15年生桉树中大径材人工林生长规律与经济效益分析  

Growth Regularity and Economic Benefit Analysis of 15-year-old Eucalyptus Plantation

作　　者：施福军 龙敏 秦武明[3] 吴敏 SHI Fujun;LONG Min;QIN Wuming;WU Min(Liangfengjiang National Forest Park,Nanning,Guangxi,Nanning 530031,China;Guangxi Nanning Arboretum,Nanning 530031,China;College of Forestry,Guangxi University,Nanning 530001,China)

机构地区：[1]广西南宁良凤江国家森林公园,广西南宁530031 [2]广西南宁树木园,广西南宁530031 [3]广西大学林学院,广西南宁530001

出　　处：《山西农业科学》2019年第7期1272-1276,共5页Journal of Shanxi Agricultural Sciences

摘　　要：通过树干解析法和净现值法对桂南地区15年生桉树人工林生长规律和经济效益进行了研究。结果表明,15年生桉树人工林平均胸径、树高和材积分别达到25.40cm(去皮)、29.7m和0.7321m^3/株;材积连年生长量在第14年达到最大值(0.0921m^3/a),第15年时材积生长仍未数量成熟;人工林经营累计净现值为97808.4元/hm^2,内部收益率为18.44%,年均利润为18474.15元/hm^2,年均利润率为33.66%,中大径材人工林经营效益可观,投资前景广阔。The growth regularity and economic benefit of 15-year-old Eucalyptus plantation in southern Guangxi were studied by trunk analysis and net present value method.The results showed that the average DBH,tree height and timber volume of 15-year-old Eucalyptus plantation was 25.40 cm(barking),29.7 m and 0.732 1 m^3/plant,respectively.The annual volume growth reached its maximum value(0.092 1 m^3/a)in 14th year,and the volume growth not achieved the number of mature in 15 a.The cumulative net present value of plantation management was 97 808.4 yuan/hm^2,the internal rate of return was 18.44%,the average annual profit was 18 474.15 yuan/hm^2,and the average annual investment profit rate was 33.66%.The management benefit of middle and large diameter timber plantation was considerable and with a good investment prospect.

关 键 词：桉属 中大径材 生长规律 经济效益 桂南地区 

分 类 号：F326.2[经济管理—产业经济]