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作者在调查研究了播种绿化工作中,绿化效果不良的各种原因后认为,由于地面植物被复量低,严重受到冻举、霜柱的影响,绿化效果不良的坡面于施工后翌春就有发生。从而指出,就绿被形成量和防止坡面侵蚀效果来看,生育初期的草本被复量(干重)如达到50克/m~2 以上时,就会逐渐提高防止地面侵蚀的效果。为了减轻冬期冻举、霜柱的影响,希望进一步保持200—300克/m~2以上的地面被复量。如从造林施工地绿被形成量(干重)来看,生育旺盛的地方被复量达200—500克/m~2以上,中等程度的地面的被复量为100克/m~2,而绿化不良地仅为10—30克/m~2。附带地说,牧草地等植被
After investigating and studying various reasons for poor afforestation effect in planting and afforestation work, the author believes that due to the low complex weight of the ground plants, the effect of frost column and the influence of frost column on the green plants, there will be a slope with poor greening effect on the following spring after construction occur. It is pointed out that the amount of green to be formed and the effect of preventing erosion on the slope surface shows that the effect of preventing ground erosion gradually increases when the initial weight of the herb is increased by 50 g / m 2 or more. In order to reduce the winter freeze, the effect of frost column, hoping to further maintain the ground volume of 200-300 g / m ~ 2 is complex. For example, from the amount (dry weight) of the green to be afforestation site, the areas where fertility is abundant are over 200-500 g / m 2, the medium ground level is 100 g / m 2, The poor greening is only 10-30 g / m ~ 2. Incidentally, pasture and other vegetation