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作 者:马畅 周鹏程 王君[1,2,3] 矫春晶 刘志宇 杨雨春 MA Chang;ZHOU Pengcheng;WANG Jun;JIAO Chunjing;LIU Zhiyu;YANG Yuchun(Jilin Provincial Academy of Forestry Sciences,Changchun 130033,China;Jilin Province Cross-regional Cooperation Science and Technology Innovation Center of Degraded Forest Ecosystem Restoration and Reconstruction,Changchun 130033,China;Northeast Native Tree Species Engineering Center,Harbin 150040,China;Forestry Investigation and Planning Institution of Jilin Province,Changchun 130022,China)
机构地区:[1]吉林省林业科学研究院,吉林长春130033 [2]吉林省退化森林生态系统恢复与重建跨区域合作科技创新中心,吉林长春130033 [3]东北乡土树种工程中心,黑龙江哈尔滨150040 [4]吉林省林业调查规划院,吉林长春130022
出 处:《吉林林业科技》2024年第6期1-7,20,共8页Journal of Jilin Forestry Science and Technology
基 金:吉林省科技厅项目(20230508006RC)。
摘 要:本文以吉林省125块水曲柳人工林样地的625株优势木作为研究对象,建立树高-年龄模型,编制立地指数表。结果表明:在12个生长模型中,逻辑斯蒂模型H=24.6257/(1+6.6019e-0.0901 A)拟合效果较好(R 2=0.9611,AIC=2598.714),通过计算各龄阶树高标准差(S)和变异系数(CV),确定了基准年龄(A 0)为40年,指数级距1 m,划分6个指数级距,运用标准差调整法编制立地指数表,落点和卡方检验表明,所编制的立地指数表精度较高,能够客观地评价吉林省水曲柳人工林的立地质量。In this paper,625 dominant trees from 125 plots of Fraxinus mandshurica plantation in Jilin Province were taken as research objects to establish tree height-age model and compile site index table.The results showed that among 12 growth models,the logistic model had good fitting effect:H=24.6257/(1+6.6019e-0.0901 A)(R 2=0.9611,AIC=2598.714).The baseline age(A 0)was determined to be 40 years by calculating the standard deviation(S)and coefficient of variation(CV)of the tree height at each age class.The index class spacing was 1m,and 6 index classes were divided.The site index table was compiled by the standard deviation adjustment method.The drop point test and chi-square test showed that the site index table had high accuracy and could objectively evaluate the site quality of F.mandshurica plantation in Jilin Province.
分 类 号:S792.41[农业科学—林木遗传育种]
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