鄂西山区日本落叶松人工林全林整体模型研究与应用  

Research and Application of the Integrated Stand Growth Model of Larix kaempferi Plantation in the Mountainous Area of Western Hubei

作　　者：孙拥康[1] 汤景明[1] 王怡[1] 张宗立 林华 冯骏 蒲元志 SUN Yongkang;TANG Jingming;WANG Yi;ZHANG Zongli;LIN Hua;FENG Jun;PU Yuanzhi(Hubei Academy of Forestry,Wuhan 430075,China;Lichuan Forestry Bureau,Enshi 445400,China;State-owned Dashan Mountain Forest Farm in Enshi City,Enshi 445000,China;State-owned Changlinggang Forest Farm in Jianshi County,Enshi 445300,China)

机构地区：[1]湖北省林业科学研究院,武汉430075 [2]利川市林业局,湖北恩施445400 [3]恩施市国有大山顶林场,湖北恩施445000 [4]建始县国有长岭岗林场,湖北恩施445300

出　　处：《森林工程》2023年第3期57-63,共7页Forest Engineering

基　　金：湖北省林业科技支撑重点项目([2022]LYKJ02);中央财政林业科技推广示范资金项目(鄂[2020]TG07)。

摘　　要：为解决林分各测树因子及其生长模型之间的相容性问题,采用非线性度量误差联立方程组法建立鄂西山区日本落叶松人工林全林整体模型。研究结果表明,非线性度量误差联立方程组方法,能保证模型的相容性与无偏性;各林分因子的平均相对误差和相对均方误差均在6.5%以下,模型参数稳定性及预测精度均较高;建立的全林整体模型可用于不同初始条件的日本落叶松人工林林分生长收获预估、定量间伐作业设计以及林分密度控制图绘制。相关研究结果可为研究区日本落叶松人工林高效可持续经营提供科学参考。In order to solve the problem of compatibility between tree factors and their growth models,the integrated stand growth model of Larix kaempferi plantation in the mountainous area of western Hubei was established by using nonlinear measurement error simultaneous equations method.The results showed that the nonlinear measurement error simultaneous equations method can ensure the compatibility and unbiasedness of the model.The mean relative error and relative mean square error of each stand factor were below 6.5%,and the model parameter stability and prediction accuracy were high.The established integrated stand growth model can be used for stand growth and harvest prediction,quantitative thinning operation design and stand density control diagram drawing of Larix kaempferi plantations with different initial conditions.It can provide scientific reference for efficient and sustainable management of Larix kaempferi plantation in the study area.

关 键 词：日本落叶松人工林 度量误差 全林整体模型 林分密度控制图 鄂西山区 

分 类 号：S757[农业科学—森林经理学]