A STUDY OF THE VEGETATION IN THE FLORIDA EVERGLADES
A STUDY OF THE VEGETATION IN THE FLORIDA EVERGLADES
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DOI：
10.2307/1929916
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发表时间：
1959-01-01
期刊：
影响因子：
4.8
通讯作者：
LOVELESS, CM
中科院分区：
文献类型：
--
作者：
LOVELESS, CM
报告了对大沼泽地植物群落的调查结果，大沼泽地是一片位于佛罗里达东南部约3100平方英里的淡水沼泽。该地区的主要植被类型是锯木草、湿草原、斯劳和树岛群落。锯齿草群落以大莎草、锯齿草为特征，其覆盖面积大于其它类型的总和。潮湿的草原上主要是Rhynchospora属，荸荠属，和Panicum spp.水洼是天然的排水渠道，其中白色睡莲是最显眼的植物。树岛是海拔略高于邻近沼泽群落的地点。它们的面积从几英亩到300英亩或更多。树灌木，如红湾，蜡桃金娘和达胡恩冬青的特点植被。自然火一直是影响大沼泽地植物群组成的一个恒定因素。长期暴露在火中导致了植物相对耐火的协会。火也提高了酸性树岛土壤的pH值，导致大量增加的钙可用的量，并大大增加了镁的供应。
Results of an investigation of the plant communities in the Everglades, a freshwater marsh of approximately 3100 square miles situated in southeastern Florida, are reported. Principal types of vegetation in this region are the sawgrass, wet prairie, slough and tree island communities. Sawgrass communities, characterized by the large sedge, sawgrass, cover a larger area thanall the other types combined. The wet prairies are dominated by Rhynchospora spp., Eleocharis spp., and Panicum spp. Sloughs are natural drainage channels in which white water-lily is the most conspicuous plant. Tree islands are sites elevated slightly higher than adjacent marsh communities. They range in size from a few acres to 300 acres or more. Tree shrubs such as redbay, wax myrtle and dahoon holly characterize the vegetation. Natural fire has been a constant factor affecting the composition of the Everglades flora. Long exposure to fire has resulted in associations of plants that are relatively fire tolerant. Fire also raises the pH of the acid tree island soils, causes large increases in the amount of Ca available and substanially increases the supply of Mg.