福建柏人工林工艺成熟的研究

Study on the Technical Mature of Fokienia hodginsii Plantation

利用标准地和伐区调查设计材料,选择理查德方程建立福建柏人工林林分因子模型,采用联合估计方法建立林分材种出材率模型;在此基础上,探讨不同立地条件下经济材总量以及各分量(大原木、中原木、小原木)的工艺成熟,并兼顾数量成熟。结果表明:蓄积量、经济材总量及各分量的成熟龄与立地质量密切相关,立地质量越好,成熟龄到来的时间越早,反之亦然,但并非各种立地均适合于培育中原木和大原木。对于福建柏人工林,若要培育中、大原木,至少要在地位指数16m以上的林地上造林,而14 m指数以下的林地则只能用于培育小原木。研究结果可为福建柏人工林主伐年龄的确定提供参考。

Using the sample plot and felling area survey and design data,the stand factor model of Fokienia hodginsii plantation was established by choosing Richard equation, and the stand timber outturn percentage model was established by adopting the joint esti- mation method. Based on this study, the technical mature of total economic timber and each grades （large log, moderate log, small log） under different site conditions was analyzed with considering quantitative mature. The results showed the mature age of the vol- ume, total economy timber and each grades had close relationship with the site quality;the better the site quality was, the earlier the mature age would came;and vice versa, but not all site conditions were suitable for cultivating moderate and big log;for the moderate and big log cultivation of F. hodginsii plantation, at least the site index 16 m should be adopted;it was for the small log that under the site index 14 m. The study could provides references for the final felling age determination of F. hodginsii plantation.