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光皮桦为桦木科落叶乔木,高可达25米,胸径80厘米,生长快,耐干瘠土壤,更新力强。在我省中山—低山山区(海拔500—1200米,相对高300—500米)如北至桑植沅陵一带,南至莽山林区都有天然分布。为现有次生阔叶林优势或组成树种。它适应力强,生长速,造林及天然更新易,经济性能良好,具有推广价值。但目前部分林区对光皮桦缺乏认识,资源浪费严重。下面根据我们的一些调查,介绍光皮桦有关经济价值,生态生物学特性。望能引起有关部门重视。
Light birch birch Branch deciduous tree, up to 25 meters, diameter 80 cm, fast growth, resistance to dry soil, strong renewal. In our province Zhongshan - low mountainous area (500-1200 meters above sea level, relatively high 300-500 meters), such as the north to Sangzhi Yuanling area, south Mangshan area has a natural distribution. The existing secondary broad-leaved forest advantage or composition tree species. It adaptable, growth rate, afforestation and natural regeneration easy, good economic performance, with the promotion of value. However, at present, some forests do not have a good understanding of Siberian Birch, with serious waste of resources. Below, based on some of our surveys, we describe the economic value and ecobiology characteristics of Phoebe bidentata. Hope to attract the attention of relevant departments.