卡莫林大坝沉积物中的植被和孢粉记录，佩德拉布兰卡州立公园，巴西，里约热内卢

Q4 Social Sciences

Anuario do Instituto de Geociencias Pub Date : 2023-06-14 DOI:10.11137/1982-3908_2023_46_54699

Ortrud Monika Barth, Cynthia Fernandes Pinto da Luz, Marcia Aguiar de Barros, Shana Yuri Misumi, Edson Farias Mello

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引用次数: 0

摘要

佩德拉布兰卡州立公园位于里约热内卢市区附近。几条河流流向大西洋，到19世纪末，一些河流已经筑坝，目的是为当地居民提供饮用水。时至今日，卡莫林大坝仍在运行，自1908年建成以来，周围潮湿的热带森林已经恢复，目前对大坝西北部撤出的核心进行的孢粉学研究证明了这一点。6个分析水平的花粉分类具有热带雨林、森林先锋、坎波植被(虽然频率较低)和外来植物的特征。在整个岩心，岩形物的浓度起伏不定，这是由于大洪水造成的沉积变化造成的，大洪水不时袭击这一地区，但从未摧毁卡莫林大坝及其河流流域周围的森林。

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Vegetation and Palynological Record in Sediments of the Camorim Dam, Pedra Branca State Park, Rio de Janeiro, Brazil

Pedra Branca State Park is situated near urban areas of Rio de Janeiro city. Several rivers descend towards the Atlantic Ocean and the damming of some ones, by the end of the 19th century, aimed to provide drinking water to the population. To the present day, Camorim dam is in operation and since its inception in 1908, the surrounding humid tropical forest has recovered, evidenced by the present palynological study of a core withdrawn from the dam’s northwestern part. The six analyzed levels showed pollen grains from botanical taxa characteristic of Rain Forest, Forest Pioneers, Campo vegetation, although less frequent, and Exotic plants. The palynomorphs concentration fluctuated throughout the core, which was attributed to a variation in sedimentation due to large floods that from time to time punished this region, but never decimated the forest around the Camorim dam and its contributing river basin.

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来源期刊

Anuario do Instituto de Geociencias Social Sciences-Geography, Planning and Development

CiteScore

0.70

自引率

0.00%

发文量

审稿时长

28 weeks

期刊介绍： The Anuário do Instituto de Geociências (Anuário IGEO) is an official publication of the Universidade Federal do Rio de Janeiro (UFRJ – CCMN) with the objective to publish original scientific papers of broad interest in the field of Geology, Paleontology, Geography and Meteorology.