生長較快,20 a生以後趨嚮穩定;樹高15 a生以前生長迅速,20 a生後穩定生長;材積生長從20 a開始到40 a逐年增長,是生長旺盛期,40 a生平均生長量分彆較20 a、25 a、30 a生增長瞭73.5%、41.5%和19.8%。40 a生落葉鬆每公頃木材產量分彆為20 a、25 a生時的220%和169%,產值分彆為292%和182%,年產值分彆為146%和114%。長白落葉鬆人工林的培育方嚮應確定以大徑級材為主。
채용해석목분석방법연구장백락협송인공림생장과정,결과표명:경급10~15 a생생장교쾌,20 a생이후추향은정;수고15 a생이전생장신속,20 a생후은정생장;재적생장종20 a개시도40 a축년증장,시생장왕성기,40 a생평균생장량분별교20 a、25 a、30 a생증장료73.5%、41.5%화19.8%。40 a생락협송매공경목재산량분별위20 a、25 a생시적220%화169%,산치분별위292%화182%,년산치분별위146%화114%。장백락협송인공림적배육방향응학정이대경급재위주。
Growth process of Larix olgensis Henry man-made forest was researched by using analytic trees analysis method , results indicated that the diameter class of 10 ~15 a grew quickly , and tended to stabilization from 20 a; The height growth before 15 a was more quickly , and tended to stabilization from 20 a.The volume of wood increased year by year from 20 a to 40 a, which was the vigorous growth period .The average increment of 40 a was 73.5%、41.5%and 19.8%more than 20 a、25 a、30 a, respectively.The timber yield per hectare of 40a was separately 220%and 169%of 20 a and 25 a, and production value was separately 292%and 182%by which annual value of production was 146%and 114%, respec-tively.Breeding direction of Larix olgensis man -made forest would be the large diameter class tree .