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飞机播种造林是模拟天然更新的造林方法,它播前不整地,播后不覆土,依靠自然因素萌发生长。由于自然界多种因素的作用,形成了各种不同的立地条件,立地条件的各种因子,都直接影响着飞播造林的成苗效果。为了掌握飞播造林的自然规律,我们对不同立地条件与飞播造林的成苗效果进行了调查研究,现分析整理如下。一、不同植被与飞播成苗的关系植被与飞播造林的关系是既矛盾又统一,矛盾的一面是:植被过密,地表枯枝落叶层厚,影响种子
Aircraft sowing afforestation is a natural regeneration of the afforestation method, which premature sowing, after sowing does not cover the soil, relying on natural factors germination and growth. As a result of many factors in nature, a variety of site conditions and site conditions have been formed, which all directly affect the success of aerial seeding. In order to master the natural law of aerial seeding afforestation, we conducted a survey and study on the seedling establishment effects of different site conditions and aerial seeding afforestation. The analysis is as follows. First, the relationship between vegetation and aerial seeding Emerging vegetation and aerial seeding afforestation is both contradictory and unified contradictions are: the vegetation is too dense, the surface litter layer thick, affecting the seeds