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机构地区:[1]广西生态工程职业技术学院,广西柳州545004
出 处:《中国农学通报》2011年第19期28-32,共5页Chinese Agricultural Science Bulletin
基 金:广西生态工程职业技术学院基金项目"柳州市主要用材树种地径材积表研制--以教学实验林场为例"(201102)
摘 要:编制广西地区湿地松短周期工业用材林二元材积表,为湿地松森林经营中蓄积量计量以及生产应用提供科学依据;笔者调查收集了广西国营钦廉林场9个营林分场不同立地条件、不同林分年龄和不同造林密度下的湿地松工业用材林样木632株,利用5个数据模型,采用DPS统计软件分析;通过比较选出最佳材积生长模型V=-0.036509+0.010357D-0.000730D2-0.000498DH+0.000084D2H+0.001466H,编制了湿地松短周期工业用材林二元材积表;模型1经精度检验,平均误差为6.1%,系统误差为2.9%,精度符合林业生产和应用要求。The paper focused on establishment of volume table with two factors for short-rotation industrial timber Pinus elliottii Engelm plantationin in Guangxi, which offers scientific bases for volume calculation and application of Pinus elliottii Engelm forestry management. 632 sample Pinus elliottii Engelm industrial timber trees were measured in 9 sub-farms of Guangxi stated Qinlian forestry farm with different site conditions, ages and density, 5 data models were conducted, the best volume increment model: V=-0.036509+0.010357D-0.000730D 2 -0.000498DH+0.000 084D 2 H+0.001466H and volume table with two factors D (diameter) and H (height) for short-rotation industrial timber Pinus elliottii Engelm plantation were established. The average error and system error were 6.1%, 2.9%, respectively in model 1, its precision was eligible to be used in forestry production and application.
分 类 号:S758.6[农业科学—森林经理学]
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