Ball Marylyn C
Department of Environmental Engineering, Post, Buckley, Schuh and Jernigan, Inc., 7500 NW 52 St., Miami, Florida, USA.
Oecologia. 1980 Jan;44(2):226-235. doi: 10.1007/BF00572684.
Successional patterns were studied in mangrove forests which had developed recently in response to salinization of areas formerly supporting freshwater marshes along Biscayne Bay in North Miami, Florida. The population structures of these Induced Forests were compared with an adjacent Historical Forest which consisted of a nearly pure stand ofRhizophora mangle. A mixed forest ofRhizophora andLaguncularia racemosa had developed in intertidal areas, while areas above the mean high water elevation supported a scrub community dominated byLaguncularia. Maximum growth of bothRhizophora andLaguncularia occurred in intertidal areas, while both species were stunted and had sparse, poorly formed canopies in drier environments above the mean high water level. Analysis of population structure suggests that Induced Forests in intertidal areas are undergoing succession to a stand ofRhizophora. Laguncularia is unable to compete effectively withRhizophora in these areas and it is suggested that it eventually will be limited to the drier areas, where competition fromRhizophora will be reduced or absent.
对佛罗里达州北迈阿密比斯坎湾沿岸因先前支持淡水沼泽的地区盐碱化而近期形成的红树林中的演替模式进行了研究。将这些人工诱导形成的森林的种群结构与相邻的历史森林进行了比较，该历史森林由近乎纯林的红树组成。在潮间带地区形成了红树和拉贡木的混交林，而平均高潮位以上的地区则支持以拉贡木为主的灌丛群落。红树和拉贡木的最大生长量出现在潮间带地区，而在平均高潮位以上较干燥的环境中，这两个物种生长受阻，树冠稀疏且形态不佳。种群结构分析表明，潮间带地区的人工诱导森林正在演替为红树林分。在这些地区，拉贡木无法与红树有效竞争，有人认为它最终将局限于较干燥的地区，在那里来自红树的竞争将减少或不存在。
