防护林科技
防護林科技
방호림과기
Protection Forest Science and Technology
2015年
10期
44-46
,共3页
日本落叶松%大径材%培育技术
日本落葉鬆%大徑材%培育技術
일본락협송%대경재%배육기술
Larix kaempferi%large-sized timber%cultivation technology
通过对26年生日本落叶松大径材的培育试验研究,结果表明：以保留密度600株 hm-2和750株 hm-2的效果最佳,伐后5年大径木可增加50%左右,是对照区的3倍,小径木下降70%左右。主伐时产量预测为：600株hm-2的林分材积416.94 m3 hm-2,产值91.96万元 hm-2；750株 hm-2的林分材积453.28 m3 hm-2,产值93.62万元 hm-2。
通過對26年生日本落葉鬆大徑材的培育試驗研究,結果錶明：以保留密度600株 hm-2和750株 hm-2的效果最佳,伐後5年大徑木可增加50%左右,是對照區的3倍,小徑木下降70%左右。主伐時產量預測為：600株hm-2的林分材積416.94 m3 hm-2,產值91.96萬元 hm-2；750株 hm-2的林分材積453.28 m3 hm-2,產值93.62萬元 hm-2。
통과대26년생일본락협송대경재적배육시험연구,결과표명：이보류밀도600주 hm-2화750주 hm-2적효과최가,벌후5년대경목가증가50%좌우,시대조구적3배,소경목하강70%좌우。주벌시산량예측위：600주hm-2적림분재적416.94 m3 hm-2,산치91.96만원 hm-2；750주 hm-2적림분재적453.28 m3 hm-2,산치93.62만원 hm-2。
Cultivation experiments of 26-year-old Larix kaempferi large-sized timber were conducted.Result shows that the effect of adopting reserve density with 600 trees hm-2 & 750 trees hm-2 is optimal;five years after cut-ting large-sized timber can increase about 50%,which is three times as large as the control area;the small trees de-crease about 70%.While final felling the product forecast is:stand volume of 600 trees hm-2 is 41 6.94 m3 hm-2 , the output value being 91 9,600 Yuan hm- 2 ;stand volume of 750 trees hm-2 is 453.28 m3 hm-2 ,the output val-ue being 936,200 Yuan hm-2 .
