Vegetation, Soil, and Climate on the Green Mountains of Vermont
Vegetation, Soil, and Climate on the Green Mountains of Vermont
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佛蒙特州青山上的植被、土壤和气候
DOI：
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发表时间：
1974
期刊：
影响因子：
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通讯作者：
T. Siccama
中科院分区：
文献类型：
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作者：
T. Siccama
北方森林的阿巴拉契亚延伸部分以香脂冷杉、红云杉和白桦为主，沿着绿山山脉的斜坡向下延伸至约 2,600 英尺（792 m），在那里与以糖枫、山毛榉和黄桦为主的东部落叶林融合。这两种森林结构在山上形成发育良好的水平带，其间有独特的张力带森林。在这片中坡森林中，落叶林和北方森林的物种都无法形成发育良好、寿命长的林分。落叶林和北方森林之间的接触是由气候而非土壤控制的。目前的植被和土壤发育是垂直气候不连续性长期影响的结果，表现为中坡过渡林无霜期长度的非线性下降以及大约100°C及以上云底频率的显着增加。 792 米其结果是雾滴和频繁的滴水导致水分增加......
The Appalachian extension of the Boreal Forest, dominated by balsam fir, red spruce, and white birch, extends down the slope of the Green Mountains to about 2,600 ft (792 m), where it merges with the Eastern Deciduous Forest dominated by sugar maple, beech, and yellow birch. These two forest formations occur as well—developed horizontal bands on the mountains, with a distinctive tension zone forest between them. In this midslope forest the species of neither the deciduous nor boreal forest are able to form well—developed long—lived stands. The contact between the deciduous and boreal forest is climatically, not edaphically, controlled. The current vegetation and soil development is the result of the long—term effects of a vertical climatic discontinuity expressed as a nonlinear decline in the length of the frost—free period across the midslope transitional forest and as a marked increase in the frequency of the cloud base at and above ca. 792 m. This results is increased moisture from fog drip and frequen...