泰顺县松类纯林改造技术研究

Pine hardwood transformation technology research

通过套种造林、封山育林、抚育改造等措施,将马尾松纯林改造成针阔混交林,以改变树种结构单一、地力日益衰退、病虫害逐年严重、林地灌木杂草丛生、火灾频繁发生、林分产量低下等状况。结果表明:在松林下套种阔叶树,可不同程度增加单位面积阔叶树数量,形成明显的层次结构,能充分利用林地中的营养空间,马尾松和阔叶树在各自不同层次生长范围利用光照,混交复层林利用空间显得更为充分;可增加林地有机质含量,提高土壤肥力,有效地促进和保证目的树种的生长,增加松树林分的生物多样性和结构的稳定性,改善林地的生态环境和生产力,对建设生态县具有重要的现实意义。

In this study, intercropping reforestation, closed forest, tending reform and other measures, will be transformed into a pinepure forest conifer, to change the structure of a single species, increasing soil fertility decline, a serious pest and disease every year, woodland shrub weeds, frequent fires, forest points such as tow output state. The results showed that： intercropping under a pine hardwood, can be increased to different degrees the number of broadleaf trees per unit area, forming a clear hierarchical structure, can take advantage of woodland in the nutrition room, pine and broadleaf trees growing at different levels in the range of their use of light, re-storied mixed use space is even more full. Through the closed forest, forest tending reform and other measures to increase organic matter content, improve soil fertility, the purpose of effectively promote and ensure the growth of trees. Transformation of the broad-leaved pine forest, take a variety of ways to create a forest of technical measures, to gradually become re-storied coniferous or mixed forests, pine stands to increase biodiversity and stability of the structure, to radically improve forest the ecological environment and productivity, its construction is important to promote eco-county significance.