植被模式可以揭示具体地点的许多地理信息,通过研究林木生态有助于弄清中南阿拉斯加的地形地貌特征。在梳理阿拉斯加林木特征的基础上,对阿拉斯加中南部地区的林木生态地理特征进行了分析。指出:中南阿拉斯加的地理特征变化多端,不同类型的环境中长满了多种多样的植被。中南阿拉斯加没有真正的松树,云杉和铁杉作为松树科的代表在这一地区生长着,它们生长在降水量大且排水良好的地区。在中南阿拉斯加以纸质树皮为特征的桦树极其常见,它们只以高大灌林的形式存在,生长在排水良好的土壤中,经常在河底的高地上。柳树科林木以欧洲大叶杨、香脂白杨、颤杨以及数不清的柳树为代表,欧洲大叶杨和香脂白杨长在水分充裕的地方,通常沿着河渠的岸边生长。颤杨喜欢生长在较为干燥的地方。真正的柳树通常遍及中南阿拉斯加,它们更喜欢潮湿的环境。 Vegetation patterns reveal many of the geographic information at a particular site. By studying the forest ecology, it is helpful to understand the topography of Alaska in central and southern China. On the basis of combing the features of Alaskan trees, the ecological characteristics of the trees in south-central Alaska were analyzed. Pointed out that the geographical features of Central and South Alaska vary greatly and that different types of environments are covered with a wide variety of vegetation. There are no real pine trees in Central South Alaska, and spruce and hemlock are growing in this area as representatives of the Pinaceae family, which grow in areas with large amounts of precipitation and well-drained water. Birch trees, characterized by paper bark in Central and Southern Alaska, are extremely common, they exist only in tall shrubs, grow in well-drained soils, often on high ground in the river. Willow Corolla is represented by European poplars, balsam poplar, viburnum and untold willows. European poplars and balsams are long in well-watering habitats and often grow along the canals. Ching Yang like to grow in a more dry place. The real willows are usually found in Alaska, Central South, where they prefer wet conditions.