| 摘要: |
| 在对鄂西山区柳杉 Cryptomeria fortunei 人工林 60 块标准地立地分级基础上，采用非线性度
量误差联立方程组法建立了柳杉人工林全林整体模型，保证了模型的相容性和无偏估计；模型检验结果
表明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；同
时，应用全林整体模型可对不同初始条件的柳杉人工林林分生长进行模拟预测、定量间伐作业设计以及
绘制不同立地条件的林分密度控制图。 |
| 关键词: 全林整体模型 柳杉人工林 林分密度控制图 鄂西山区 |
| DOI： |
| 分类号: |
| 基金项目:湖北省林业科技支撑重点项目“日本落叶松人工林固碳增汇及结构调控技术”（[2022]LYKJ02）；中央财政林业科技推广示范资金项目“鄂西山区日本落叶松人工林高效可持续经营技术推广示范”（鄂[2020] TG07）。 |
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| Research and Application of the Integrated Stand Growth Model of Cryptomeria fortunei Plantation in the Mountainous Area of Western Hubei |
|
sunyongkang1, tangjingming1, wangyi1, zhangzongli2, linhua3, fengjun4, puyuanzhi3
|
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1.Hubei Academy of Forestry;2.Lichuan Forestry Bureau;3.State-owned Dashan Mountain Forest Farm in Enshi City;4.State-owned Changlinggang Forest Farm in Jianshi County
|
| Abstract: |
| Based on the site classification of 60 standard plots of Cryptomeria fortunei plantation in the
mountains area of Western Hubei, an integrated stand growth model of C. fortunei plantation was established by
using the method of nonlinear measurement error simultaneous equations, which ensured the compatibility and
unbiased estimation of the model; The model test results show that the average relative error and relative mean
square error of each stand factor were below 6.5%, and the stability and prediction accuracy of model parameters
were high; At the same time, the integrated stand growth model can be used to simulate and predict the growth
of C. fortunei Plantations under different initial conditions, design quantitative thinning operations, and draw
stand density control diagrams under different site conditions, providing a scientific reference for the efficient and
sustainable management of C.fortunei plantations in the study area. |
| Key words: integrated stand growth model Cryptomeria fortunei plantation stand density control diagram mountain area in Western Hubei |
